Спутник ФКИ. GPM. [Редактировать]

Global Precipitation Measurement (GPM) - совместная миссия JAXA и NASA, чтобы осуществлять частые (каждые 2-3 часа) наблюдения за осадками на Земле. Проект предоставит глобальные карты осадков, чтобы помочь исследователям в изучении мирового климата, улучшении прогнозирования чрезвычайных событий. Проект основан на успешной миссии Tropical Rainfall Measuring Mission (TRMM), которая также является совместной деятельностью NASA и JAXA. Проектом управляет Центр космических полетов имени Годдарда NASA. Спутник измеряет двух и трехмерную структуры облаков Земли и обеспечит новый стандарт калибровки для остальных гидрометерологических спутников. 

Состав и структура аппарата:

  • Dual-frequency Precipitation Radar - двучастотный радар.
  • GPM Microwave Imager - микроволновая камера.
  • GPM Core Observatory - платформа аппарата. 

Дополнительные наименования

#НаименованияПоиск в новостяхПоиск в документах
139574НайтиНайти
2Global Precipitation Measurement MissionНайтиНайти

Дополнительная классификация

#Наименования
1Страна оператор(владелец) - Международные
2Страна производитель - Международные
3Тип орбиты - НОО
4Тип оператора(владельца) - государственный

Новостная лента[Найти информацию в новостях] [Найти информацию в документах]

#Новостная лента.
12011-10. Проведена перепланировка графика работ и определена дата старта - июнь 2011 года.Тэги: GPM
22012-05. Проведена установка радара и камеры на платформу.Тэги: GPM
32012-09. Доставлены все компоненты аппарата, включая тестовые батареи. Проведено предварительное тестирование аппарата.Тэги: GPM
42013-01. Проведено испытание аппарата. Однако, чтобы избежать проведения теплового вакуумного тестирование на внешних предприятиях, график испытаний был измене так, чтобы не потребовалось отправлять комплектующие на предприятия для повторного тестирования. В результате тепловые тесты были завершены на месяц позже чем было запланировано, что повлияло на график работы с James Webb Space Telescope (JWST) поскольку работы должны были проводиться на одном и том же оборудовании.Тэги: GPM
52014-02. Данные аудита программы подтверждают, что все работы проводятся в точном соответствии с план-графиком работ.Тэги: GPM

Технические характеристики

#ХарактеристикаЗначение
1Масса, кг3850
2Платформа 1xGPM Core Observatory
3Полезная нагрузка 1xGPM Microwave Imager
4Полезная нагрузка 1xDual-frequency Precipitation Radar

Характеристики орбиты

#ХарактеристикаЗначение
1Наклонение, град65.0
2Апогей, км413.2
3Перигей, км400.0
4Период, минут92.6
5САС, год3
6Длинный диаметр эллипса, км6777

Пусковые характеристики

#ХарактеристикаЗначение
1Дата пуска2014-02-27
2Код NSSDC2014-009C

Экономические характеристики

#ХарактеристикаДата измеренияЗначение
1Оператор Космическое агентство Японии
2Оператор Космическое агентство США
3Производитель Goddard Space Flight Center
4Производитель Ball Aerospace
5Производитель Космическое агентство Японии
6Производитель National Institute of Information and Communications Technology
7Производитель NEC Toshiba Space Systems
8Прогнозируемая стоимость (проекта), млн. долл.2008-01-01600-1000
9Прогнозируемая стоимость (проекта), млн. долл.2009-01-01975.9
10Прогнозируемая стоимость (формулировки проекта), млн. долл.2009-01-01349.2
11Прогнозируемая стоимость (разработки), млн. долл.2009-01-01555.2
12Прогнозируемая стоимость (работы с аппаратом), млн. долл.2009-01-0171.6
13Прогнозируемая стоимость (проекта), млн. долл.2010-01-01975.9
14Прогнозируемая стоимость (формулировки проекта), млн. долл.2010-01-01349.2
15Прогнозируемая стоимость (разработки), млн. долл.2010-01-01555.2
16Прогнозируемая стоимость (работы с аппаратом), млн. долл.2010-01-0169
17Прогнозируемая стоимость (проекта), млн. долл.2011-01-01928.9
18Прогнозируемая стоимость (формулировки проекта), млн. долл.2011-01-01349.2
19Прогнозируемая стоимость (разработки), млн. долл.2011-01-01514.8
20Прогнозируемая стоимость (работы с аппаратом), млн. долл.2011-01-0164.9
21Прогнозируемая стоимость (проекта), млн. долл.2012-01-01932.8
22Прогнозируемая стоимость (формулировки проекта), млн. долл.2012-01-01349.2
23Прогнозируемая стоимость (разработки), млн. долл.2012-01-01519.3
24Прогнозируемая стоимость (работы с аппаратом), млн. долл.2012-01-0164.3
25Прогнозируемая стоимость (проекта), млн. долл.2013-01-01932.8
26Прогнозируемая стоимость (формулировки проекта), млн. долл.2013-01-01349.2
27Прогнозируемая стоимость (разработки), млн. долл.2013-01-01509.5
28Прогнозируемая стоимость (работы с аппаратом), млн. долл.2013-01-0173.7
29Прогнозируемая стоимость (проекта), млн. долл.2014-04-01928.1
30Прогнозируемая стоимость (формулировки проекта), млн. долл.2014-04-01349.2
31Прогнозируемая стоимость (разработки), млн. долл.2014-04-01509.9
32Прогнозируемая стоимость (работы с аппаратом), млн. долл.2014-04-0169

Информация об удачном запуске

#ХарактеристикаЗначение
1Космодром Танегасима
2Дата пуска2014-02-27 at 18:37:00 UTC
3Полезная нагрузка 1xShindaiSat
4Полезная нагрузка 1xITF 1
5Полезная нагрузка 1xGPM
6Полезная нагрузка 1xOPUSAT
7Полезная нагрузка 1xTeikyoSat 3
8Полезная нагрузка 1xINVADER
9Полезная нагрузка 1xKSAT 2
10Полезная нагрузка 1xSTARS 2
11Ракета-носитель 1xH2A202

Найдено 1000 документов по запросу «GPM». [Перейти к поиску]


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... Flight Center Greenbelt, Maryland 20771 (GPM) GPM Science Implementation Plan Date: April... Context of Earth Observations................................................................. 8   1.2   GPM Mission Architecture.............................................................................................................................. 9   1.3   GPM Science Organization ........................................................................................................................... 11   1.4   International and Interagency Science Collaboration.................................................................................... 12   2.   GPM Science Drivers .............................................................................................................13   2.1   New Reference... Freshwater Resources ............................... 18   4.   GPM Science Objectives ........................................................................................................18   5.   GPM Observation Requirements ............................................................................................19   5.1   Current... Space-based Precipitation Observations............................................................................ 21   5.3   GPM Measurement Capabilities.................................................................................................................... 23   5.4   Coverage and... ....................................................................................................................................................... 50   8.2   Integrated PMM Science and GPM Flight Project GV Implementation Approach...   9.9   Schedule and Milestones ............................................................................................................................... 66   Page 3 GPM Science Implementation Plan Date: April 2, 2013 10.   GPM Science Deliverables and Schedule..............................................................................67...   List of Acronyms ...........................................................................................................................81   Appendix A. GPM Level 1 and Level 2 Science Requirement... Radiometer Measurements .......................................................................................83   Appendix B. Enhanced GPM Sampling with a Low Inclination Observatory... for PPS Delivery.................................................154   Page 4 GPM Science Implementation Plan Date: April... JAXA will provide the GPM Core Observatory. The GPM core will provide... the CEOS Precipitation Constellation. 1.2 GPM Mission Architecture GPM is an international satellite... from one or more GPM constellation instruments. 1.3 GPM Science Organization The NASA... GPM Deputy Project Scientist for Data. The GPM Flight Project provides the GPM... activities to meet all GPM Project science requirements. GPM science activities in... the NASA and JAXA GPM Program Scientists. GPM Ground Validation (GV) is... GPM Project Scientist at NASA/Goddard. The GPM Flight Project provides the GPM Ground Validation System (GVS) comprising GPM-specific... and operations of the GPM GVS. The GPM Project GVS Manager has... storage funded under the GPM Project. The GPM Project GVS Manager takes... research in support of the GPM Mission. 2. 2.1 GPM Science Drivers New Reference... integral part of the GPM mission design. GPM is expected to make... to be operational in the GPM era. 4. GPM Science Objectives In view... (e.g., flood/drought, landslide, and hurricanes). 5. GPM Observation Requirements 5.1 Current Capabilities The... sounder radiometers in the GPM constellation. Page 30 GPM Science Implementation Plan... 2, 2013 inclination observatory (1) would increase GPM's ability to provide < 3 h sampling (a requirement... algorithms being developed for GPM in that GPM will ensure that the... precipitation products for GPM. 8. Ground Validation 8.1 Overview The GPM Ground Validation Program... on recommendations of the GPM GV Advisory Panel, GPM is establishing joint... data products within the GPM Flight Project. 8.2.2 GPM Flight Project Role in... from two core sources: GPM instruments and GPM partners L1 Ta or... contained in the GPM Science Data Management Plan (GPM-PPS-PLAN-0091... and Assimilation Office GMI: GPM Microwave Imager GPM: Global Precipitation Measurement GSICS... microwave sensors on GPM partner satellites. Section 4.6.1.4.2 The GPM Project shall use...: Ref. 1.GPM GMI Technical Requirements, GPM 422-30-00-001, GPM Project, NASA... these errors for the GPM-era. Page130 GPM Science Implementation Plan Date... the L1 requirements. 4.1 GPM Instrument Performance Requirements Page140 GPM Science Implementation Plan... retrievals. For the radiometer on GPM, the GPM Science Implementation Plan (SIP.... 4.2 Expected Improvements in GPM GV Measurements Of course, GPM satellite measurements are... made by the GPM Core. This will enable GPM to significantly improve...



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... and Rationale ....................................................................................................... 1 1.1 1.2 2. Ground Validation Implementation.......................................................................................................................3 GPM GV Management Structure ........................................................................................................................4 National Network... process validation........................................................................... 12 Table 3-2. Notional GPM GV field campaign deployment schedule.............................. 13 Page iii 10 GPM GV Science Implementation Plan Draft... validation data.................... 24 Page iv GPM GV Science Implementation Plan 1. Draft... The Global Precipitation Measurement mission (GPM) Ground Validation (GV) Science Implementation... overarching approaches to validation of GPM satellite constellation measurements, products, and... represent a culmination of GPM GV Science Panel and GPM Project inputs summarized... methodologies can physically reconstruct a Page 1 GPM GV Science Implementation Plan Draft... process studies—a significant component of GPM GV ground-based infrastructure will... will enable participation in numerous GPM-specific and joint-agency/international... during the lifetime of the GPM satellite constellation. 1.1 Ground Validation Implementation... enable direct statistical validation of GPM core-satellite reflectivities and core... coincident TRMM Precipitation Radar data (GPM Proxy). The resultant “first order... passive microwave components of the GPM constellation. To facilitate the development...-measurement capabilities including a new NASA GPM 2D video disdrometer network (under... and detailed microphysical measurements, formal GPM collaboration with external programs such... water-budget applications. 1.2 GPM GV Management Structure GPM Ground Validation is implemented... GPM Flight Project, which provides the GPM Ground Validation System (GVS) comprising GPM... algorithm development and evaluation. The GPM Flight Project is responsible for.../2008 operations of the GPM GVS. The GPM Project Ground Validation System... storage funded under the GPM Project. The GPM Project GVS Manager takes.... Interaction between the GPM GV Project Manager and GPM GV Science Manager..., and new validation procedures. Page 5 GPM GV Science Implementation Plan Draft... addresses direct statistical validation of GPM DPR radar reflectivity—the fundamental... available on the GPM GV web site http://gpm.gsfc.nasa.gov... described on the GPM GV web page http://gpm.gsfc.nasa.gov..., and radar data exchanged, between GPM GV and representatives from meteorological... approved international activities related to GPM GV. Complimenting both the national... dual-polarimetric VN processing. Page 9 GPM GV Science Implementation Plan 2.3 Draft... meteorological regimes. As such, the GPM Ground Measurements Advisory Panel recommended... 3-1. Physical process validation. Page 12 GPM GV Science Implementation Plan Draft... planning and execution. Table 3-2. Notional GPM GV field campaign deployment schedule... be the responsibility of GPM management. Page 13 GPM GV Science Implementation... are 2 See ““Global Precipitation Measurement (GPM) Ground Validation System Level 3 Requirements” and “Global Precipitation Measurement (GPM) Ground Validation System Level 3 Requirements... the U.S. that leverage GPM participation Page 15 GPM GV Science Implementation Plan... CloudSat Calipso Validation Project (C3VP) GPM algorithm development (PMW and DPR... snow to observed radiative properties (i.e., GPM dual-frequency radar reflectivity, passive... a 2011 Mid-latitude Continental Campaign GPM GV activities must vigorously address... of, the orbiting GPM DPR. GPM MC3E Science Objectives. GPM and ARM interests... provide a framework to directly test GPM ground validation logistics, instruments and methods. Specific GPM objectives for the MC3E include... of the core complement of GPM GV instrumentation (radars, profilers, disdrometers... and refinement of a physically-based GPM passive microwave retrieval algorithm for... CRM simulations, further develop/refine GPM DPR attenuation correction and precipitation... a potential model and vehicle for GPM GV integrated validation activities. NOAA... land (e.g., in support of contributed GPM constellation satellites, land-based campaigns... validation of the GPM retrieval algorithms. Page 22 GPM GV Science Implementation... collaborations was the 3rd International GPM Ground Validation Workshop held in... (GV) research activities between international GPM partners and the U.S. Precipitation Measurement.../MSC and approved by GPM. In exceptional cases GPM-funded data sets... conducted with other GPM GV partners. Page 25 GPM GV Science Implementation..., Australia. Kummerow, C. and W.A. Petersen, 2006, GPM Ground Validation: Strategy and Efforts.. http://gpm.gsfc.nasa.gov/ground_advisory.html..., S. Rutledge, and G.S. Jackson, 2007: NASA GPM/PMM Participation in the Canadian...



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... Research & Technology Center, Noordwijk, NETHERLANDS 5 6 GPM Project Science, NASA/Goddard Space... the International Global Precipitation Measurement (GPM) Program is to develop a next... agencies, i.e., in the vernacular of GPM -- “satellites of opportunity”. The heart... for the contribution of a European GPM (EGPM) satellite whose instrument capabilities... component is the internationally-organized GPM ground validation (GV) program, which... retrievals -- which will produce 3-hourly GPM precipitation products -- represent projected estimates... air quality? Figure 8: Relationship between GPM mission and central science questions... Mehta (2004a-b). Global Precipitation Measurement (GPM) Peaceful Use of Space: Remote... central scientific objectives of the GPM research program. Given its constellation... scales from hours to decades. 2. GPM Constellation Measuring Program Frequent, 3-hourly... anticipated measurement improvements from the GPM Core satellite have stimulated a new... processing design under development within GPM’s Precipitation Processing System (PPS). The... estimates with full-Earth coverage. 2.3 GPM Constellation Design The most distinctive... summarized in Table 1, each additional GPM constellation satellite also provides a unique....] 2.3.1 Dedicated Constellation Members Besides the GPM Core and EGPM satellites, which... circumstances. 19 Table 1: Summary of GPM’s anticipated and potential constellation members... TRMM could last until the GPM era. Nevertheless, without accentuating circumstances... other instruments) would augment the GPM constellation with a valuable capability -- although... is evident that the 9-member GPM constellation provides 3hourly coverage approximately... illustration of a possible scenario for a GPM constellation design, including dedicated constellation..., & -F15, AQUA, & CORIOLIS (9-member constellation) GPM Core, EGPM, Megha-Tropiques, NASA... diagram of potential GPM Mission constellation architecture. 25 3. GPM Mission’s Precipitation Processing System The GPM Precipitation Processing System... NASA’s central PPS architecture. 27 4. GPM Mission’s International GV Research Program... and principal scientific objectives of GPM’s International GV Research Program. A document... issue that needs attrention within GPM’s International GV Research Program. 4.2 Design of GV Research Program GPM’s International GV Research Program requires... Abingdon Workshop proceedings. Figure 22: GPM’s GV strategy requires sampling selection... summary, four principal objectives define GPM’s International GV Research Program: (1) Quantify uncertainties and error characteristics of GPM satellite retrievals, in metrics and... of precipitation’s physical processes. 30 5. GPM Mission’s Science Research & Applications Program... improvements being made to the GPM Mission’s precipitation measurements insofar as... measurement consistency provided by the GPM constellation architecture, the use of... water resources assessment-prediction. 32 5.2 GPM Mission’s Principal Scientific Themes In.... Thus, for NASA’s GPM Scientific Implementation Plan (GPM SIP -- see Smith et... globe represents "Anywhere" -- U.S. or World. GPM constellation members provide: ** Rainfall amount...) ** CRGNs-potential independent validator of GPM-retrieved pixel values. 3. Then question... clubs) in assessing and verifying GPM satellite measurements with micrometeorological scale raingauge networks. 5.3 GPM Mission’s Principal Scientific Challenges The... recommendations to various GPM Science Teams -- thus enabling GPM products to achieve... expediting testing and impact of GPM precipitation products on environmental forecasts... transfer of specialized GPM data products from GPM’s PPS nodes to research... approved) and precipitation-focused missions (i.e., GPM) -thus producing better understanding and... cloud and precipitation physics. 35 5.4 GPM Mission’s Anticipated Systemic Advances One... precipitation data products defined by GPM partners and stakeholders. (4) Development of... aperture PMW radiometers. Purposeof of GPM GPM Mission Purpose Mission 1. 2. 3. 4. 5. Measure Rainfall... a current overview of the GPM Program and eventual GPM Mission. Whereas much... GPM measurement concept, the internationally-based GPM research program, and the eventual GPM... analysis of Global Precipitation Measurement (GPM) Mission’s satellite constellation using GCM...: Snowfall measurements by proposed European GPM mission. Measuring Precipitation from Space... for international Global Precipitation Measurement (GPM) Mission. Bull. Amer. Meteorol. Soc..., 2002: The Global Precipitation Measurement (GPM) Mission. Mediterranean Storms 2001 (edited... S. Yuter, 2004a: Global Precipitation Measurement (GPM) Mission: Past progress and future... Programme of Global Precipitation Measurement (GPM) Mission: Report of 1st International GPM GV Requirements Workshop [4 – 7 November 2003; Abingdon, U.K.]. GPM Report Series...: NASA's Science Implementation Plan for GPM Mission. GPM Report Series #11, NASA...



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... FROM PREVIOUS VERSION 2.0 INSTRUMENTATION 2.1 GPM CORE SATELITE 2.1.1 GPM Microwave Imager 2.1.2 Dual-frequency Precipitation Radar 2.2 GPM CONSTELLATIONS SATELLTES 3.0 ALGORITHM DESCRIPTION 3.1 ANCILLARY... 4.2.1 Model Preparation 4.2.2 Preprocessor 4.2.3 GPM Processing Algorithm 4.2.4 GPM Merge 4.2.5 GPM Post-processor 4.3 PREPROCESSOR OUTPUT... Scan Header 4.3.3 Preprocessor Data Record 4.4 GPM PRECIPITATION ALGORITHM OUTPUT 4.4.1 Orbit Header... APPENDIX A: GPM CORE AND CONSTELLATION SATELITES A.1 GPM Core Satellite A1.1.1 GPM Microwave Imager... Global ANALysis) GPM (Global Precipitation Measurement) GPM Microwave Imager (GMI) GPM Profiling Algorithm... 1.1 OBJECTIVES The Global Precipitation Measurement (GPM) Mission is an international space... hours anywhere around the world. GPM consists of both a defined satellite... involving the global community. The GPM concept centers on the deployment... mission with integrated applications goals, GPM will advance understanding of the... Microwave Algorithms associated with the GPM mission. The passive microwave algorithm...’s GMI instrument and each of GPM’s constellation satellites. The specific implementation... describes the Global Precipitation Measurement (GPM) passive microwave rainfall algorithm, which... algorithm used to serve all GPM radiometers. The output parameters of... GMI and constellation radiometers. The GPM radiometer algorithm will be a Bayesian... and thus well suited for GPM’s constellation approach. The a-priori information supplied by GPM’s core satellite immediately benefits not... but all radiometers that form GPM constellations. Because the ultimate objective... of the document. Section 2 provides GPM satellite instrumentation background as well... separate section. 2.0 INSTRUMENTATION 2.1 GPM CORE SATELITE The GPM Core Spacecraft will fly two precipitation instruments: the GPM Microwave Imager (GMI) and the... on the DPR. 2.1.1 GPM Microwave Imager The GPM Microwave Imager (GMI) instrument... frequent-revisit-time requirements of GPM (see Fig. 1). The instrumentation enables... a 'radiometric standard' for the other GPM constellation members. The GMI is... the primary instruments on the GPM spacecraft. These Earth-pointing KuPR... 24 interlaced scans) Fig. 2. GPM swath measurements. 2.2 GPM CONSTELLATION SATELLITES In addition... Aug. 2006. 3.0 ALGORITHM DESCRIPTION The GPM radiometer algorithm is based upon... radars to simulate GPM’S DPR radar. Construction of the GPM a-priori databases... framework. A fundamental aspect of the GPM radiometer algorithm is that it... as having similar emissivities. The GPM algorithm is designed to work... 0.16 0.3 THE A-PRIORI DATABASE Eventually a GPM a-priori database will be constructed... existing sources that represent the GPM core satellite capabilities as best... the ocean precipitation results for GPM (GPROF2014) have been shown to... combination that closely mimics the GPM Microwave Imager (GMI) channel selection.../'MHS' 'M'SatSensor'/'PR' 'M'SatSensor/'NMQ'' GPM!Precipita2on! Algorithm!! S0'output' S1... the processing concepts for the GPM Processing Algorithm. 7 4.2.1 Model Preparation The... format) and the GPROF2014. The GPM sensor specific preprocessors read from... preprocessor is given in Section 4.3. 4.2.3 GPM Processing Algorithm (PA) - GPROF2014 The... each pixel in the GPM PA. 8 The GPM Merge routine will combine... that from the GPM PA. 4.2.5 GPM Post-Processor The GPM Post-processor reads... native binary output from the GPM Merge routine, attaches additional metadata... writes out a final HDF5 formatted GPM GPROF2014 file. The steps described...*4 real*4 integer*1 integer*1 integer*1 integer*1 GPM PRECIPITATION ALGORITHM OUTPUT Whether in... produced the data. For example: GPM, MeghaTropics, DMSP-F10, TRMM, WNDSat... PreProcessor Version GPM Pre-Processor version number. Algorithm Version GPM Processing Algorithm... Structure Flag Flag defining whether GPM Profiling Algorithm was run with... of Profiles Layers Defined for GPM profiling algorithm as 28. Number... array which holds the standard GPM profile structures. 4.4.7 Scan Variable Descriptions... atmosphere. Before the launch of GPM, this database was constructed from... through coincident overpasses between the GPM core satellite and available sounding... retrieval, as discussed at the GPM Algorithm Working Group Meeting in... algorithms with the GPM database: For the first GPM-based a-priori database...) from empirical to physical within GPM as well. The combined algorithm... classification and screening methodology for GPM-era microwave land precipitation retrieval... 123. 21 APPENDIX A A.1 GPM CORE SATELITE The GPM Core Spacecraft will fly two precipitation instruments: the GPM Microwave Imager (GMI) and the... on the DPR. A.1.1 GPM Microwave Imager The GPM Microwave Imager (GMI) instrument... frequent-revisit-time requirements of GPM (see Fig. A.1). The instrumentation enables... a 'radiometric standard' for the other GPM constellation members. The GMI is... the primary instruments on the GPM spacecraft. These Earth-pointing KuPR...



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... Measurement (GPM) mission ............ 143 6.4.1 GPM mission concept and status..................................... 145 6.4.2 GPM core sensor..................................................... 155 6.5.2 Combined retrieval methods for GPM ............................ 157 6.5.3 Passive retrieval methods ................................................ 159... is the Global Precipitation Measurement (GPM) Mission, which is designed to... goals and plans for the GPM Chapter 6 - Global precipitation measurement 135... and societal benefits in the GPM era. 6.2 Microwave precipitation sensors Satellite.... 6.4 The Global Precipitation Measurement (GPM) mission The GPM Mission is an international... hurricanes, floods and landslides. The GPM Mission is a primarily science mission... segments of the user community, GPM has tremendous potential for practical benefits to society. The GPM Science Objectives thus embrace both... mission. Table 2. Scientific Objectives of GPM 1. x x 2. x Advancing Precipitation Measurement Capability from... 6 - Global precipitation measurement 145 The GPM scientific program requires measurements of.... The integrated application goals of GPM ensure that the knowledge gained....). In terms of international programs, GPM serves as a cornerstone for the... Precipitation Constellation. 6.4.1 GPM mission concept and status The GPM concept centers on... products within a consistent framework. The GPM core spacecraft will carry the.... It is expected that the GPM core instrumentation will provide estimated... international space agencies over the GPM mission life. The constellation build.../or cross-track humidity sounder. GPM is a currently a partnership between NASA... an orbit that optimizes the GPM constellation coverage based on available... humidity sounders in the baseline GPM sampling reflects recent advances of... instruments make it possible for GPM to provide a precipitation estimate every... of the mission. Overall, the GPM constellation can provide better than... partner assets are available. The GPM sampling is designed for graceful... System (PPS) in coordination with GPM partner data processing sites to... A.Y. Hou et al. Fig. 3. The GPM Mission configuration with Core Spacecraft... global coverage 6.4.2 GPM core sensor instrumentation For the GPM Mission, NASA and... precipitation measurement 149 Fig. 4. The GPM Core Spacecraft with the DPR... Observatory. 6.4.3 Ground validation plans The GPM validation program is being developed... for TRMM. Aside from verifying GPM products through statistical comparisons with ground-based measurements, GPM requires that certain validation sites... require precipitation as input. For GPM, the GV strategy follows a three... used for direct assessment of GPM satellite data products. These will... climate application. In advance of GPM, ground validation is occurring to.... The algorithm development efforts for GPM reflect a hierarchy of products, as... 155 6.5.1 Active retrieval methods The GPM core satellite will carry a dual... of active research in the GPM community. Merely having two frequencies... combination of methods) chosen for GPM. A study designed to provide a better.... Figure 5 summarizes the main conclusion: GPM-core’s inner-swath algorithm should... results). 6.5.2 Combined retrieval methods for GPM The dual frequency radar rain... have already been established, the GPM algorithm is being developed along... the general framework needed by GPM. These physically-based algorithms retrieve... constellation sensors currently envisioned for GPM, but any future sensors that... a priori database generated by the GPM core satellite, whether it uses... passive microwave radiometers in the GPM constellation is an essential step... for the desired temporal coverage, GPM scientists are developing techniques to... from constellation member instruments using GPM Core sensor measurements as a reference... will provide common standards for GPM data streams without interfering with... algorithms being developed for GPM in that GPM will take advantage of... named the Global Precipitation Measurement (GPM) mission to develop the nextgeneration of global precipitation measurements. The GPM mission consists of the Core... km and temporal resolutions of 2–4 h. GPM’s Core Spacecraft will have measurement... microwave imagers and sounders. This GPM Core Spacecraft sensor package is... validation are built into the GPM mission framework. Ground validation ensures... retrievals from the constellation members. GPM precipitation estimates will be available.... The anticipated societal benefits of GPM are manifest in the integrated... global water and energy cycle, GPM measurements will make significant contributions... freshwater fluxes into the oceans. GPM’s integrated application goals will support... the oceans by GPM constellation satellites. Further, GPM’s observations continue the multi.... While these are a few of GPM’s integrated application goals, stakeholders such... and urban planning will find GPM’s global high resolution, accurate precipitation... support systems and operational requirements. GPM represents a truly significant milestone in...



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... Flight Center Greenbelt, Maryland 20771 GPM GVS Level 3 Requirements Draft July... FOREWORD This document is an GPM Configuration Management (CM) controlled document... require prior approval of the GPM Project Manager. Proposed changes shall be submitted to the GPM Configuration Management Office (CMO), along... document should be addressed to: GPM Configuration Management Office Mail Stop... Greenbelt, Maryland 20771 Page ii GPM GVS Level 3 Requirements Draft July 28, 2006 Global Precipitation Mission (GPM) Ground Validation System Level 3 Requirements..., 2005 Prepared by: Mathew Schwaller GPM Ground Validation Manager NASA/GSFC... Work-off Items..................................................................................................................54 Page v GPM GVS Level 3 Requirements Draft July..., 2006 TABLE OF FIGURES Figure 1-1. GPM Mission Architecture............................................................................ 2 Figure 1-2 GVS Operational Data Flow........................................................................... 3 Page vi GPM GVS Level 3 Requirements 1. Draft July... for NASA’s Global Precipitation Measurement (GPM) mission Ground Validation System (GVS). Overall, the GPM mission has defined a series of..., and ultimately improvement of the GPM spaceborne measurements and precipitation retrievals...: • Evaluation—Quantify the uncertainties in GPM standard precipitation retrieval algorithms • Diagnosis... and space error characteristics of GPM precipitation products generated by these...—Contribute to the improvement of GPM precipitation retrieval algorithms throughout the... sets forth requirements for NASA’s GPM GVS including necessary ground validation... Definition The Global Precipitation Measurement (GPM) mission is a partnership between the... lead management responsibility for GPM mission. The GPM mission definition includes the following elements: Page 1 GPM GVS Level 3 Requirements Draft July 28, 2006 • GPM core satellite carrying the JAXA... (DPR) and a NASA-provided, passive GPM microwave imager (GMI) • A GMI instrument... illustrated in Figure 1-1. UPDATE Figure 1-1. GPM Mission Architecture In meeting its... satellite and ground measurements Page 2 GPM GVS Level 3 Requirements Draft July... reports • Metrics database administration for GPM management analysis of GVS performance... documents for this specification: 1.5 • NASA GPM Project Level 1 Requirements. • NASA Global Precipitation Measurement (GPM) Mission (L2) Requirements Document (420.... Section 2 defines the overall Page 3 GPM GVS Level 3 Requirements Draft July... the projected launch of the GPM core satellite. GVS0105 Operations lifetime... minimum required lifetime of the GPM Core and Constellation Satellites. GVS0110... computer code c. External interfaces. Page 5 GPM GVS Level 3 Requirements GVS0135 2.2 Draft... of ground-based measurements with GPM core and constellation satellite retrieval... statistics and performance information. Page 6 GPM GVS Level 3 Requirements 3. Draft July... GVS shall... GVS0XXX Interface to GPM Management The GVS shall... GVS0XXX... data The FMPG shall receive GPM constellation spacecraft planning and scheduling... at maximum horizontal range. Page 9 GPM GVS Level 3 Requirements Draft July..., the following characteristics: Page 10 GPM GVS Level 3 Requirements Draft July..., the following characteristics: Page 14 GPM GVS Level 3 Requirements Draft July... reflectivity accuracy requirements of the GPM DPR. GVS-1.125 X-band scanning... accuracy of ≤0.2 degrees. Page 20 GPM GVS Level 3 Requirements Draft July... precipitation (Bragg Scattering). Page 27 GPM GVS Level 3 Requirements Draft July... collected and generated. Page 28 GPM GVS Level 3 Requirements Draft July... center wavelengths and bandwidths The GPM GV profiling radiometer shall operate... Radiometer rain mitigation capability The GPM GV profiling radiometer shall employ... data quality evaluations. Page 33 GPM GVS Level 3 Requirements Draft July... radar precipitation products. Page 35 GPM GVS Level 3 Requirements Draft July... phase. Rationale: Recommendation of the GPM Ground Measurements Advisory Panel, and... radar location. Compare/contrast to GPM PPS Level 3 Draft Requirement M12... product (Accept Corrected) Page 38 GPM GVS Level 3 Requirements Draft July...-defined parameter. Compare/contrast to GPM PPS Level 3 Draft Requirements M12... GVS. Rationale: Derived. Page 40 GPM GVS Level 3 Requirements Draft July... a 2-D array indicating the Page 41 GPM GVS Level 3 Requirements Draft July... satellite reflectivity fields. Page 42 GPM GVS Level 3 Requirements Draft July... regenerated. Rationale: Derived. Page 43 GPM GVS Level 3 Requirements Draft July... data products The A&D shall receive GPM Core and Constellation data products... function d. receive problem reports from GPM Management e. receive problem resolution reports from GPM Management. GVS0515 MD archive capability... provide user-defined reports to GPM management within 8 hours following the...



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Integrated Multi-satellitE Retrievals for GPM (IMERG) Technical Documentation George J. Huffman... 2 precipitation datasets GPM GPM Combined Instrument GPM constellation GPM Core Observatory GPM data access pages... Integrated Multi-satelliE Retrievals for GPM (*IMERG*) is the unified U.S. algorithm...-satellite precipitation product for the U.S. GPM team. The precipitation estimates from... microwave (PMW) sensors comprising the GPM constellation are computed using the...), then gridded, intercalibrated to the GPM Combined Instrument product, and combined... Integrated Multi-satelliE Retrievals for GPM (IMERG). Note that there are... formats” for more information. Initially, GPM data sets are being computed... mid-2015 for GPM sensor products). The GPM home page is located... of the Global Precipitation Measurement (*GPM*) mission, an international project of... Rainfall Measuring Mission (see “TRMM”). GPM has four key components: the Core Observatory, the GPM Constellation, the Precipitation Processing System (PPS), and GPM Ground Validation (GV) team. See... topic for more details. ........................................................................ The *GPM Core Observatory* was launched on... Sun-synchronous orbits in the GPM constellation. The calibrations are based... radar provided by JAXA. ........................................................................ The *GPM constellation* is a virtual constellation of... in the “sensors contributing to GPM” section. ........................................................................ 19 June 2015 IMERG... responsible for working with the GPM Science Team algorithm developers to... precipitation and related products. ........................................................................ The GPM Ground Validation *GV* team is... 1 GMI Tb's; 2. NASA/GSFC Level 2 GPM Combined Instrument (DPR-GMI) precipitation....nasa.gov/data-access/downloads/gpm .......................................................................... Users interested in *obtaining data...://pmm.nasa.gov/dataaccess/downloads/gpm). ........................................................................ The identifier *3IMERGHH* denotes the....nasa.gov/pub/GPMfilespec/filespec.GPM.V1.pdf , which includes a significant....nasa.gov/pub/GPMfilespec/filespecMeta. GPM.V1.pdf). ........................................................................ It is possible... that the precessing satellites (TRMM, GPM, Megha-Tropiques) create a complicated pattern... the sun-synchronous satellites. ....................................................................... The GPM Dual-frequency Precipitation Radar (*DPR... Iguchi et al. (2010). ........................................................................ The GPM Microwave Imager (*GMI*) is a multi... IMERG processing. ........................................................................ The GPM Combined Radar-Radiometer Algorithm (*GPM Combined Instrument*) provides... may become available during the GPM mission. ........................................................................ PPS dataset *2BCMB* contains...-pixel) output from the Version 1 GPM Combined Instrument algorithm, computed at... the RT calibrator. Accordingly, in GPM only a straightforward calibration to the... Correction Even before launch GPM instituted the GPM Working Group (*X-Cal Working... any other known uncertainty. Consequently, GPM developed the concept of a Level... degradation is introducing unacceptable error. GPM, TRMM, and Megha-Tropiques are..., P. Xie, 2014: GPM Integrated Multi-Satellite Retrievals for GPM (IMERG) Algorithm Theoretical..., R. Meneghini, N. Yoshida, J. Awaka, T. Kubota, 2010: GPM/DPR Level-2 Algorithm Theoretical Basis..., 633-664. Olson, W.S., H. Masunaga, the GPM Combined Radar-Radiometer Algorithm Team, 2010: GPM Combined Radar-Radiometer Precipitation Algorithm...-first-rain-radar-space. PPS, GPM Intercalibration (X-CAL) Working Group, 2010: NASA GPM Level 1C Algorithms Algorithm Theoretical...://pmm.nasa.gov/resources/documents/gpm-level-1c-algorithm-theoretical-basis....nasa.gov/data-access/downloads/gpm GPM data file naming: http://pps.../Documents/FileNamingConventionForPrecipita tionProductsForGPMMissionV1.4.pdf GPM home: http://gpm.gsfc.nasa.gov/ GPROF2014... TRMM Combined Instrument data set GPM GPROF2014 precipitation estimates using GMI... set half-hourly GPM IMERG data set monthly GPM IMERG data set... Digital Object Identifier Deutscher Wetterdienst (GPM) Dual-frequency Precipitation Radar (University... aNalysis Infrastructure Geographical Information System GPM Microwave Imager IMERG Tech Document... Integrated Multi-satellitE Retrievals for GPM IPWG International Precipitation Working Group.../additional/faq/precipitation_faq.shtml. .......................................................................... The *GPM data access pages* provide a one....nasa.gov/data-access/downloads/gpm .......................................................................... 19 June 2015 IMERG Tech...



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... Article V EUMETSAT Responsibilities Article VI GPM Mission Governance Article VII Scientific... of the Global Precipitation Measurement (GPM) mission, currently under development by... hazard events; Noting that the GPM mission is an international satellite mission currently composed of a GPM Core Observatory provided by NASA... EUMETSAT's satellites will strengthen the GPM constellation and the quality and timeliness of GPM data products; Noting that data from the GPM mission will assist EUMETSAT in... NASA and EUMETSAT in the GPM mission will benefit these organizations... related activities associated with the GPM mission; Have agreed as follows... agreed to cooperate on the GPM Mission. Article II — Definitions As... 1 brightness temperature data from the GPM Core Observatory, GCOM-W1, and all other GPM Partners' microwave sensors. All Instrument... in recognition of EUMETSAT becoming a GPM Partner through this MOU. 2 2. "EUMETSAT... first generation of Metop satellites. 3. "GPM Data" consist of Level 1C... all. other Level 2 and higher GPM standard data products as defined... (PMM) Science Team. 4. "GPM Mission" comprises the GPM Core Observatory provided by... possible future GPM Partners. 5. "GPM Participant" is a cooperating entity of a GPM Partner in... such by the aforesaid GPM Partner. The current GPM Participants are the... Information Services (INCOIS) for ISRO. - 6. "GPM Partner" means NASA, JAXA and... agency with a space segm'ent (i.e., GPM Core Observatory or constellation satellite) that contributes to the international GPM effort in accordance with an... conclusion of this MOU, the GPM Partners were NASA, JAXA, CNES.... 7. "NASA Data Products" consist of GPM products generated by NASA in... Description and EUMETSAT Participation — 1. The GPM Mission was designed by NASA... by deploying the space-borne GPM Core Observatory as a reference standard... research and societal applications. The GPM Core Observatory data will be... satellites of GPM Partners participating in the GPM 'ille primary GPM scientific objectives... high-resolution precipitation estimates. 3. 'Me GPM Core Observatory is planned for... three years. It will carry a GPM Microwave linager (GMI) instrument provided... inclination of 65.° enables the GPM Core Observatory to cut across... orbits of microwave radiometers of GPM Partners and to sample the... MOU, participate in the GPM Mission as a GPM Partner and contribute EUMETSAT... Medium-Range Weather Forecasts as *GPM Participant& EUMETSAT will also participate in the GPM Mission governance, as further detailed in Article VI (GPM Mission Governance). 4 Ist.0 RI; 5. EUMETSAT may participate in GPM science activities conducted by the...). 6. EUMETSAT may participate in the GPM global ground validation effort, which... and radar data products, validate GPM Data on a global basis, and... All Instrument Level 1 Data and GPM Data in both near realtime... research products in accordance with GPM Partner data policies. b. Provide access... theoretical basis document for the GPM Data (including brightness temperature products... collected by NASA and GPM Partners, subject to GPM Partners' data policies.... b. Provide data browser tools for GPM Data and NASA Data Products... in understanding, interpreting, and using GPM Data and NASA Data Products... EUMET SA1 Data. Article VI — GPM Mission Governance 1. EUMETSAT will participate in GPM Mission governance through a coordinating group... and technical coordination among the GPM Partners and to assist in establishing and enhancing the GPM Mission's global goals. 2. NASA and... approved GPM Partners and GPM Participants. Decisions on new GPM Partners and GPM Participants... of its members. The approved GPM Participants have access to the..., and services as their related GPM Partner. Article VII — Scientific Cooperation... the science goals of the GPM Mission, NASA has established a NASAselected... the U.S. scientific requirements for the GPM Mission and the science requirements... development and validation of the GPM Data subject to the approval... monitoring the development of the GPM Microwave Tnisiger (GMI) and reporting... elsewhere in collaboration with international GPM ground validation partners to evaluate... the measurement requirements for the GPM Mission. The NASA PMM Science.... 2. EUMETSAT may participate in the GPM science activities conducted by the... 1. The Parties will encourage each GPM Partner to make All Instrument... available to all of the GPM Partners in accordance with the... use All Instrument Level 1 Data; c. GPM Data and All Instrument Level... right of EUMETSAT to redistribute GPM Data and NASA Data Products... analysed results obtained from the GPM Data will be made available... credit the NASA/JAXA GPM Mission and the GPM Partners. In the... or publications are copyrighted, all GPM Partners will be granted a royalty...-term basis on the GPM Mission. If the GPM Mission is still... of such a termination on the GPM Mission. 2. Termination or expiration of...



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... RESPONSIBILITIES ARTICLE 4 - lSRO RESPONSlBlLlTIES ARTICLE 5 - GPM GOVERNANCE ARTICLE 6 - SCIENTIFIC INVESTIGATIONS ARTICLE... with NASA's Global Precipitation Measurement (GPM) mission and the ISRO­ CNES... agreement to address cooperation involving GPM and Megha-Tropiques cooperation; and... of Understanding for cooperation on GPM; Have reached the following arrangement... conduct the cooperation involving GPM and Megha-Tropiques. GPM was designed from... for research and applications. The GPM concept is based on using... set of international instruments comprising a GPM constellation. !SRO and CNES are... very likely overlap with the GPM operational mission phase. The Megha...-channel microwave humidity sounder (SAPHIR). A GPM partnership between NASA and ISRO... NASA in improved sampling for GPM multi-satellite global precipitation products...-JAXA launch partnership, in 20 I 3 a GPM Core Observatory will be launched... both a conically-scanning radiometer, the GPM Microwave lmager (GMl), and a dual... partners in the GPM mission. ARTICLE 2 DEFINITIONS l. The "GPM mission" comprises all... ground segment contributions provided by GPM partners, including the Core Observatory...-Wl) data provided by JAXA. 2. A "GPM partner" is a country or agency... satellite) contribution to the international GPM effort and jointly recognized by... shall each, individually, be a GPM partner. 3. "GPM data" consist of all standard... all other Level 2 and higher GPM standard data products, as defined... GPM Core Observatory, GCOM-Wl, and all other GPM partners' microwave sensors. 5. A "GPM participant" is a cooperating entity of a GPM partner in the framework of GPM... as such by the aforesaid GPM partner. ARTICLE 3 NASA RESPONSIBILITIES To...[pitation radar data from the GPM mission in both near-real... research products in accordance with GPM partner data policies. This includes data from all GPM partner radiometers should lSRO wish... System (PPS). These include all GPM standard data products: Level 1C... all other Level 2 and higher GPM standard data products. They also... of algorithm document for the GPM products (including brightness temperature products...) Data a. Provide access to all GPM data over Megha-Tropiques GV... GPM partners, subject to GPM partners' policies. c. Accept fSRO participation in the GPM... and radar data products, validate GPM data on a global basis, and... Level IC brightness temperatures from GPM partner radiometers and read/write.... c. Provide data browser tools for GPM data. d. Provide HOF 5.0 formatting assistance... radiometer data. e. Provide GfS formatted GPM data. f. Provide access to tools... the understanding and interpretation of GPM data. g. Provide assistance in understanding, interpreting and using GPM data, on a best efforts basis... validation and is useful for GPM satellite product evaluation and algorithm... participation of Indian investigators in GPM science activities conducted by the... Announcements of Opportunity (A Os). ARTICLES GPM GOVERNANCE I. fSRO shall participate in GPM mission governance through a coordinating group composed ofNASA, JAXA, and other GPM partners. NASA and JAXA co... and technical coordination among the GPM partners and to assist in establishing and enhancing GPM's global goals. 2. NASA and JAXA... approved GPM partners and GPM participants. Notification of new GPM partners and GPM participants... of its members. The approved GPM participants have access to the..., products, and services as the GPM partners. 5. i' ·: :.: ­ ARTICLE 6 SCIENTIFIC INVESTIGATIONS I. To... the science goals of the GPM program, NASA shall establish a NASA... science requirements for GPM, including the GPM algorithm development, GPM science data systems... standard data products for the GPM mission. 2. The NASA PMM Science... on the U.S. scientific requirements for GPM and the science requirements for... development and validation of the GPM standard products subject to the... elsewhere in collaboration with international GPM ground validation partners to evaluate GPM satellite data products. The NASA ... in the measurement requirements for GPM. The NASA PMM Science Team... 1. The Parties will encourage each GPM partner to make instrument Level... available to al1 of the GPM partners consistent with their respective... to the time at which GPM partners can use all instrument Level I data. c. GPM data and all instrument Level... IB radiometer data and GPM data to other GPM partners and participants... addition, ISRO may redistribute other GPM partners' instrument Level I data in... MADRAS and SAPHIR to other GPM partners and participants. 2. The analyzed results from GPM data shall be made available... the NASA-JAXA. GPM project and the approved GPM partners. [n the event... publications are copyrighted, all approved GPM partners shall be granted a royalty...