Спутник ФКИ. CloudSat. [Редактировать]

CloudSat — американо-канадский исследовательский спутник, запущенный 28 апреля 2006 с космодрома Ванденберг с помощью ракеты-носителя Дельта-2 7420-10C вместе с другим исследовательским спутником CALIPSO. Спутники запущены в рамках программы НАСА EOS (Earth Observing System (Система наблюдения Земли)) и предназначены для изучения облачного покрова Земли. CloudSat расшифровывается как Cloud Satellite, CALIPSO — Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observation.
Оба спутника решают общие задачи: получение трёхмерных изображений облаков и атмосферных аэрозолей; исследование того, как формируются и «развиваются» облака, как они влияют на погоду, климат, качество воздуха и количество осадков. Для этого на CloudSat установлен очень чувствительный радар с миллиметровой длиной волны (который более чем в тысячу раз чувствительнее обычного гидрометеорологического радара), а на CALIPSO — поляризационный лазерный локатор, который позволяет отличить в толще облаков водяной пар и кристаллы льда, жидкие и твёрдые частицы атмосферных аэрозолей. Кроме того, на CALIPSO имеется камера и инфракрасный радиометр. Спутники выведены на солнечно-синхронную круговую орбиту высотой 705 км.

Дополнительные наименования

#НаименованияПоиск в новостяхПоиск в документах
12006-016АНайтиНайти
229107НайтиНайти
3CloudSatНайтиНайти

Дополнительная классификация

#Наименования
1Страна оператор(владелец) - Франция
2Страна оператор(владелец) - США
3Тип оператора(владельца) - государственный
4Тип орбиты - НОО
5Страна производитель - Франция

Технические характеристики

#ХарактеристикаЗначение
1Масса, кг.847
2Масса (полезная нагрузка), кг.255
3Масса (платформы), кг.516
4Масса (топлива), кг.76
5Емкость запоминающего устройства (для научных данных), ГБит2.2
6Емкость запоминающего устройства (для телеметрии), мБит256
7Платформа 1xBCP-2000
8Мощность солнечных батарей (конец жизни), Вт1228
9Габариты, метра2,54 x 2,03 x 2,29
10Скорость (работы полезной нагрузки), мБит в секунду1
11Полезная нагрузка 1xCPR
12Мощность (требуемая), Вт571
13Мощность (предоставляемая), Вт822
14Мощность (полезная нагрузка), Вт346
15Емкость (аккумулятора), ампер часов40
16Точность (определения позиции), град<0.02
17Точность (управления), град<0.02
18Точность (позиционирования), метра<30

Характеристики орбиты

#ХарактеристикаЗначение
1Наклонение, град98.2
2Апогей, км710.8
3Перигей, км708.5
4Период, минут98.8
5САС, месяц22
6Длинный диаметр эллипса, км7080

Пусковые характеристики

#ХарактеристикаЗначение
1Космодром База Ванденберг
2Дата пуска2006-04-28
3Код NSSDC2006-016B

Экономические характеристики

#ХарактеристикаДата измеренияЗначение
1Стоимость (аппарат), млн. долл.185
2Разработчик NASA Jet Propulsion Laboratory
3Оператор Космическое агентство США
4Стоимость программы , млн. долл.2006-01-01217
5Производитель Ball Aerospace

Информация об удачном запуске

#ХарактеристикаЗначение
1Дата пуска2006-04-28 at 11:02:00 UTC
2Полезная нагрузка 1xCALIPSO
3Полезная нагрузка 1xCloudSat
4Ракета-носитель 1xДельта 2

Найдено 973 документов по запросу «CloudSat». [Перейти к поиску]


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... THE METEOSAT SECOND GENERATION AND CLOUDSAT SATELLITES Acknowledgements First and foremost... THE METEOSAT SECOND GENERATION AND CLOUDSAT SATELLITES Table of contents 1. INTRODUCTION... 1.6. STUDY AREA .......................................................................................................................... 12 1.7. SATELLITES ............................................................................................................................ 13 1.7.1. CloudSat ........................................................................................................................ 13 1.7.2. MSG ............................................................................................................................... 13 2. THEORY ...................................................................................................................................... 15... the Weather Radar ................................................. 19 2.2. DETAILED CLOUDSAT ALGORITHMS ..................................................................................... 20 2.2.1. Ice Water Algorithm... TYPES ........................................................................................................................ 27 3.2. MSG DATA ............................................................................................................................ 27 3.3. CLOUDSAT DATA ................................................................................................................... 28 3.4. RETRIEVAL BY GROUND... THE METEOSAT SECOND GENERATION AND CLOUDSAT SATELLITES 4.1.3. Case 3: Drizzle cloud: N.E Netherlands... ....................................................................................................... 58 APPENDIX 3: FORMAT OVERVIEW OF CLOUDSAT DATA PRODUCTS ................................................. 59 APPENDIX 4: BATCH... of Nebraska-Lincoln, USA) ................ 9 Figure 1-2: CloudSat Cloud Profiling Radar (CPR) operational... of the cloud within the CloudSat profiles. ................................................................................................. 41 Figure 4-9: Doppler radar... THE METEOSAT SECOND GENERATION AND CLOUDSAT SATELLITES Figure 1-1: Simplified Hydrological cycle... THE METEOSAT SECOND GENERATION AND CLOUDSAT SATELLITES • Microwave sensors and precipitation... THE METEOSAT SECOND GENERATION AND CLOUDSAT SATELLITES • • 1.4. • • • 1.5. Estimate the rainfall rates... data from CloudSat? How can vertical profile information from CloudSat be merged... GENERATION AND CLOUDSAT SATELLITES 1.7. 1.7.1. Satellites CloudSat The main reason for launching CloudSat was... THE METEOSAT SECOND GENERATION AND CLOUDSAT SATELLITES • (e.g. drizzle), and over estimate... METEOSAT SECOND GENERATION AND CLOUDSAT SATELLITES 2.2. Detailed CloudSat Algorithms 2.2.1. Ice Water Algorithm... THE METEOSAT SECOND GENERATION AND CLOUDSAT SATELLITES ∞ π 0 4 σ ext = 2∫ nγ ( D) D 2 dD Equation 2-12... THE METEOSAT SECOND GENERATION AND CLOUDSAT SATELLITES 2.3. Retrieval by Optical Remote... THE METEOSAT SECOND GENERATION AND CLOUDSAT SATELLITES vertically oriented while those... SEVIRI are horizontally oriented. Recalling, CloudSat is a polar orbiting satellite with... as well as the CloudSat website. Data regarding CloudSat path1 and internal... overpass of the CloudSat satellite. Data for the CloudSat Combined Water Content... from CloudSat. 1 2 • The physical properties of the cloud downloaded from the CloudSat.../public/predicts/gif/world/cloudsat/ : http://www.cloudsat.cira.colostate.edu/ 26... the CloudSat observations vis-à-vis the MPE product. The data on CloudSat... AND CLOUDSAT SATELLITES days depending on the latitude, only cases of CloudSat... temporal resolutions of CloudSat, MSG and Rain Radar. The CloudSat return period... likely to introduce errors. • Whenever CloudSat encounters a cloud which is precipitating... THE METEOSAT SECOND GENERATION AND CLOUDSAT SATELLITES 4. Results Fourteen different clouds... THE METEOSAT SECOND GENERATION AND CLOUDSAT SATELLITES 4.2.4. Case 4: South Eastern Netherlands... products, i.e. Cloudsat, MSG and the radar. In this case, the CloudSat overflew... CloudSat overpasses in the basin to allow a comparison of MPE and CloudSat... corresponding internal cloud properties from CloudSat using the radar rainfall intensity... THE METEOSAT SECOND GENERATION AND CLOUDSAT SATELLITES • Ice particle characteristics within... THE METEOSAT SECOND GENERATION AND CLOUDSAT SATELLITES References Austin, R., 2003. Level... 3: Format Overview of CloudSat data Products The CloudSat 2B-LWC Product produces... SECOND GENERATION AND CLOUDSAT SATELLITES The format chosen for CloudSat 2B-LWC... THE METEOSAT SECOND GENERATION AND CLOUDSAT SATELLITES rem"C:\programfiles\52N\ilwis\ilwis.exe"-Csetgrf... THE METEOSAT SECOND GENERATION AND CLOUDSAT SATELLITES Day of Event 1 2 3 4 5 6 7 8 9 10... THE METEOSAT SECOND GENERATION AND CLOUDSAT SATELLITES Day of Event 1 2 3 4 5 6 7 8 9 10... THE METEOSAT SECOND GENERATION AND CLOUDSAT SATELLITES 20061207 20061210 20061212 20061213...



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CloudSat and the EOS Constellation Graeme L. ... that the proposed launch of CloudSat to the point that it... lidar can be expected. The CloudSat mission was selected under the... in 2003. Although the original CloudSat concept included the combination of... measurements from a combination of sensors. CloudSat will fly in tight formation... be augmented sometime after the CloudSat launch by the lidar mission... two. The formation flying establishes CloudSat is a multisatellite, multi-sensor experiment... weather and climate. The baseline CloudSat payload consists of a millimeter-wave... on cloud formation. B. Payload The CloudSat payload consists of a 94-GHz..., AIRS, AMSR and MODIS. The CloudSat Cloud Profiling Radar (CPR) provides.... CLOUDSAT OVERVIEW The two key ingredients of the multi-satellite CloudSat experiment... the CloudSat spacecraft and the formation flying capability of the CloudSat spacecraft... PARASOL as well as Aura. CloudSat will formation fly with Aqua... noted previously, is unique to CloudSat and has been designed originally... EOS-PM constellation (A-train) with CloudSat flying in formation with EOS...) view of the Earth. The CloudSat mission was also designed with... date is March 2003. Both CloudSat and PICASSO-CENA are to.... 4.) Formation flying: Formation flying enables CloudSat to track the orbit of... set of measurements with the CloudSat radar. III. CONSTELLATION SYNERGY The... the 5.) Orbit and duration: The CloudSat orbit is dictated by the..., ice and precipitation information of CloudSat, optical property information and the... the individual algorithms. IV. SUMMARY CloudSat is a multi-satellite satellite experiment... climate models. In this way, CloudSat will provide a means for the... radar reflectivity obtained with the CloudSat 94 GHz nadir pointing radar... radar reflectivities provided by the CloudSat radar. Precipitation information derived from...



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... Eastern Canada during the Canadian CloudSat/Cloud-Aerosol Lidar and Infrared... situ observations during CLEX-9 and CloudSat data during C3VP. © 2009 Optical... situ observations and space-based CloudSat data. Lastly a summary is given... with Cloud Profiling Radar (CPR)/ CloudSat cloud data products. A. North Platte... was observed during the Canadian CloudSat/Cloud-Aerosol Lidar and Infrared... at 1800 UTC followed by CloudSat and CALIPSO. The MODIS true.... The blue arrow denotes the CloudSat track. For the purpose of... using CPR/CloudSat observations, a rectangular area centered along the CloudSat track was... compare retrieval results with collocated CloudSat data products within the selected... further identified a section of the CloudSat track in which the mixed.... This section corresponds to a 14 s CloudSat overpass from 18:04:24...) and mean sizes, we processed CloudSat De and ice water content... 2009 IWP ≈ τc =ða þ b=De Þ; ð12Þ and CloudSat IWP was obtained by the... and CloudSat cloud parameters. Figures 7(a) and 7(b) show the time series of CloudSat... series of the MODIS- and CloudSat-derived vertical profiles of De... are generally smaller than collocated CloudSat De due to the fact.... Moreover, differences in MODIS and CloudSat De are smaller for the... the blue arrow denotes the CloudSat/CALIPSO track and the red... re within the red box. CloudSat IWP up to t ¼ 8 s. For t > 8 s the... IWP is larger than the CloudSat IWP. A possible explanation is that... dominate the size distribution, and CloudSat substantially underestimates IWP. 4. Summary Many... with the support of collocated CloudSat data. The retrieved cloud optical... evaluated by comparison with collocated CloudSat data products. Retrieved ice crystal... are generally smaller than CloudSat mean sizes, because CloudSat radar tends to...



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... STUDIES TO BENEFIT FROM CLOUDSAT AND CALIPSO DATA CloudSat and CALIPSO data... aerosols over the globe. The CloudSat radar overpass of Hurricane Ileana... at the bottom of the CloudSat image is the ground return... Cycle 14 What's New 3 15 CloudSat and CALIPSO Herald in a New... nearly 20 data CD-ROMs. 3 CLOUDSAT AND CALIPSO HERALD IN A NEW... Laboratory, 3 Colorado State University Both CloudSat and the Cloud-Aerosol Lidar... improved weather and climate prediction. CloudSat is flying the first space... the surrounding aerosols. Combined with CloudSat data, CALIPSO provides the first... for interpreting the observations. Both CloudSat and CALIPSO began operational measurements... to routine onboard calibration, a small CloudSat-CALIPSO validation experiment conducted over... are operating as expected. The CloudSat "beginning of life" sensitivity is... bottom of page 1 shows the CloudSat overpass of Hurricane Ileana in... clouds now available from the CloudSat radar, which is approximately 4 five... and precipitation, a capability unique to CloudSat that should lead to substantial... assumptions of cloud physical processes. CloudSat provides the most direct way... the development of storms. The CloudSat radar unprecedented view of the... separate physics modules. Observations from CloudSat provide a powerful source of information... development of the ozone hole. CloudSat data products include (all as..., fluxes and heating rates. The CloudSat Data Processing Center (DPC) has... system interface found at: http://cloudsat. cira.colostate.edu/data_dist/OrderData... are located at: http://www.cloudsat.cira. colostate.edu/dataSpecs.php.... With the successful demonstration of CloudSat and CALIPSO, we are embarking... presentation on the recently launched CloudSat and Cloud-Aerosol Lidar and... provide measurements complementary to CALIPSO, CloudSat and the Tropical Rainfall Measuring...



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NATIONAL AERONAUTICS AND SPACE ADMINISTRATION CloudSat-CALIPSO Launch Press Kit April....gov Colorado Role - CloudSat Julie Simard Canada Role - CloudSat Canadian Space Agency... ........................................................................................................ 5 Quick Facts ................................................................................................................................. 6 Mission Overview ....................................................................................................................... 7 CloudSat Satellite ..................................................................................................................... 18 CloudSat Science Objectives ................................................................................................... 25 CALIPSO..., climate, weather and air quality. CloudSat and CALIPSO employ revolutionary tools... precipitation. "The new information from CloudSat will answer basic questions about...'s climate," said Dr. Graeme Stephens, CloudSat principal investigator at Colorado State... weather forecasting and climate prediction. CloudSat is managed by NASA's Jet... Information More information on the CloudSat-CALIPSO missions, including an electronic....gov/cloudsat and http://www.nasa.gov/calipso. 5 Quick Facts CloudSat Dimensions... instantaneous launch window Primary mission: CloudSat 22 months; CALIPSO 36 months... (U.S. $75 million, estimated) 6 Mission Overview CloudSat and CALIPSO were selected under... from current satellite measurement systems. CloudSat's primary mission is scheduled to...) above Earth. First acquisition of CloudSat's signal occurs approximately 97 minutes... begins. In-orbit checkout of CloudSat begins immediately after separation from... 45 days for CloudSat. Formation Flying Formation flying enables CloudSat to track... the CloudSat satellite in formation with CALIPSO and following Aqua. The CloudSat orbit will be adjusted and monitored to hold the CloudSat satellite... CloudSat radar trails Aqua by an average of about 60 seconds. CloudSat... is in the rear. CloudSat Satellite Operations CloudSat mission data are transmitted... Center, Hampton, Va. CloudSat Data Products The CloudSat Data Processing Center is... mapped to the CloudSat Cloud Profiling Radar profile locations. CloudSat's standard data... CALIPSO. CloudSat standard data products are produced at each CloudSat profile location... 2.5 kilometers (1.6 miles) long. A "granule" of CloudSat data is defined as one... the CloudSat Data Processing Center website at http://cloudsat.cira.colostate.edu. CloudSat... CloudSat's measurements. In addition to these standard and auxiliary products, the CloudSat... under development by the current CloudSat team are precipitation estimates including... all altitudes. CloudSat Data Access During the operations phase, CloudSat data will... a week. CloudSat Outreach The CloudSat Education Network is part of CloudSat’s education and... the CALIPSO mission. 17 CloudSat Satellite The CloudSat payload consists of a 94... parameters and subsystem configurations for CloudSat are nearly identical to those... arm Radar antenna Star trackers CloudSat satellite Thrusters Telemetry, tracking and... cloud-detection capabilities to achieve CloudSat's mission objectives but also enables... telemetry control. Spacecraft Bus The CloudSat spacecraft bus, developed by Ball... missions, that incorporates a number of CloudSat-specific modifications. The spacecraft structure... between the instrument and the CloudSat spacecraft bus. The subsystem receives... selected surface finishes. 24 CloudSat Science Objectives CloudSat and CALIPSO will provide... the cloud-climate feedback problem. CloudSat seeks to overcome shortcomings in... affect clouds and precipitation. 25 CloudSat Science Team Graeme Stephens, Colorado... Winker, NASA's Langley Research Center CloudSat Applications Advisory Group Gerald Schmidt... Earth's 32 surface. CALIPSO and CloudSat will provide comprehensive observations of.... Concurrent cloud observations from CALIPSO, CloudSat and other satellites will provide..., potentially saving lives and money. CloudSat will also help scientists determine... persist in the atmosphere? CALIPSO, CloudSat's sister mission, will take direct... a number of important scientific firsts: CloudSat and CALIPSO will provide the... vertical distribution of atmospheric warming. CloudSat will provide the first global.... CloudSat will provide the first ability to detect snowfall from space. CloudSat... System Science Pathfinder program, the CloudSat and CALIPSO satellites will fly... in formation, with CloudSat closely tracking CALIPSO. Adjustments to CloudSat's orbit are... convective regions. What Will CloudSat Do? CloudSat will provide the first global... effects on possible climate change. CloudSat's cloud profiling radar will "see... weather. Other potential uses of CloudSat's cloud-profiling radar data include... in numerical weather prediction models. CloudSat measurements used together with other... is the CloudSat project manager. Deborah Vane is the CloudSat deputy principal...



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... the 1978 Seasat mission. 7.5 CloudSat William A. Imbriale CloudSat (scheduled for launch in...-GHz cloud profiling radar (CPR). CloudSat will fly in tight formation... combination of data from the CloudSat radar with coincident measurements from.... 7.5.1 Cloud Profiling Radar (CPR) The CloudSat cloud profiling radar (CPR) [37... the QOTL. 7.5.2 Antenna Requirements The CloudSat instrument is driven by several... Switching Mechanism EIK Fig. 7-22. CloudSat antenna system (EIK = extended interaction... EIK EIK M6 Fig. 7-23. CloudSat antenna system block diagram. polarized... determined their location on the CloudSat spacecraft bus and would have... Feed Primary Amplifier Fig. 7-24. CloudSat quasi-optical transmission line schematic... from Boresight (deg) Fig. 7-25. CloudSat test horn radiation pattern, calculated... the initial proposal for the CloudSat mission, an axially symmetric Cassegrain... Fig. 7-26. Schematic of the CloudSat rotator design. Instrument Packages 399... overcome this potential problem, the CloudSat designers planned on implementing a frequency... to optimize the Fig. 7-28. CloudSat instrument in spacecraft envelope. Instrument.... 7-29. Scale drawing of the CloudSat collimating antenna (shaped reflector system... from Boresight (deg) Fig. 7-30. CloudSat collimating antenna calculated near-boresight... from Boresight (deg) Fig. 7-31. CloudSat collimating antenna far-from-boresight... Cloud Profiling Radar For the CloudSat Mission,” 2001 IEEE Aerospace Conference...



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...-AQUA, CALIOP-CALIPSO and CPR-CloudSAT) covering two time periods (winter... of satellites: AIRS, Calipso and CloudSat. We also employ data from... at 94 GHz frequency onboard CloudSAT form the basis for a number... (Mace et al., 2007). The CloudSat radar and CALIPSO lidar are..., while the lidar captures thin | 2.3 CloudSAT Discussion Paper 15 | 10 The...; see below) instruments onboard the CloudSat satellite provide the most complete... from November 2006 for the CloudSAT and CALIPSO data analysis, in...◦ N–82◦ N using AIRS, CALIPSO and CloudSAT data sub-sampled according to... maintain the geophysical consistency with CloudSAT and CALIPSO, which cannot sample... troposphere can be obtained from CloudSAT due to its ability to..., as mentioned in Sect. 2.3, the CloudSAT reflectivities are affected by ground... ground clutter, it complements the CloudSAT data in the combined profile... also evident in the combined CloudSAT-CALIPSO data. In this combined...-Aqua, CALIOP-CALIPSO and CPR-CloudSAT) with different sensitivities and spatial..., D. G.: Cloud type comparisons of AIRS, CloudSat, and CALIPSO cloud height and..., T., and Stephens, G.: Hydrometeor detection using CloudSat – an Earth orbiting 94 GHz..., A., Mitrescu, C., and the CloudSat Science Team: The CloudSat Mission and the A-TRAIN... in Fig. 3, but using combined CloudSAT-CALIPSO data. Full Screen / Esc...



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... the TRMM 13.5 GHz, the CloudSat 94 GHz, the upcoming EarthCARE... from air-borne and from CloudSat observations, i.e. unique signatures which cannot... CloudSat observations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 7.1. The quintessence of MS: second trip echoes in CloudSAT observations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 7.2. Reduced height gradients of CloudSat reflectivity... size distribution of the precipitation. CloudSat, launched in April 2006 [5], paved... ([7] and refer to the CloudSat web-page http://cloudsat.atmos.colostate. edu.... Mission name TRMM GPM GPM CloudSat EarthCARE ACE Radar frequency (GHz... from below the surface in CloudSat 94 GHz radar observations of... temperature dependent. For instance for CloudSat frequency jKw j2 is set... table database for the operational CloudSat rainfall retrieval algorithm (see [76... measured by the nadir-viewing CloudSat radar in a 4-km layer of... the ground. based on the CloudSat geometry, but is about 106... approximation to radars such as CloudSat, since it is not straightforward...,85], for the 94 GHz CloudSat [86,19,87,76] and... in snow when observed by a CloudSat-like radar. An example of... a beam-width of 0:71 and a CloudSat W-band radar flying at 705... Transfer ] (]]]]) ]]]–]]] ZSS [dBZ] @ 94.0 GHz, Cloudsat ZSS [dBZ] @ 13.8 GHz, TRMM... 0 −20 ZMS [dBZ] @ 94.0 GHz, Cloudsat 10 10 0 −10 −40 300...-like (left) and for the W CloudSat radar (right) corresponding to the... dBZ for the GPM and CloudSat radars. The dot-dashed line... reach tens of dB; in CloudSat configuration even profiles... of a surface-echo peak. For CloudSat the surface-range return is... the MS component expected for CloudSat observations can almost completely compensate... this paper. The launch of CloudSat has stimulated a second kind of... have been used to validate CloudSat’s W-band cloud profiling radar... the airborne CloudSat/CALIPSO Validation Experiment (CCVEx). Top panel: CloudSat radar re...flectivity in dBZ under the CloudSat ground-track; bottom panel: difference... ongoing efforts aiming at improving CloudSat’s forward modeling and cloud properties... of MS is present in CloudSat 94 GHz CPR reflectivity... CloudSAT observations An astonishing example of MS is provided by the CloudSat... [km] 7. Evidence of MS in CloudSat observations 15 10 5 0 −5 −20 −15... 25 Fig. 21. Upper panel: CloudSat reflectivity vertical cross-section... ½jŠÀZsim ½jŠj ð32Þ j¼1 MS ½jŠ are the CloudSat measured where ZCloudSAT ½jŠ and Zsim... only fits quite well the CloudSat Z-signal Please cite this article... 20 15 Height [km] 10 5 Z CloudSAT 0 ZMS simulated ZSS simulated −5 −10.... Top panel: one of the CloudSat reflectivity profile extracted... example. 7.2. Reduced height gradients of CloudSat reflectivity profiles As... rates from height derivatives of CloudSat nadir reflectivities. Assuming SS... auxiliary CloudSat information, GðzÞ being actually an output variable of the CloudSAT 2B... if MS effects are minor. CloudSat data for June–July–August... the Precip_flag of the CloudSAT 2C-PRECIP-COLUMN product have... SRT. The statistics refers to CloudSAT observations collected during JJA 2007... estimated via SRT to flag CloudSat MS-affected profiles. This...fied as rainy in the CloudSAT 2C-PRECIPCOLUMN product can be... has a counterpart in a CloudSat observed profile. Only CloudSat profiles over... [92] who, based on colocated CloudSat and RASTA 94 GHz air... least 2.5 dB MS enhancement in CloudSat observations at 8.5 km height in... temporally collocated with CloudSat overpasses, [95] showed that the CloudSat convective ice... correction. They suggested that the CloudSat profiles in convective ice... the freezing level height for CloudSat-simulated profiles are presented... an almost perfect counterpart in CloudSat observations in terms of vertical... has been applied only to CloudSat profiles over sea with..., Sassen K, Wang Z, et al. The CLOUDSAT mission and the A-train. Bull... N, Haynes J. On the use of CloudSat and data for estimating hurricane... radar multiple scattering effects in CloudSat configuration. Atmos Chem Phys... multiplescattering affected profiles in CloudSat observations over the oceans. J Geophys...fluence of multiple scattering on CloudSat measurements in snow: a model study... performance of the cloudsat radar & l1b processing. In: CloudSat/CALIPSO joint science... evidence of multiple scattering in CloudSat measurements. J Atmos Ocean Technol 2008... rates from height derivatives of CloudSat measurements. J Atmos Ocean Technol 2008... of precipitation: early results from CloudSat. Geophys Res Lett 2007;34... A, Hasson A, et al. Assessment of CloudSat reflectivity measurements and ice...



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...
Rainfall
Climatology.................................................................................................................... 9
 2.
 Science Goals ........................................................................................... 11
 2.1
 CloudSat
Algorithm
Evaluation
and
Improvement ...................................................................... 11... comparisons of rainfall products from CloudSat, Aqua, and the Tropical Rainfall... to characterize the ability of CloudSat, the Global Precipitation Measurement mission... imagers and sounders and the CloudSat CPR and assist in the... the cloud and rain field. CloudSat’s precipitation algorithms will also be... be used as input to CloudSat’s precipitation algorithms allowing the physical... LPVEx is a collaborative effort between CloudSat, the GPM Ground Validation (GV... the University of Helsinki (UH). CloudSat will lead the overall coordination... analysis and archival of results. CloudSat will support a majority of the.... Upon completion of field operations, CloudSat will oversee all subsequent data... are archived in a timely fashion. CloudSat will also coordinate with the... PMW imagers and sounders, the CloudSat CPR, and GPM’s GMI and... drive the synergisms between the CloudSat and GPM programs. 5 Draft 3/3/10...) (Kummerow et al, 1998) and CloudSat’s Cloud Profiling Radar (CPR) (Stephens...(s) and the retrieved intensity. While CloudSat exhibits a much smaller FOV than... rainfall estimates from co-located CloudSat and AMSR-E observations in the... Fig. 2 Reflectivity-altitude histogram of CloudSat CPR observations in the Gulf... characterize the ability of the CloudSat CPR, GPM DPR, and PMW... signatures for future algorithm development. 2.1 CloudSat Algorithm Evaluation and Improvement 2.1.1 Detection... detectable signal of -30 dBZ, CloudSat is, in principle, capable of... algorithms for detecting rainfall from CloudSat employ a hybrid approach that uses... precipitation. However, identifying rainfall with CloudSat requires that the ratio of... reflectivity at 720m, the lowest CloudSat range bin for which ground... at the surface? 2.1.2 Intensity Estimation CloudSat rainfall intensity estimates are very..., and multi-frequency radar observations. CloudSat’s precipitation algorithms will also be... radars at the time of CloudSat overpasses. Figure 5 shows an example... a snowfall scene observed by both CloudSat and the Kerava Cband radar..., respectively (discussed in Section 5). Fig. 5 CloudSat W-band and Kerava C-band radar... along the CloudSat ground track from 3D volume scans since CloudSat does..., rainfall and snowfall estimates from CloudSat, the Moderate Resolution Imaging Spectroradiometer... range, and radar reflectivities at W (CloudSat) and Ka-Ku bands (GPM... global oceans? The perspective from CloudSat, Geophys. Res. Letters 36, doi..., J. Kay, A. Gettelman, Z. Wang, 2008. The CloudSat Mission: Performance and early science... CloudSat/GPM CloudSat/GPM 1 1 Liquid water Particle size distribution and type CloudSat/GPM CloudSat... etc. (oceanic) Parsivel MRR Satellite CloudSat/GPM Small-precip to large... Canada/Andy H. 15 micron version CloudSat/GPM Environment Canada Wyoming Space... permitting FMI 20-25.9.2010 CloudSat CloudSat 1 MODIS 1 AMSR-E 1 AMSU-B 1 Model Analysis... experiment CloudSat Data Processing Center? CloudSat Data Processing Center? CloudSat Data Processing Center? CloudSat Data Processing Center? FMI/GPM/CloudSat FMI GPM CloudSat Distributed Atmosphere GSFC Group/SSM CloudSat 28



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0.19/5
... properties using data from the CloudSat, CALIPSO, and MODIS satellites Thorwald... the complementary nature of the CloudSat radar and CALIPSO lidar to... retrieval are compared with the CloudSat standard ice-only retrieval of... occurrence of hydrometeor layers by CloudSat and CALIPSO (Mace et al... and recently adapted it to CloudSat and CALIPSO (Delano¨e and Hogan..., Aqua was joined by the CloudSat radar and the CloudAerosol Lidar...-only version of the standard CloudSat product (Austin et al. 2009... accommodate the measurements from the CloudSat radar and CALIPSO lidar (Delano... to the same grid. The CloudSat radar provides a vertical profile of... to 60m in the troposphere. CloudSat reflectivities are linearly interpolated from... averaged horizontally on to the CloudSat 1.5km horizontal grid before being... short-range forecasts under the CloudSat track, so that the necessary...¨e and Hogan 2010) using the CloudSat cloud mask in the “2B... observed by the CloudSat satellite and temperature T along the CloudSat track provided... be discussed. A cloud classification using CloudSat and CALIPSO data is used... obtain Ze . The radar-only CloudSat product provides IWC from two.... 2005). Therefore, the ice-only CloudSat product rather than the standard... will be referred to as “CloudSat ice-only”. c. Empirical formula for... in dBZ; and T in ◦ C. The CloudSat products assume a different calibration for... the empirical formulas IWC(Z,T ). b. Standard CloudSat radar-only product The “Level... provided by the NASA CloudSat 3 A conversion from the CloudSat observed Ze to... value used to calibrate the CloudSat radar, which is the ferent... all wavelength bands is retrieved. CloudSat retrievals, even though the latter... cloud factor Ze from the CloudSat product 2B-GEOPROF, concontribute to... studies that make use of CloudSat and/or CALIPSO data (Bodas.../or lidar) observations with the CloudSat ice-only retrieval in Figure... VarCloud distribution in Figure 5(b), the CloudSat iceonly and VarCloud distributions are...) acknowledge possible violations in the CloudSat retrieval of their assumptions for... of IWC versus temperature for CloudSat ice-only, H06 IWC(Z,T ), and... be directly compared with the CloudSat ice-only retrieval as both... lower IWC values beyond the CloudSat ice-only minimum IWC of..., the H06 retrieval at the CloudSat sensitivity threshold of −28 dBZ... VarCloud-OA mean ratio. The CloudSat ice-only mean ratio with... −50◦C. The proximity of the CloudSat iceonly mean ratio with respect... , which is obtained from the CloudSat OA and VarCloud-SA retrievals... of VarCloud-OA, VarCloud-SA, CloudSat ice-only, or P07. The... as D2 − D 2 . (12) S= Since the CloudSat products are on a 240 m grid... calculated only when both the CloudSat iceonly product retrieves IWC > 0 and... vertical level nearest to the CloudSat level. To ensure a like-with... and 0.0939 log10 kg m−3 dBZ−1 . CloudSat ice-only and VarCloud show.... At these low reflectivities the CloudSat ice-only IWC retrieval has... is likely to occur. The CloudSat ice-only product deviates from...-lidar cloud-ice retrieval using CloudSat and CALIPSO measurements (Delano¨e and.... The official CloudSat data products are available at cloudsat.cira.colostate.edu and are provided by the NASA CloudSat... cloud microphysical parameters using the CloudSat millimeter-wave radar and temperature... global forecast model using simulated CloudSat radar reflectivities. J. Geophys. Res., 113... University. Stephens, G. L., et al., 2008: CloudSat mission: Performance and early science... the first year of merged CloudSat and CALIPSO data. J. Geophys. Res..., P. Partain, J. M. Haynes, and R. T. Marchand, 2008: CloudSat’s cloud profiling radar after two..., AIRS, MODIS, OMI, CALIPSO, and CloudSat. Geophys. Res. Lett., 36, L09.... Stephens, G. L., et al., 2002: The CloudSat mission and the A-Train. Bull.... 2006b; Protat et al. 2007) CloudSat IWC (Austin et al. 2009...-Rayleigh scattering regime. For the CloudSat product, “Parameterized Mie” uses Mie... 10 Height [km] 15 −2 10 −4 5 0 −6 (d) CloudSat ice−only IWC [log −3 10... 1200 1350 1500 Both Fig. 1. CloudSat observations from orbit 01126 and... the CloudSat radar. (c) IWC retrieved by VarCloud-OA. (d) IWC from the CloudSat... IWC(Z,T) −3 10 Probability density Temperature [°C] (a) CloudSat ice−only −80 −4 10 −5 10... retrieved by H06 at the CloudSat sensitivty threshold of −28 dBZ... −10 0 −7 10 VarCloud−OA all CloudSat ice−only −6 10 −5 −4 10 10... −10 0 −7 10 VarCloud−OA radar CloudSat ice−only −6 10 −5 −4 10 10...) and CloudSat ice-only (grey); (b) VarCloud-OA radar (black) and CloudSat ice... respect to H06 IWC −70 CloudSat ice−only P07 IWC(Z,T) −60... (grey). (b) As (a), but with product “R” CloudSat ice-only (black) and P07... from July 2006. 19 −70 CloudSat ice−only VarCloud−OA VarCloud... respect to H06 IWC −70 CloudSat ice−only VarCloud−OA VarCloud... respect to H06 IWC −70 CloudSat ice−only VarCloud−OA VarCloud... IWC 4 10 Reflectivity [dBZ] (b) 0 −10 CloudSat ice−only P07 IWC(Z,T) −20...-SA (grey). (b) As (a), but with CloudSat ice-only (black) and P07...