Спутник ДЗЗ. ASCENDS. [Редактировать]

Дополнительные наименования

#НаименованияПоиск в новостяхПоиск в документах
1Active Sensing of CO2 Emissions over Nights, Days, and SeasonsНайтиНайти

Дополнительная классификация

#Наименования
1Все спутники ДЗЗ

Технические характеристики

#ХарактеристикаЗначение
1Полезная нагрузка 1xлидар CO2
2Полезная нагрузка 1xсенсор CO

Найдено 607 документов по запросу «ASCENDS». [Перейти к поиску]


Дата загрузки: 2017-02-06
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0.14/5
... with the large intestine, then ascends to the lung and throat... originates at shangyang (LI1) and ascends the dorsal surface of the... intestine. The superficial supraclavicular branch ascends the anterior lateral neck and... side of the great toe, ascends along the medial side of... spleen and stomach. The meridian ascends at a distance of 4.0 cun lateral... branch leaves the stomach and ascends internally past the diaphragm and... small intestine. The cardiac branch ascends internally paralateral to the esophagus... side of the little finger, ascends the ulnar side of the... intestine. The supraclavicular fossa branch ascends superficially along the lateral side... meridian at the cheek, and ascends to the medial canthus of... medial canthus of the eye, ascends the forehead to the vertex... the liver, the meridian/channel ascends past the diaphragm along the... with the eye, and then ascends to the vertex where it... portion of the meridian/channel ascends along the midline of the... the center of perineum, and ascends the midline of the abdominal... portion of this meridian/channel ascends from chengjiang (CV24), encircling the... from the pelvic cavity and ascends the spine to the throat...



Дата загрузки: 2016-12-24
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0.29/5
... Summary...................................................................................................................................... 5 1. Introduction .............................................................................................................................................. 6 1.1 The Decadal Survey.......................................................................................................................... 7 1.2 ASCENDS Workshop....................................................................................................................... 8 2. Science & Measurement Context ........................................................................................................... 8 2.1 Science... Measurement ...................................................................... 18 3. ASCENDS Science................................................................................................................................. 19 3.1 Core Science Enabled by ASCENDS ............................................................................................ 19 3.1.1 Changes... 3.3 Summary of ASCENDS Measurement Needs .............................................................................. 33 3.4 Near-Term ASCENDS Study Priorities........................................................................................ 35... CO2 Mission Concept Study............................................................................................... 44 4.4 ASCENDS Validation Strategy ..................................................................................................... 46 4.5 Near-term..................................................................................................... 70 Appendix F: Preliminary ASCENDS Traceability Matrix ................................................................ 74 Appendix G: ASCENDS Workshop Steering Committee... by ASCENDS. These investigations directly leverage the ability of the ASCENDS lidar... advance ASCENDS mission readiness include: • • Studies of the end-to end ASCENDS..., and moisture). Acceleration of critical ASCENDS technology development, including active remote... capabilities to support validation of ASCENDS measurements. An airborne instrument simulator... technology development activities to ready ASCENDS for a Phase A mission start. 1. Introduction..., and ASCENDS mission recommendation, followed by a description of the ASCENDS workshop organization... ASCENDS mission summary from the decadal survey is included as Appendix E. 7 1.2 ASCENDS Workshop The ASCENDS workshop was held July... errors caused by atmospheric scattering. 3. ASCENDS Science Workshop participants identified numerous... for ASCENDS can be rigorously quantified. 3.1 Core Science Enabled by ASCENDS Core science themes addressed by ASCENDS include: • Shifts... by ASCENDS. These investigations directly leverage the ability of the ASCENDS lidar... effect, breakout group participants discussed ASCENDS measurement needs. Regional spatial coverage... be considered drivers for determining ASCENDS mission measurement requirements. 3.2.1 Ecosystem Behavior... CO2 budget without over-constraining ASCENDS measurement requirements, breakout group participants... the decadal survey description of ASCENDS. The ASCENDS mission’s main contribution 31... quantify science measurement requirements for ASCENDS; however, some likely measurement requirements... measurement needs suggests the following ASCENDS mission attributes: • Orbits - All investigations... (e.g., EarthCare, ACE, ASCOPE) and whether ASCENDS science and measurement requirements may... time ASCENDS launches, workshop participants strongly recommended at least one ASCENDS ground... Priorities Workshop participants recognized that ASCENDS technology development and validation needs... capabilities to support validation of ASCENDS measurements. An airborne instrument simulator... 5. Potential Space Mission Synergies The ASCENDS mission will enable exploratory investigations... validation campaign participation, would improve ASCENDS science return. Participants recognized that.... 5.2 Planned Missions & Future Concepts Potential ASCENDS synergies were identified for international... Complementary Measurements or Contributions to ASCENDS Cloud properties Freeze/thaw measurement... advance ASCENDS mission readiness include: • • • Studies of the end-to end ASCENDS..., and moisture). Acceleration of critical ASCENDS technology development, including active remote... capabilities to support validation of ASCENDS measurements. An airborne instrument simulator... – Earth Observing System’s Afternoon Constellation ASCENDS – Active Sensing of CO2 Emissions... 1040, 1046, 1024 Breakout Session I - ASCENDS Scientific Goals & Requirements / Key Investigations... F: Preliminary ASCENDS Traceability Matrix Spatial Scale Temporal Scale ASCENDS Core Science ASCENDS Enhanced... day-only passive measurement Appendix G: ASCENDS Workshop Steering Committee Membership Anna...



Дата загрузки: 2017-01-04
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0/5
Ken Jucks, ASCENDS PS Earth Science Decadal Survey ... over Nights, Days and Seasons (ASCENDS) Mission Science Mission Architecture/Structure... space-based CO2 observations during ASCENDS operations impact Level 1 Requirements FY09... quantify ASCENDS science impact and define preliminary science measurement requirements •  Advance ASCENDS... existing validation network to validate ASCENDS, especially night measurements 2 Workshop recommendations... advance ASCENDS mission readiness: •  Studies of the end-to end ASCENDS system..., and moisture). • Acceleration of critical ASCENDS technology development, including active remote... capabilities to support validation of ASCENDS measurements. An airborne instrument simulator... considered a key part of the ASCENDS validation infrastructure 3 Science Justification and... Core science themes addressed by ASCENDS include: • Shifts in terrestrial carbon... by ASCENDS. These investigations directly leverage the ability of the ASCENDS lidar... latitudes and at night. The ASCENDS Baseline Mission would contribute to... that may involve active sensing. • ASCENDS initial study leads include the... Michalak 5 6 7 2008 Budget and Spending • ASCENDS workshop: • infrastructure for the workshop... perform the above tasks. 8 Other ASCENDS related investments ✦  ESTO ❑  ❑  GSFC activities... all invested internal funds into ASCENDS related technology development. • Primary activity... ASCENDS workshop web site to the public. •  http://cce.nasa.gov/ascends... based. • Prioritizes tasks for achieving ASCENDS science objectives and KDP/A preparedness... that their selections related to ASCENDS went toward highest priority investments... CO2 observations during ASCENDS operations impact Level 1 Requirements ❑  ❑  ASCENDS is intended to... of simultaneous passive CO2 observations ♦  ✦  ASCENDS requirements could focus on exploratory... change, day/night, etc. Overconstrains ASCENDS measurement requirements to continue and... overlap of ASCENDS and OCO observations (2013-2016 LRD for ASCENDS) ASCENDS LRD... ASCENDS Readiness ✦  Adapt existing efforts to more autonomous airborne demonstrators for ASCENDS...



Дата загрузки: 2017-04-08
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0.06/5
... Satellite Arctic-M N2 ROSKOSMOS / ROSHYDROMET ASCENDS Active Sensing of CO2 Emissions... and O2 LIDAR (ASCENDS), CO Type: Sun-synchronous Sensor (ASCENDS) Altitude: 450...: Ascending URL: cce.nasa.gov/ascends/index.htm MLS (EOS-Aura... for cloud droplets and precipitation. ASCENDS Proposed Atmospheric chemistry Measure the... radar (ACE) NASA CO Sensor (ASCENDS) Waveband: C-band: 5.405 GHz; HH... m Accuracy: CO2 and O2 LIDAR (ASCENDS) ASCENDS Proposed Lidars KOMPSAT-5 Operational Imaging... and O2 column absorption LIDAR (ASCENDS) NASA COSI Corea SAR Instrument...



Дата загрузки: 2017-03-10
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0.21/5
... system simulation experiment for the ASCENDS Satellite Mission ACPD 1 Universities Space... over Nights, Days, and Seasons (ASCENDS) satellite mission will provide greater... suited to make use of ASCENDS observations to constrain fluxes at... conditions. We find that the ASCENDS observations could potentially reduce flux... smaller than those from a global ASCENDS inversion on a coarser grid, demonstrating... over Nights, Days, and Seasons (ASCENDS) mission recommended by the US... to quantify the ability of ASCENDS column measurements to constrain CO2... at relatively high resolution. The ASCENDS active measurement concept offers unique... providing high precision and accuracy. ASCENDS will extend coverage through its... the regional scale using simulated ASCENDS data. Regional trace gas inversions... sampling and observation errors for ASCENDS and other input data fields... the constraint on fluxes that ASCENDS observations will provide, we did... preliminary results from a companion global ASCENDS OSSE. Section 4 discusses target and... well as other considerations regarding ASCENDS. Section 5 contains concluding remarks. Full... and random error characteristics for ASCENDS pseudo-data based on real... on 1 grids (NRC, 2007). The ASCENDS observations would likely also provide... expected to represent the basic ASCENDS CO2 data granule. The uncertainties.... Examples of the coverage of ASCENDS observations available for analysis and... for the two candidate wavelengths. ASCENDS provides dense coverage over the... those used in the global ASCENDS OSSE described in this paper... global OSSE uses the same ASCENDS dataset sampling and underlying observation... the greater spatial coverage of ASCENDS as compared to the in... of our analysis for the ASCENDS design. Hungershoefer et al. (2010... results (Fig. 11a), all tested ASCENDS cases would meet the minimum... of the information in the ASCENDS observations can be applied to... of multiple wavelengths in the ASCENDS measurements, e.g., various offsets from 1.57... 25 Other considerations in evaluating ASCENDS A regional CO2 observing system simulation... to control systematic errors in ASCENDS observations and the transport model... necessary to reduce the uncertainties. ASCENDS is promising in this respect... C budget uncertainty to a minor one. ASCENDS observations could specifically be used... for North America, using projected ASCENDS observation uncertainty estimates and a novel... levels. We find that the ASCENDS observations potentially reduce flux uncertainties... certainly be available alongside the ASCENDS data (e.g. from in situ networks... a satellite lidar system similar to ASCENDS, A-SCOPE, found that the 1.6 µm wavelength... global carbon sink and feedbacks, ASCENDS observations would meet a threshold requirement... Space program element and NASA ASCENDS Pre-Phase A activity funding. We..., and R. Menzies for contributions to ASCENDS data characterization, G. J. Collatz for making... definitively establish the usefulness of ASCENDS observations for constraining fluxes at...−6 ppmv−1 h Pa−1 ) for two candidate ASCENDS wavelengths. 168 These relate differential... Figure 4. Footprint319 mapsFigure for one ASCENDS measurement location (marked by black... Footprint maps for one simulated ASCENDS measurement location (marked by black... 500– 320 with star) January 1, ASCENDS 2007 at 18 UTC, integrated... m AGL range with two candidate ASCENDS weighting functions: for the CO2...



Дата загрузки: 2017-04-23
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0/5
... fluid conduit. As the bubble ascends the pressure increases until the... et al., 2003). The slug ascends in a similar manner to that... slug fragmenting and hence it ascends as a number of smaller slugs... of the slug as it ascends in the conduits. The right... the walls as the slug ascends and therefore the slug accelerates... velocity to fragment. It therefore ascends as an intact slug (for... at which point the slug ascends leading to a repetitive cycle of...



Дата загрузки: 2017-02-23
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0.1/5
..., G Ehret, P Flamant 1055h A42B-03 ASCENDS: Past, Present and Future: B Moore...-04 An overview of NASA’s ASCENDS Mission’s Lidar Measurement Requirements: J B Abshire... Dioxide from Space using the ASCENDS CarbonHawk Experiment Simulator: First Results... POSTER On the Ability of Ascends to Constrain Fossil Fuel, Ocean... from Airborne Lidar Measurements during ASCENDS Science Campaigns: J Mao, A K Ramanathan, M Rodriguez... the Oxygen A Band for the ASCENDS Mission: H Riris, M Rodriguez 1340h A43C... IPDA LIDAR for 2014 NASA ASCENDS Science Campaign: G R Allan, H Riris, W E Hasselbrack... A43C-3282 POSTER The 2014 ASCENDS Field Campaign - a Carbon Dioxide Laser...-Wave Lidar System During the ASCENDS 2014 Summer Field Experiment: B Meadows...



Дата загрузки: 2017-03-09
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0/5
... System Simulations in Support of ASCENDS Mission Requirements Definition ! S. R. Kawa*, D. F. Baker..., D. Crisp, and the ASCENDS Requirements Definition Team! •  ASCENDS Overview - instrument simulation •  OSSEs... Space Flight Center! May 7, 2014! ASCENDS! Space-based Lidar for Atmospheric...: N = 9306! Cumulative Fraction of Samples ASCENDS: N = 54423! Instrument Simulator 1.57 um...-16! 3 Coverage and Errors! •  Realistic ASCENDS random errors! •  Scaled globally using... reflectances! Cumulative Fraction of Samples ASCENDS: N = 54423! 1.57 um 2.06 um... detectable, likely attributable, with nominal ASCENDS precision.! •  Similar tests indicate:! Mapped... than “truth.” - assumed ASCENDS random error: 1 ppmv (@ 2.0 µm) ASCENDS Inverted Flux g m-2y-1 Schuh et al., 2014, in prep 6 New ASCENDS..., in prep 9 Observing Systems Comparison! ASCENDS vs. other CO2 measurements (% improvement... ASCENDS1.57 2 μm, ASCENDS µm,0.5 0.5ppm ppmv ASCENDS 1.57 μm, 0.5 ppm GOSAT •  ASCENDS provides large increase... bias compared to passive sensors! ASCENDS 2 μm, 0.25 ppm Baker et al... bias, JULY [ 10-8 kgCO2 OCO-2 ASCENDS bias form m-2sec-1] ¼x 0.25 ppmv... ASCENDS OCO-2 SZA bias Case #1 (SZA) ASCENDS ASCENDS Casebias #1 Signal Case #2 (SZA) (signal) ASCENDS ASCENDS Casebias #2 Case #3 Cloud (signal) (OD) ASCENDS... simulation experiments comprise a valuable framework –  ASCENDS data will be capable of... not negligible Next Steps •  Producing ASCENDS mission white paper for community...



Дата загрузки: 2017-03-10
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0.15/5
... Flight! HOPS HW Power Ratings (ASCENDS)! HOPS Collaboration! 2014 Flight Campaigns... address computationally intensive ASCENDS, ACE, and 3-D Winds algorithms.! •  ASCENDS: Active Sensing of... extremely high data processing rate.! –  ASCENDS: Replace time domain with frequency....! –  End-to-end demonstration with ASCENDS instrument on the DC-8 in... LaRC! ASCENDS algorithm lead! Dr. Bing Lin! Co-I! NASA LaRC! ASCENDS signal.... Edward Browell! Collaborator! NASA LaRC! ASCENDS algorithm support! Dr. Michael Kavaya... critical data processing requirements of ASCENDS and 3-D Winds, and further science... easy and efficient implementation of ASCENDS and 3-D Winds, and other similar... easy and efficient implementation of ASCENDS, 3-D Winds, ACE, and other similar... Out Sample Counts! Reduction Rate! ASCENDS! 8,388,608*! 24! 99.99...! Out = 179 peaks! * Twice the ASCENDS airborne requirement which is 4 Million...-time processing enabling science missions. (ASCENDS, 3D Winds (DAWN), and ACE...) 13 HOPS HW Power Ratings (ASCENDS)! LaRC SOA RT 1 GHz GPP...-HOPS HW)! •  * Lower bound running ASCENDS algorithm. 3-D Winds not shown due... •  LaRC science teams: ACES and ASCENDS! •  LaRC Engineering Directorate branches: Thermal... demonstration of HOPS COTS with (1) ASCENDS CarbonHawk Experiment Simulator (ACES) and... mixing ratios in support of ASCENDS! •  ACES provides two channels of... since 2005 in support of ASCENDS. Built jointly by LaRC and... fixed point per sample.! Algorithm! ASCENDS! Flight Hours*! ~ 11.7 hours! ~ 11...! ACES: ASCENDS CarbonHawk Experiment Simulator! ACT: Advanced Component Technology! ASCENDS: Active Sensing... onto HOPS! LaRC •  HOPS for ASCENDS!! 26 Mapping of Algorithm onto...



Дата загрузки: 2017-01-23
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0.1/5
... and second metacarpal bones, and ascends along the lateral anterior aspect... the red and white skin, ascends anteriorly to the medial malleolus... to the supraclavicular fossa and ascends to the neck. Travels up... 0.5 cun from the midline. It ascends diverging at the diaphragm, ending... to the nipple. It then ascends to the axillary fossa and... the supraclavicular fossa. It then ascends to the neck, running along... aspect of the ear. Then ascends to the corner of the... labial commissure in females. It ascends anteriorly to the public region... nape of the neck, and ascends to the vertex. Along the...