1 / 10

GPM Global Precipitation Measurement

GPM Global Precipitation Measurement. Reference Concept Eric Smith & Jim Adams ; NASA/Goddard Space Flight Center May - 2001. Brief GPM History. GPM Motivated by Highly Successful NASA/NASDA TRMM Program Easton, MD Workshop Convened (August-1998)

odette
Download Presentation

GPM Global Precipitation Measurement

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. GPMGlobal Precipitation Measurement • Reference Concept • Eric Smith & Jim Adams ; NASA/Goddard Space Flight Center • May - 2001

  2. Brief GPM History • GPM Motivated by Highly Successful NASA/NASDA TRMM Program • Easton, MD Workshop Convened (August-1998) • GPM (designated as EOS-9) recommended as principal systematic measurement of Global Water & Energy Cycle panel • GPM strongly endorsed by Applications panel • Discussions with NASDA and ESA Initiated • GSFC/JPL EOS-9 Post-2002 Mission Study (4/99) Conducted • initial plan for constellation orbits assumes 70 inclination • NASA HQ recommends exploring use of existing assets for constellation members (i.e., DMSP/SSMIS, GCOM-B1/AMSR-J, & NPOESS/CMIS) • constellation orbits changed to over-pole sun-synchronous inclinations to compliment DMSP & additional future sun-synch satellite data streams • Low Level GPM Concept Definition Initiated by GSFC, JPL, & MSFC • implement Integrated Mission Design Center (IMDC) and Team-X sessions • document measurement trade space • promote partnerships • explore data acquisition-processing-distribution-archiving concepts

  3. OBJECTIVES ∑ Understand Horizontal & Vertical Structure of Rainfall, its Microphysical Nature, & Associated Latent Heating ∑ Train & Calibrate Algorithms for Constellation Radiometers OBJECTIVES ∑ Provide Sufficient Sampling to Reduce Uncertainty in Short-Term Rainfall Accumulations ∑ Extend Scientific and Societal Applications GPM Reference Concept • Core Satellite • TRMM-Like S/C, NASA • H2-A Launch, NASDA • Non-Sun Synchronous Orbit • ~ 65° Inclination • ~450 km Altitude • Dual Frequency Radar, NASDA • Ku & Ka Bands • ~ 4 km Horizontal Resolution • ~250 m Vertical Resolution • Multifrequency Radiometer, NASA • 10.7, 19, 22, 37, 85, 150 GHz V&H • Constellation Satellites • Dedicated Small or Pre-existing Experimental & Operational Satellites with PMW Radiometers • Revisit Time • 3-Hour goal • Sun- & Non-Sun- Synch Polar Orbits • ~600 km Altitude • Global Precipitation Processing Center • Produces Global Precipitation Data Product Streams Defined by GPM Partners • Precipitation Validation Sites • Selected & Globally Distributed Ground- Based Supersites (Multiparameter radar, up looking radiometer/radar/profiler, raingages, & disdrometers) • Dense Regional Raingage Networks

  4. SSM/I Era TRMM Era EOS Era TRMM 1-day coverage GPM Era

  5. Near Term Satellite Data Streams forTRMM/EOSErasfrom Passive Microwave Radiometers & Precipitation Radars[at left are actual (bold) nodal crossing times (DN) or non-sun-synch labels ] ¨ Continuous Geosynchronous Satellite Coverage by GOES E/W, METEOSAT/MSG, & GMS Æ 86 90 03 CY 86-05 87 88 89 91 92 93 94 95 96 97 98 99 00 01 02 04 05 DMSP F8 F11 F13 SSM/I SSMIS DMSP F16 0530DN 0530DN DMSP F10 F12 F14 F15 (0915DN) SSM/I SSMIS MSU Æ AMSU-A DMSP F17 0830DN 0830DN NOAA-J NOAA-L 0830DN NOAA-N NOAA-D NOAA-K NOAA-M 0730DN MSU Æ AMSU-A TRMM (35∞ inc) NSS PR/TMI ADEOS II 0130DN AMSR AQUA 1030DN AMSR ¨ INSTRUMENTS KEY carries preferred PMW frequencies carries alternate PMW frequencies

  6. Projected & Potential Satellite Data Streams for GPM Erafrom Passive Microwave Radiometers & Precipitation Radars[at left are either actual (bold) or orthodox (paren) nodal crossing times (DN or AN) or non-sun-synch labels ] ¨Continuous Geosynchronous Satellite Coverage by GOES E/W, METEOSAT/MSG, & GMS Æ 03 CY 99-18 99 00 01 02 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 DMSP F13 SSM/I SSMIS CMIS DMSP F16 F18 F20 0530DN 0530DN NPOESS C3 (0530DN) DMSP F15 SSM/I SSMIS CMIS MSU Æ AMSU-A NOAA-N’ DMSP F17 F19 0915DN 0830DN NPOESS C1 (0830DN) NOAA-J NOAA-L NOAA-N NPP-ATMS NPOESS LITE-CMIS NPOESS C2 0730DN CMIS MSU Æ AMSU-A NOAA-K NOAA-M TRMM (35∞ inc) PR/TMI DPR/ATMI GPM Core (65∞ inc) Replacement Era NSS Gap ADEOS II AMSR AMSR-FO 1030DN Replacement Era GCOM-B1 (1030DN) AQUA Replacement Era GPM-1 (e.g., N-GPM1) AMSR-E CMR-1 0130DN (0230DN) Replacement Era GPM-2 (e.g., N-GPM2) KEY carries preferred PMW frequencies carries alternate PMW frequencies GPM-1,-2,-3,-4,-5 are dedicated GPM drone satellites (e.g., N-GPMx, I-GPM, E-GPM) (1430AN) CMR-2 GPM-3 (e.g., I-GPM) Replacement Era (1730AN) CMR-3 GPM-4 (e.g., E-GPM) Replacement Era (2030AN) CMR -4/ Ka-Band PR GPM-5 (e.g., new partner) Replacement Era (2330AN) CMR-5 Replacement Era MEGHA-TROPIQUES (22∞ inc) NSS MADRAS Replacement Era FY-3 TBD TBD

  7. Implementation of InternationalGPM Satellite Constellation 7 5 4 >3 <3 11 90% Global Revisit Time (Hours) 24 16 GPM Core DPR + ATMI TRMM PR + TMI 9 Megha Tropiques MADRAS 8 Euro-GPM E-CMR 7 Systematic Rainfall Measurement Italy-GPM I-CMR 6 Partner-GPM P-CMR 5 Number of Satellites ADEOS-II AMSR GCOM-B1 AMSR 4 AQUA AMSR NASA-GPM N-CMR NPOESS LITE/NPOESS CMIS 3 DMSP SSM/I NPOESS CMIS DMSP SSMIS 2 1 DMSP SSM/I DMSP SSMIS NPOESS CMIS 88 90 92 94 96 98 00 02 04 06 08 10 12 14 16 18 Years

  8. TRMM Era Constellation Coverage 3-hour sensor ground trace TRMM + DMSP(F14) + DMSP(F15)

  9. EOS Era Constellation Coverage 3-hour sensor ground trace TRMM + DMSP(F15) + DMSP(F16) + AQUA + ADEOS II

  10. GPM Systematic Measurement Coverage(Core + 9 constellation members) 3-hour sensor ground trace GPM Core + MEGHA-TROP + DMSP(F18) + DMSP(F19) + GCOM-B1 + NASA-GPM I + Euro-GPM I & II + Partner-GPM I & II

More Related