Developing Consistent Earth System Data Records for the Global Terrestrial Water Cycle
Abstract
Here we present the progress on the NASA MEaSUREs project "Development of Consistent Earth System Data Records for the Global Terrestrial Water Cycle", whose goal is to derive global, long term, consistent Earth System Data Records (ESDR) for terrestrial water cycle states and variables by updating and extending existing observational and modeled datasets of long-term hydrologic fluxes and states. This requires a global reanalysis that uses improved algorithms and newly available satellite data sets of radiation, precipitation, evapotranspiration, and soil moisture. The analysis is extended to reflect the effects of global water management, by incorporating reservoir storage and irrigation. Since its start in 2008 the project has progressed as planned and is entering the full-scale data production/delivery stage. The ESDR's being produced and delivered include (1) Global high resolution land surface model forcing fields for 2000-2008 (planned: 1950-2008); (2) VIC model derived land surface states/fluxes for 2000-2008 (planned: 1950-2008); (3) Global satellite radiation fields 2000-2007 SW and LW fluxes from geostationary and polar orbiting satellites GEO (planned: 1950-2007)); (4) Global water management ESDR (storage estimated for North America and global reservoir inputs being compiled); (5) Global satellite soil moisture (2002-2011 completed for AMSR-E (1998-2011 are being processed for TMI); (6) Global satellite ET (1983-2008 finished with ISCCP/SRB forcing inputs); and (7) Global satellite precipitation. A web infrastructure has been established and tested to communicate and distribute the large amount of data and documentations/metadata to the community. The infrastructure for the delivery and archival of the ESDRs at the NASA DAAC is being prepared.
- Publication:
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AGU Fall Meeting Abstracts
- Pub Date:
- December 2011
- Bibcode:
- 2011AGUFMIN21A1408P
- Keywords:
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- 1655 GLOBAL CHANGE / Water cycles;
- 1876 HYDROLOGY / Water budgets