Richey, Jeffrey (Jeff): School of Oceanography (Project Lead)
Project Funding:
2007 - 2010
NRA: 2006 NASA: Interdisciplinary Research in Earth Science
Funded by NASA
Abstract:
The work proposed here is to investigate the connectivity of the landscape to the sea, across Mainland and Insular Southeast Asia, through assessing the dynamical controls on the mobilization of water and particulate and dissolved materials from land to and through river systems. A basic premise is that the understanding of regional scale processes requires the higher resolution of information now possible with contemporary satellite data, process-based models, and field measurements. Our research objectives are to (1) Examine the interactions of landscape structure and climate on water distributions and the production of sediment (by extending our current 10-km resolution model of the Mekong across the region, and developing high resolution models of selected Mekong sub-basins, for scaling and testing, by describing surface forcing for the new model domains through a multi-scaled climate model, and deriving a new sediment flux model).
(2) Examine the interactions of landscape structure, productivity and water on downstream trends in fluvial biogeochemistry (by modeling NPP of the landscape through enhancement of the basic hydrology model compared to MODIS products, using that model to drive an enhanced land/water biogeochemistry model validated through measurements from the field and remote sensing, and using this model to drive analysis of the Tonle Sap, including active and optical remote sensing to assess inundation extent and seasonal compositions of water parameters. (3) Compute fluvial inputs to the South China Sea. (4) Finally, we will utilize the assembled information to participate in regional assessments of ecosystem goods and services.
2008 NASA Carbon Cycle & Ecosystems Joint Science Workshop Posters
- Carbon Pathways through Tropical River Systems: From Small Streams to the Oceans (Lessons from the Amazon and Mekong)
-- (Jeffrey E. Richey)
[abstract]
[poster]
More details may be found in the following project profile(s):
