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Funded Research

Further Tests on a Modeling Framework to Detect and Analyze Changes in Land-to-Coastal Fluxes of Freshwater and Constituents

Vorosmarty, Charles: CUNY (Project Lead)

Project Funding: 2007 - 2010

NRA: 2006 NASA: Interdisciplinary Research in Earth Science   

Funded by NASA

Abstract:
Recent estimates made possible by improvements in remote sensing, GIS, data assimilation, and synthesis show that many of the changes unfolding across inland and coastal ecosystems are today detectable over continental-to-global domains. In this proposal we extend ongoing work to develop an integrated framework for analyzing the new system states. Three major advancements are targeted here, to: (i) establish within-basin geographies for multiple and interactive bioactive constituents; (ii) produce consistent time-varying (7-10 day composite) fluxes; and, (iii) explore the feasibility of an integrated inland-water / coastal zone surveillance system based on remote sensing from NASA and other agency satellites. We first focus on a set of Test Basins, emblematic of the major forces at work transforming modern river basin-coastal zone complexes. We then extend the work to the fully global domain in order to develop a geography of change to the major horizontal linkages joining land and ocean. Our principal technical goal is to develop a surveillance system that employs multiple platform, multi-resolution sensors. We have worked consistently toward this end, having developed models and data processing systems to analyze regional-to-global scale hydrology, suspended sediment transport, and fluvial delivery of bioactive nutrients to the coastal zone. Members of the study team are also pioneering remote sensing techniques to operationally monitor inland and coastal zone water quality. This proposal unites and enhances these resources into the Framework for Aquatic Modeling of the Earth System (FrAMES). We will consider fluxes of freshwater, suspended sediment, organic carbon and major nutrients and corresponding water-leaving radiances and derived products (chlorophyll, CDOM, optical density). We will document seasonal-tointerannual variability as well as episodic events coincident with recent multiple platform ocean color sensors (1997-present). We also plan to create a lessons-learned document to support future NASA mission planning in this arena.


2011 NASA Carbon Cycle & Ecosystems Joint Science Workshop Poster(s)

  • Monitoring coastal wetlands and near shore aquatic environments in response to the BP Horizon oil spill   --   (Susan L. Ustin, Shruti Khanna, Alexander Koltunov, Dar Alexander Roberts, Raymond Kokaly)   [abstract]

2008 NASA Carbon Cycle & Ecosystems Joint Science Workshop Posters

  • Modeling hydrological and biogeochemical fluxes from land to ocean through river systems: linkage of remote sensing, observations and models.   --   (Charles Vorosmarty, Wilfred Wollheim, Balazs Fekete, Joseph Salisbury, James Syvitski, Sybil Seitzinger, Christopher Milly, Steven Greb, Michel Meybeck, Bruce Peterson, John Harrison, Emilio Mayorga, Albert Kettner)   [abstract]

More details may be found in the following project profile(s):