An Integrated Assessment of the Pan-Arctic Freshwater System: Analysis of Retrospective and Contemporary Conditions Vorosmarty- UNH Lammers- UNH Serreze-

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Presentation transcript:

An Integrated Assessment of the Pan-Arctic Freshwater System: Analysis of Retrospective and Contemporary Conditions Vorosmarty- UNH Lammers- UNH Serreze- UC Steele- UW Zhang- UW

Arctic-RIMS: A Regional, Integrated Monitoring System for Pan-Arctic Water Cycle Studies GOALS –Characterize Variability in Land-Atmosphere Water System (from 1960-) –Assess Response of Ocean –Identify Sources of Change –Develop Real-Time  Detection System for Pan-Arctic Water Cycle Collaboration of UNH, CU, UW, JPL, SHI, AARI, Ohio St., UDel

Framework for the Enhanced ArcticRIMS Data and Model Integration System “Tracking the Water” RIMS Schematic Tracking the water - Atmosphere, ocean and land - interdisciplinary - multiple data sets - real-time estimates - some redundancy

Domain of the E-RIMS, with some key data sets and proposed products. Runoff contributed from the pan-Arctic land mass is mapped together with variability in the Arctic Ocean. Note plumes of low salinity water associated with inflow through Bering Strait and large river basins of Eurasia and N. America. These anomalies will be analyzed and tracked to "source areas" within the linked atmosphere, land, ice, and ocean system. Gridded fields, basin-specific and pan-Arctic aggregations are planned as operational products. River temperature (lower right) from Russia is one of several new data sets to be incorporated into E-RIMS, in this case supplying an important boundary condition to the ocean model that estimates outflow through the Fram Strait (lower left). A real-time component, expanding our existing hydrographic and NWP archive (top right), is proposed. Through analysis of historical time series, contemporary changes to the Arctic water cycle are placed into broader context. Location of RIMS historical and operational hydrographic stations are shown. E-RIMS Source data: Mark Serreze (CU), Mike Steele (UW), UNH, and government agencies from around the pan-Arctic River Discharge - enhanced effort - Ability to link land and ocean processes - increase conversations between scientists - Temperature data ArcticRIMSR-ArcticNET E-RIMS FRAMEWORK FOR COUPLED PAN-ARCTIC LAND-OCEAN-ATMOSPHIRE STUDIES

E-RIMS DATA SYSTEM Coordinated Geospatial Data Sets On-screen Roving Data Mining Tool Multi-Dimensional Queries Archival, Real-Time Station Data and Gridded Fields Web-based w/ On-line Data Downloads

E-RIMS REAL-TIME HYDROGRAPHS Collaboration of several agencies Mouth of river emphasized for land-ocean flux studies Provisional data w/ reanalysis

RIMS Real-Time Gauges - Real-Time data - monitoring (first look at hydro cycle) - source of comparison for near-real time models Real-Time River Discharge Monitoring

Russian Data Flow to the Arctic and Antarctic Research Institute (AARI) Russian Data Flow - data collected and passed on to regional Roshydromet offices - FAX, or teletype to AARI - AARI then does data harmonizing QC data, winter corrections and puts data on web - UNH scoops it and harmonizes with RIMS

Critical but Uncertain Pathway: Atmospheric Net Convergence on Land Dominates Budget Closure Disparity Large -- Land 1700 km 3 y Ocean 2800 km 3 y -1