West-wide and East-wide Seasonal Hydrologic Prediction Systems PI (West): Dennis P. Lettenmaier (U. of Washington) PI (East): Eric F. Wood (Princeton University) Primary Contributors: Andy Wood (UW) Lifeng Luo (Princeton) Others: Nathalie Voisin (UW), Ted Bohn (UW), Ali Akanda (UW), George Thomas (UW), Justin Sheffield (Princeton) NOAA CPPA Principal Investigator’s Meeting Aug.14-16, 2006
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West-wide and East-wide Seasonal Hydrologic Prediction Systems
West-wide and East-wide Seasonal Hydrologic Prediction Systems PI (West): Dennis P. Lettenmaier (U. of Washington) PI (East): Eric F. Wood (Princeton University) Primary Contributors: Andy Wood (UW) Lifeng Luo (Princeton) - PowerPoint PPT Presentation
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West-wide and East-wide Seasonal Hydrologic Prediction Systems
PI (West): Dennis P. Lettenmaier (U. of Washington)PI (East): Eric F. Wood (Princeton University)
Primary Contributors: Andy Wood (UW)Lifeng Luo (Princeton)
Others: Nathalie Voisin (UW), Ted Bohn (UW), Ali Akanda (UW), George Thomas (UW), Justin Sheffield (Princeton)
NOAA CPPA Principal Investigator’s MeetingAug.14-16, 2006
- shorter lead forecasting (15 day)- drought monitoring
4)External Interactions
Topics
CPPA vision: improve operational intraseasonal to interannual climate prediction and hydrological applications.
CPPA land-atmosphere interaction science objectives: (1) improve understanding and simulation of coupled land-atmosphere
processes through observation, data analysis, and modeling studies; (2) determine the influence of land-atmosphere processes on intra-seasonal to
interannual climate predictability; and (3) use this knowledge to advance operational forecasts, monitoring, and
analysis.
The two projects target the CPPA goal of improving the scientific basis for operational hydrologic forecasts through use of NOAA (and other) climate forecasts and data products.
Governing CPPA Science Objectives
The west/east hydrologic forecast systems are founded on almost a decade of NOAA funded development
LDAS project VIC development, implementation for LDAS region, and 50 year
retrospective (Mitchell et al., 2004; Maurer et al., 2002)
OGP GCIP/GAPP developed approaches for using NCEP seasonal climate model
forecasts (Ohio River basin and East Coast)
CDEP/ARCS extension of retrospective simulations to 1915; expansion of
forecast activities to westwide domains; exploration of shorter lead forecasts
NOAA OHD offered a letter of support for the current projectNASA funding has also played a role (NSIPP/GMAO)
Background
West-wide System
2004
2005
2006
West Side (Washington)
East Side (Princeton)
East-wide System
Research Objectives
1) To understand the predictability of the hydrological cycle at medium range and seasonal-to-interannual timescales
2) To develop the seasonal / medium range hydrological prediction capability for the U.S.
3) To develop the real-time drought monitoring capability for the U.S.
4) Test and implement improved data assimilation methods for both in situ and remotely sensed data
5) Various applications related goals, e.g., link to reservoir system models for reservoir contents analysis
Both Systems
Soil MoistureState
SnowpackState
Both Systems
VIC
Streamflow Routing NetworkBoth Systems
1/8 degree,Ohio R. basin
UW Forecast Approach Schematic
NCDC COOP station obs.
up to 3 months from
current
local scale (1/8 degree) weather inputs
soil moisturesnowpack
VIC Hydrologic model spin up
SNOTEL
Update
streamflow, soil moisture, snow water equivalent, runoff