ALEXI Regional Fluxes
for the IHOP 2002 Domain

The IHOP Field Experiment was conducted 13 May to 25 June 2002 in the south-central United States. In continuing support of this field experiment, the ALEXI model is being run daily over the IHOP domain at a horizontal resolution of 5km; output flux predictions for the previous day are typically available by 04 UTC.

Input data fields of temperature, pressure, and atmospheric moisture are generated through analyses of hourly weather data (i.e. the METARs), and the CIMSS Regional Assimilation System (CRAS) forecast model. Fractional vegetation cover is estimated from the USGS EROS AVHRR 1km bi-weekly NDVI product. All radiometric data (longwave, shortwave and thermal) are from the GOES-08 Imager instrument. Cloud detection fields are produced by the NOAA Advanced Products Team within CIMSS at UW-Madison.

This portion of the ALEXI project at the University of Wisconsin-Madison (UW) is funded by the National Science Foundation with investigators at the Pennsylvania State University. Other funds for this work come from grants through NASA and NOAA at UW.

ALEXI model fields:

Latent heat - precipitation comparisons:

Flux climatology:

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