1. General Model Information
Name: Prototype Biomass and Evapotranspiration model
Main medium: terrestrial
Main subject: biogeochemistry
Type of model: not specified
Keywords: forest, vegetation growth, evapotranspiration, biomass, GIS, remote sensing
Dr. Stephen J. Maas
USDA-ARS Remote Sensing Research Unit
2413 East Highway
Phone: 512 969-4838
Fax : 512 565-6133
PROBE (Prototype Biomass and Evapotranspiration model) is a vegetation growth
and soils water-balance simulation model that includes an iterative numerical
procedure for incorporating remotely sensed information. The purpose of the
model is to assist resource managers in estimating regional evapotranspiration
and biomass production.
The model requires mean daily air temperature, humidity, wind speed and total
daily solar radiation as input data. Surface reflectance and temperature data
are required from remote sensing sources [e.g. Landsat Multi-Spectral Scanner
(MSS) or Thematic Mapper (TM) or NOAA's Advanced Very High Resolution
Radiometer (AVHRR)]. The model provides daily estimates of biomass production,
evapotranspiration and soil moisture. The model may be incorporated into a
Geographic Information System (GIS) for producing estimates of vegetation and
soil water-balance at regional scale (Maas et al., 1992).
Author of the abstract:
II. Technical Information
Operating System(s): DOS
Programming Language(s): Basic and ANSI Standard FORTRAN
III. Mathematical Information
Maas, S.J., Moran, M.S.,and Jackson, R.D., 1992.
Combining remote sensing and modeling for regional resource monitoring, Part II: A simple model for estimating surface evapotranspiration and biomass production. Technical Papers, ACPRS/ACSM/ RT92 Convention, 3-8 August 1992, Washington DC, pp. 225-254.
V. Further information in the World-Wide-Web
VI. Additional remarks
This model is one of only a few in this survey that use GIS and remotesensing data. Execution of the model is limited only by the available remotesensing information. This model addresses the USGCRP desire to integrate GISand models.
Last review of this document by: R. Patzak : 17. September 1997 -
Status of the document:
last modified by
Tobias Gabele Wed Aug 21 21:44:47 CEST 2002