Scientific Investigations Report 2006–5318
U.S. GEOLOGICAL SURVEY
Scientific Investigations Report 2006–5318
obs_dpm.f
Module declares and reads for each day the observed values used in the model.
The observed data input module that is based on obs_ti_prms.f (as currently in MMS) of Leavesley and others (1983) and as modified by Mastin and Vaccaro (2001). For this module, some of the types of observed data have been eliminated and other types have been added. For example, pan evaporation has been eliminated and throughfall was added.
July, 2004
none
runoff
Observed runoff for each gage, in cubic feet per second.
bsflw
Estimated baseflow for each gage, in cubic feet per second.
thrufall
Fraction of total precipitation at gage that is throughfall, in decimal fraction of precipitation.
precip
Observed precipitation at each rain gage, in inches.
tmin
Observed minimum temperature, in degrees Fahrenheit.
tmax
Observed maximum temperature, in degrees Fahrenheit.
solrad
Observed solar radiation, in langleys.
snow
Observed snow pillow/course data, in inches.
none
The module first declares the observed input variables in the declare part of the module. The variables are described above. There is no initialization part of the module. Therefore, the run part of the module is entered after MMS’s initialization process to read in (input) the observed values for the day for each site.
For the case of missing daily values of precip, the value can be set to less than zero (0), for example, -1.0, and calculations using this site will be skipped for the day.
For the case of missing daily values of either tmin or tmax, the value can be set to -99.0 or less, and the calculations for either tmin or tmax for this site will be skipped for the day.
Bauer, H.H., and Vaccaro, J.J., 1987, Documentation of a deep percolation model for estimating ground-water recharge: U. S. Geological Survey Open-File Report 86-536, 180 p.
Leavesley, G.H., Lichty, R.W., Troutman, B.M., and Saindon, L.G., 1983, Precipitation-runoff modeling system: User’s manual: U.S. Geological Survey Water-Resources Investigations Report 83-4238, 245 p.
Mastin, M.C., and Vaccaro, J.J., 2001, Documentation of precipitation runoff modeling system modules for the modular modeling system modified for the watershed and river system management program: U.S. Geological Survey Open-File Report 02-362. http://water.usgs.gov/pubs/of/ofr02362/
Mark C, Mastin and John J. Vaccaro
U.S. Geological Survey
Washington Water Science Center
934 Broadway, Suite 300
Tacoma, WA 98402
Modified by:
Mark C, Mastin and John J. Vaccaro
U.S. Geological Survey
Washington Water Science Center
934 Broadway, Suite 300
Tacoma, WA 98402
Telephone: 253-552-1620
Fax: 253-552-1581
Email: jvaccaro@usgs.gov