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SPDSS_Task53-1_Daily Climate Data Collection for HydroBase
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SPDSS_Task53-1_Daily Climate Data Collection for HydroBase
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4/17/2013 9:29:22 AM
Creation date
5/27/2008 10:25:05 AM
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Decision Support Systems
Title
SPDSS Task 53.1 - Daily Climate Data Collection for HydroBase
Description
This memorandum presents the general approach and results for the following Task 53 subtask: Collect/digitize daily data for temperature, precipitation, wind speed, solar radiation, and vapor pressure from approximately 20 existing data sources including CoAgMet and NCWCD climate stations. This memo was revised to correct the equation provided to convert NCWCD dew point data to vapor pressure for use in StateCU with the ASCE Standardized Evapotranspiration Equation.
Decision Support - Doc Type
Task Memorandum
Date
12/21/2004
DSS Category
Consumptive Use
DSS
South Platte
Basin
South Platte
Contract/PO #
C153954
Grant Type
Non-Reimbursable
Bill Number
SB01-157, HB02-1152, SB03-110, HB04-1221, SB05-084, HB06-1313, SB07-122
Prepared By
Leonard Rice Engineering
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path and name, selecting "Text File (*.txt)" for the file type and saving the file (Figure <br />8). <br />7. Close the window and return to the "Weather/ET Info" window and repeat steps 3 <br />through 6 with the remainder of the desired stations to download. <br />Several lines of headers (beginning with a date header, followed by the station description line <br />and six lines for the climate data titles and units) and footers (four lines of data statistics) are <br />included with the downloaded data. <br />The NCWCD climate data file includes fields not required for CDSS, such as the calculated daily <br />reference ET and calculated pan evaporation. Following are the fields containing data needed <br />for the CDSS efforts and the units as downloaded. <br />Field Data Type Notes <br />3, 4 Temperature Maximum and minimum temperatures. Units are degrees <br />Fahrenheit (F). <br />7 Dew Point Units are average degree Fahrenheit (F). <br />8 Precipitation Units are total inches (in). <br />9, 10, 11 Wind Maximum wind speed in miles per hour (mph), total wind run in <br />miles (mi), and average wind speed in miles per hour (mph). <br />12 Solar Radiation Units of Langleys. <br />Parameters regarding climate descriptions, including coordinates and elevation data, are not <br />available online at this time. Climate data available online is primarily available for the years of <br />1996 through 2003. According to the SPDSS Feasibility Study, several of the stations have data <br />for years prior to 1996, with some stations having data as far back as the 1970's. NCWCD is in <br />the process of compiling pre-1996 data and plans to post all the available data on the website by <br />July 2005. The contact for these efforts is Mark Crookstone at NCWCD headquarters. <br />The IDSCU consumptive use program, developed by Luis Garcia in conjunction with Colorado <br />State University, has the ability to query the NCWCD website directly. Rather than having to <br />download a single year of data for a given climate station, the IDSCU program automatically <br />collects all available years of data for a given station. The NCWCD website does not currently <br />offer this option. NCWCD does not plan to add this ability to the website. <br />Task 53 1.doc 7 of 14 December 21, 2004 <br />(Rev January 25, 2006) <br />
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