This resource is limited and may not work well if too many people access it at the same time.īrief Documentation of DD Map Construction Please do not use or advertise this tool if you have no real interest in pest management or crop production. Also, since 2005, this tool has been configured to work with handheld PDAs and Cellphones in the field (for this we recommend "tiny" for map size). We have combined real-time weather data, a degree-day calculator, PRISM climate mapping, GIS analysis, and online map publishing capabilities into a web-based tool.
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An optional third step is to download the resulting ascii GIS data with limited metadata, ready to unzip and load into a compatible GIS (tested with ESRI ARCGIS and GRASS GIS 5.x and 6.x).īack to US Degree-day Mapping Calculator. Making a degree-day map is now a 2-step process: 1) Select settings and click MAKE MAP (be prepared to wait up to several minutes), and 2) Click GRASSLinks "GO" for interactive GIS interface to degree-day maps. In addition, historical average data from thousands of stations are available for Historical Average DD Maps. They are derived from accumulated and near real-time temperatures from AGRIMET, Hydromet, National Weather Service, RAWS, SNOTEL, CWOP and certain grower networks, PRISM temperature maps, and degree-day calculations from up to 12,000+ sites in the coterminous USA. These degree-day maps are custom made according to inputs you specify. US Degree-Day Mapping Calculator and Publisher Documentation - US Degree-Day Mapping Calculator Oregon IPM Center at OSU