Iowa Environmental Mesonet
Iowa State University Department of Agronomy
OGC Web Services
The Open Geospatial Consortium, Inc (OGC) is a standards organization leading the development of geospatial and location based services. The OGC has adopted a number of specifications, some of which are used by the IEM. This page lists these services.
Tile Map Service (TMS)
This service makes for easy integration with web mapping applications like OpenLayers and Google Maps. Here is an example for Google Maps:
var tileNEX = new GTileLayer(null,null,null);
tileNEX.getTileUrl = function(tile,zoom) {
/* Include date at the end as a cachebuster */
return "http://mesonet.agron.iastate.edu/cache/tile.py/1.0.0/nexrad-n0r-900913/"
+ zoom + "/" + tile.x + "/" + tile.y +".png?"+ (new Date()).getTime();
};
tileNEX.isPng = function() { return true;};
tileNEX.getOpacity = function() { return 0.5; }
var layer4=[G_NORMAL_MAP.getTileLayers()[0],tileNEX];
var custommap4 = new GMapType(layer4, G_SATELLITE_MAP.getProjection(), "Nexrad", G_SATELLITE_MAP);
map.addMapType(custommap4);
The nexrad-n0r-900913 is the layer name and represents the "current" composite base reflectivity. There are also these other layers available from the TMS:
- nexrad-n0r-900913-m05m: Composite 5 minutes old
- nexrad-n0r-900913-m10m: Composite 10 minutes old
- nexrad-n0r-900913-m15m: Composite 15 minutes old
- nexrad-n0r-900913-m20m: Composite 20 minutes old
- nexrad-n0r-900913-m25m: Composite 25 minutes old
- nexrad-n0r-900913-m30m: Composite 30 minutes old
- nexrad-n0r-900913-m35m: Composite 35 minutes old
- nexrad-n0r-900913-m40m: Composite 40 minutes old
- nexrad-n0r-900913-m45m: Composite 45 minutes old
- nexrad-n0r-900913-m50m: Composite 50 minutes old
Web Map Service (WMS)
A WMS defines a protocol for web based retrieval of geodata in raster map format. If you are interested in the capabilities XML file, simply add "VERSION=1.1.1&REQUEST=GetCapabilities&SERVICE=WMS&" to the URI string.
- CONUS GOES Infrared Satellite
http://mesonet.agron.iastate.edu/cgi-bin/wms/goes/conus_ir.cgi? - CONUS GOES Visible Satellite
http://mesonet.agron.iastate.edu/cgi-bin/wms/goes/conus_vis.cgi? - GOES East infrared imagery
http://mesonet.agron.iastate.edu/cgi-bin/wms/goes/east_ir.cgi? - GOES West infrared imagery
http://mesonet.agron.iastate.edu/cgi-bin/wms/goes/west_ir.cgi? - GOES East visible imagery
http://mesonet.agron.iastate.edu/cgi-bin/wms/goes/east_vis.cgi? - GOES West visible imagery
http://mesonet.agron.iastate.edu/cgi-bin/wms/goes/west_vis.cgi? - CONUS NEXRAD Base Reflectivity (n0r)
http://mesonet.agron.iastate.edu/cgi-bin/wms/nexrad/n0r.cgi? - Historical CONUS NEXRAD Base Reflectivity [WMS-T] (n0r)
http://mesonet.agron.iastate.edu/cgi-bin/wms/nexrad/n0r-t.cgi? - CONUS NEXRAD 1 Hour Precipitation (n1p)
http://mesonet.agron.iastate.edu/cgi-bin/wms/nexrad/n1p.cgi? - CONUS NEXRAD Storm Total Precipitation (ntp)
http://mesonet.agron.iastate.edu/cgi-bin/wms/nexrad/ntp.cgi? - NWS Current Warnings
http://mesonet.agron.iastate.edu/cgi-bin/wms/us/wwa.cgi? - Iowa Rainfall Estimates
http://mesonet.agron.iastate.edu/cgi-bin/wms/iowa/rainfall.cgi? - Iowa Winter Road Conditions
http://mesonet.agron.iastate.edu/cgi-bin/wms/iowa/roadcond.cgi?
Layer: roadcond-noninterstate Non Interstate Road Conditions
Layer: roadcond-interstate Interstate Road Conditions
Web Feature Service (WFS)
A WFS is a service that provides geodata as simple features in Geography Markup Language (GML).
- National Weather Service Warnings Current
http://mesonet.agron.iastate.edu/wfs/ww.php? - National Weather Service Warnings Archive (since 11 Jul 2002)
http://mesonet.agron.iastate.edu/wfs/ww.php?date=YYYY-MM-DD&