JPL PO.DAAC- ESIP
Web Mapping Server (WMS) Interface
Web Mapping Server (WMS) Interface
This page describes the Web Mapping Server (WMS) interface - a quick method of visualizing subsets of PO.DAAC data from a standard browser or from a WMS-compatible viewer. Most users will prefer the user-friendly interface provided by POET. However, by modifying the sample http calls below, users can bypass that interface to directly view single maps. The interface relies on the standard WMS protocol for transferring georeferenced images over the internet. This standard allows maps from multiple sources to be overlayed. Images are returned directly to your browser (or other client) when requested using a URL string such as in the examples below. The text further down the page describe how to modify this URL string to obtain other products.
Example URL strings that were used to generate the images to the right:
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Parameter Information
The following parameters may be appended to the URL string http://podaac-esip.jpl.nasa.gov/cgi-bin/esip/de.pl? as in the above examples.
| PARAMETER | POSSIBLE VALUES | DESCRIPTION |
| BBOX | lon1, lat1, lon2, lat2 | Bounding longitude and latitude range |
| LAYERS | ssh | Sea Surface Height Residual |
| swh | Significant Wave Height | |
| sst | Sea Surface Temperature | |
| ssta | Sea Surface Temperature Anomaly | |
| wind | Ocean Wind | |
| wind_mag | Speed of wind | |
| wind_zonal | Zonal Speed of wind | |
| wind_merid | Meridional Speed of wind | |
| wind_div | Divergence of wind | |
| windstress | Wind Pseudo-stress | |
| windstress_mag | Magnitude of windstress | |
| windstress_zonal | Zonal windstress | |
| windstress_merid | Meridional windstress | |
| windstress_curl | Curl of windstress | |
| current | Surface current | |
| current_zonal | Zonal speed of surface current | |
| current_meridional | Meridional speed of surface current | |
| current_mag | Speed of surface current | |
| landmask | Land Mask | |
| TIME | YYYY-MM-DD | (Optional) Date of measurement. If excluded, last available date is returned. |
| INSTRUMENT | For sst: mcsst, pathfinder, modis, goes, or reynolds. For wind: ers1, ers2, nscat, qscat. For ssh: topex |
(Optional) Measurement instrument. |
| FORMAT | GIF, JPG, GeoTIFF, or PNG | Image format |
| WIDTH | integer | Image width in pixels |
| HEIGHT | integer | Image height in pixels |
| SRS | 4326 | Map Projection (4326 is equal angle grid) |
| REQUEST | GetMap or GetCapabilities | Return a map or list of options |
| STYLES | No style options currently available | |
| BGCOLOR | Hex, e.g. 0x33333 | (Optional) Background color of image |
| TRANSPARENT | true or false | (Optional) Set background transparent |
| MINVALUE | value | (Optional) Minimum plot value on color bar |
| MAXVALUE | value | (Optional) Maximum plot value on color bar |
An xml version of the above information is contained in the Capabilities file.