Posts tagged wms
One of the advanced features of Depiction is its ability to bring in data and images from WMS sources. But WMS formatting is a bit esoteric and I am still trying to figure it out. However, I had a customer recently tell me how NexRad ridge radar was very valuable to them. So I started a search on the interenet and I found a couple of promising sites.
There is this site which lists several WMS services. http://trac.osgeo.org/openlayers/wiki/AvailableWMSServices
However of all the sources give I only had success getting one to work so far.
If you go to the Add Menu and enter this URL and select WMS and then hit the show content buttons you will get a list of layers. I chose the first one
I then selected Auto Detect and hit the add button.
And this was the result
Then after a bit more searching, I found this site.
They list several WMS sources but I chose this one and entered the URL in to the add menu.
This time I chose the last layer listed and got this image.
It should be noted that all of these images are snapshots as of the time you grab them. You can continue to grab new snapshots and each one will come in as a separate image in a new revealer.
I as of yet don’t fully understand what all of the layers are. Maybe some of you that are more familiar with the NEXRAD service can enlighten the rest of us. I will continue to try and educate myself about WMS and these sources but in the meantime, I thought that those of you that are interested in current weather might be interested in these. It would be great if any of you could add to this knowledge by making posts to the support page telling what you found out. Put the info in as an idea. http://www.depiction.com/support
A customer asked if I knew of any sources for current hurricane info, so I did a search for “hurricane prediction WMS” and found this: http://nowcoast.noaa.gov/help/mapservices.shtml?name=mapservices
On the site, NOAA provides a set of Web Mapping Services (WMS) for
- Observations: http://nowcoast.noaa.gov/wms/com.esri.wms.Esrimap/obs?service=wms&version=1.1.1&request=GetCapabilities
- Watches, Warnings & Advisories: http://nowcoast.noaa.gov/wms/com.esri.wms.Esrimap/wwa?service=wms&version=1.1.1&request=GetCapabilities
- Analyses: http://nowcoast.noaa.gov/wms/com.esri.wms.Esrimap/analyses?service=wms&version=1.1.1&request=GetCapabilities
And more! Each services includes map layers for:
- World Countries
- World Rivers
- World Lakes
- Major Roads
- Airport footprints
Being a WMS, all of the sources come into Depiction as images, so they will fill up your entire depiction area. Most of these will work better with large areas. You can put the links provided above (one at a time) into the Web serivces tab of the Add Content menu in Depiction, selecting the WMS option (see image). When you click Show content, you can then select the layer you want to view. You can do this multiple times with the same source or separate sources in the same depiction.
Let us know if you have any questions!
UPDATE: There are also shapefiles of Hurricane Earl available from NOAA. Current predictions are here–the one you’ll want is the last ZIP file in the list. And the ‘cumulative wind history’ of Earl is here. It looks like NOAA will be keeping these up to date as time goes on. George will be using these shapefiles in the Depiction 101 webinar tomorrow morning.
We’ve had several inquiries about looking at data related to the Haiti earthquake in Depiction. Our video showed how easy it is to get basic earthquake data into Depiction–and you can now view a related depiction online–but what most people are concerned about at the moment is the recovery situation.
There is now a great resource for that kind of data that can be easily loaded into Depiction. CubeWerx and the Carbon Project have put up two different web services with data relating to Haiti and the earthquake. One is a WMS, which brings in images, and another is a WFS that brings in shapes and point data–including building locations, building footprints and more.
To add these into a depiction, just go to Add>>Web service, paste the URL into the field, note which type of service you are using, and hit Show content. That will load up a menu of the different layers included in the service, which you can add as various element types.
Much of this data comes from OpenStreetMap, which has been doing incredible work mapping the situation there. Depiction tiling & Quickstart already brings in some of the data included in these services, such as road networks, but most of it is unique. Here’s what just a very quick use of the WFS gave us:
UPDATE: Many more WMS feeds are available here.