A map service is the way that ArcGIS server makes maps available through the web to be used in many types of applications.
An image service is the way that ArcGIS server makes pixel-based imagery available through the web for use in many types of applications. Image services support on-the-fly processing such as symbology and raster functions. Learn more here.
A tiled or cached map or image service is a when a dynamic service has a pre-created cache which consists of many, many pre-made "pictures" of the service. The result is faster access for users as no processing is being performed on the server.
The opposite is dynamic map and image services have built-in capabilities where the user can change some of the layers behavior and appearance. For map services, symbology and other features are available. For image services, the user can change display, bands, stretches and more.
There are two ArcGIS Server URLs to use, depending on the type of data you need to connect to.
Use https://cteco.uconn.edu/ctmaps/rest/services to connect to thematic map services.
Use https://cteco.uconn.edu/ctraster/rest/services to connect to imagery and elevation.
Yes. Many GIS softwares can connect to the WMS version of the CT ECO map and image services. There are two ways to find the WMS address. The easiest way is to use the REST endpoints. Follow these instructions. The other way is to build the URL. Read how here.
2. Navigate the folders and locate the desired service
3. Find the WMS link in the upper left-hand corner
4. The WMS link opens an xml file that contains the full link to the WMS service. Copy the link and use it in the GIS software.
Some services also list WMTS which is a Web Map Tile Service. It behaves similar to WMS but accommodates tiled services.
The other way to find the WMS link is to build it. WMS links are constructed as
where FOLDER is the containing folder(s) such as Base_map and SERVICE is the same of the map service such as CT_Base_Map. For example:
where FOLDER is images and SERVICE is the name of the image service, such as NAIP_2008. For example:
Visit the map and image services page for a complete list of available services.
WMS Link Examples:
|Maps||WMS Map Service URL|
|Base Map/CT Base Map|
|Open Space/Protected Open|
|Soils/Inland Wetland Soils||https://cteco.uconn.edu/ctmaps/services/Soils/Inland_Wetland_Soils/MapServer/WmsServer?|
|Images||WMS Map Service URL|
|Ortho 2009 CRCOG||https://cteco.uconn.edu/ctraster/services/images/Ortho_2009_CRCOG/ImageServer/WMSServer|
|Ortho 2010 Coast||https://cteco.uconn.edu/ctraster/services/images/Ortho_2010_Coast/ImageServer/WMSServer|
|Ortho 2012||WMS: https://cteco.uconn.edu/ctraster/services/images/Ortho_2012/ImageServer/WMSServer|
Go to the CT ECO Map and Image Services page for CT ECO Data Guides and/or GIS metadata for each CT ECO service.
More than 15 datasets of orthophotography are available on CT ECO. There are many variables that make each dataset unique including:
Photography taken during the summer is generally referred to as "leaf on" orthophotography, and photography taken during the early spring is generally referred to as "leaf off" photography. Leaf off is captured immediately after the snow cover melts and before stream levels rise and leaves blossom on the trees. It is ideal for observing features on the ground surface in developed, open or wooded areas. The leaves on trees and shrubs that would normally obstruct the view from above during the summer are largely absent in the early spring, allowing for the observation of features such as stone walls, roads, and structures in wooded areas, lawns and yards.
Refer to Connecticut Digital Orthophotography for a list and brief description of orthophotography available from CT ECO.