Current metadata support

In the image service definition (.ISDef) file the following metadata tags are defined and used by default.

Node	Type	Description
Title	String	Title given to the image service. This is generally different but related to the name. It is similar to the FGDC: metadata/idinfo/citation/citeinfo/title.
Edition	String	Edition of the image service—similar to a version number. It is similar to the FGDC: metadata/idinfo/citation/citeinfo/edition.
Identifier	String	Unique ID for the image service and version number. If the image service is changed, this value should also be changed. May be used by applications to track the lineage of an image service.
GeoRegion	String	Geographic region, such as town, state, or country. Assists clients in selecting an image service.
PixelUnit	String	Description of the pixel values. The default list provides some examples, including True Color; False Color; NDVI Legend; Radiance; Elevation m; and Elevation ft. Other values can be entered.
PixelSource	String	Source from which the pixel values are obtained. This is generally the sensor type or original source. The default list provides some examples, including Aerial Photography; Landsat; QuickBird; Scanned Maps; SRTM; and Mixed. Other values can be entered.
ProcessSum	Memo	Summary of the processing applied by the image service to the raw imagery.
Abstract	Memo	Abstract about this image service.
Purpose	Memo	Purpose of the image service.
Originator	String	Originator of the image service.
Publisher	String	Publisher of the image service.
Rights	String	Owner or owners of the rights to the data and image service.
ContactOrg	String	Contact organization for the image service.
ContactPer	String	Contact person for the image service.
TimePeriodBegin	Date	Date of the first image added in the image service.
TimePeriodEnd	Date	Date of the last image added in the image service.
ServiceCreationDate	Date	Date the image service was created.
ServiceCreationTime	Time	Time the image service was created.

There are no defined standards for the raster metadata—which depends only on the raster type generator. However for ArcGIS Image Server clients to view consistent metadata, the table below lists the suggested standards. Using standards can be advantageous when defining tags used as raster attributes, because it simplifies the process of having the tags added to the source tables if they have the same names.

Node	Type	Description
GenTime	String	Generation time.
SatId	String	Satellite ID information.
CatalogId	String	Vendors catalog ID for the raw data used in this product.
SceneId	String	Identifier for the scene within the strip referenced by this product.
SunAzimuth	Float	Azimuth angle of the sun measured from north, clockwise, in degrees. This is measured from the scene center, corresponding to the center pixel of the image.
SunElev	Float	Elevation angle of the sun from horizontal, in degrees. This is measured from the scene center, corresponding to the center pixel of the image.
SatAzimuth	Float	Azimuth angle of the satellite with respect to the center of the image, in degrees.
SatElev	Float	Elevation angle of the satellite with respect to the center of the image, in degrees.
IVAngle	Float	The dihedral angle measured at the spacecraft from the nominal spacecraft YZ plane to the plane that contains the ground projection of image center and the spacecraft y-axis, in degrees. A positive angle indicates the sensor is looking forward.
CVAngle	Float	The dihedral angle measured at the spacecraft from the nominal spacecraft XZ plane to the plane that contains the ground projection of the image center and the spacecraft x-axis, in degrees. A positive angle indicates the sensor is looking to the right.
OVAngle	Float	The spacecraft's elevation angle, measured from nadir to the image center, as seen from the spacecraft.
CloudCover	Float	Estimate of the maximum cloud-covered fraction of the image. 1.0 corresponds to 100% cloud cover. This cloud cover percentage refers to the entire scene and not necessarily the cloud cover percentage within the customer’s order polygon.
Quality	String	Textual description of environmental quality.