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High Resolution Imaging Science Experiment (HiRISE) DTM Stamp Layer

The HiRISE DTM Stamp Layer will display stamps for all DTM (digital terrain model) products produced by the High Resolution Imaging Science Experiment (HiRISE) science team. While the search interface is similar to the THEMIS Stamp Layer, there are some differences that allow users to search for HiRISE DTM products based on the unique parameters associated with both HiRISE images and DTM products.

Image:stamps_hirise_dtm.png

Open the HiRISE DTM Stamp Layer

  1. Open the Stamp Layer: Chose "Add New Layer" -> "Imagery" -> Make sure that "Image Sets" is selected and click "HiRISE DTM" OR Chose "Add New Layer" -> "Instrument" -> "HiRISE" -> "HiRISE DTM"
  1. Enter Search Parameters: Since there are so few HiRISE DTM products currently available, the only necessary search parameters are Image ID and Latitude/Longitude. The allowable values for each field are given in the quick reference table below followed by more detailed descriptions of each search parameter.
  1. Perform Image Search: Clicking OK will make the Stamp Layer perform the search and display the results. Once the stamps are displayed in the Viewing Window, users can right-click on an outline to viewed a shaded relief of the DTM. Users can also choose to view either of the images used to create the DTM by either rendering the images in JMARS or viewing the image in a web browser.
Image:stamps_hirisequery_dtm.png

 

HiRISE DTM Search Parameter Glossary

Filter Type

Acceptable Values

Description
Basic Parameters

Image ID(s)

Any Specific Image ID Number(s)

A unique identifier for each DTM product, which follows the pattern aabcd_xxxxxx_xxxx_yyyyyy_yyyy_Vnn, where:

  • aa = DT (indicating a DTM product)
  • b = type of data
    • E = areoid elevations
    • 1 = orthoimage pixels from first image
    • 2 = orthoimage pixels from second image
  • c = projection (others are possible but these are the important ones)
    • E = Equirectangular
    • P = Polar Stereographic
  • d = grid spacing (think of this as pixel scale in meters)
    • A = 0.25 m
    • B = 0.5 m
    • C = 1.0 m
    • D = 2.0 m
  • xxxxxx_xxxx = orbit number and latitude bin from SOURCE_PRODUCT_ID[1]
  • yyyyyy_yyyy = orbit number and latitude bin from SOURCE_PRODUCT_ID[2]
  • V = letter indicating producing institution
    • U = USGS
    • A = University of Arizona
    • C = CalTech
    • N = NASA Ames
    • J = JPL
    • O = Ohio State
    • Z = other
  • nn= 2 digit version number

Min/Max Longitude

0 to 360(East Longitude = Positive)
Blank(Any Longitude)

 This is the approximate longitude on the planet Mars of the image center. All values are based on the IAU 2000 aerocentric model of Mars with east positive longitude.

Min/Max Latitude

90 to -90(North Latitude = Positive)
Blank(Any Latitude)

 This is the approximate latitude on the planet Mars of the image center. All values are based on the IAU 2000 aerocentric model of Mars with north positive latitude.

Stamp Layer Functions

The HiRISE DTM Stamp Layer's functions are identical to the functions of the Stamp Layer and are explained in detail on the Stamp Layer page.