CLEMENTINE UVVIS 750-nm BASEMAP

Clementine UVVIS 750-nm Basemap

Information and Browser for CD Volume CL_3015

This CD is part of a 15 volume set that contains the "Clementine Basemap Mosaic" of Earth's Moon. The lunar basemap is a radiometrically and geometrically controlled, photometrically modeled global image mosaic compiled using more than 43,000 images from the 750 nanometer filter observations of the Ultraviolet / Visible camera onboard the Clementine Spacecraft. The basemap mosaic is mapped in the Sinusoidal Equal-Area projection at a resolution of 100 meters per pixel requiring approximately 10 gigabytes of digital storage. The basemap is partitioned into 14 geographic zones with each zone contained on a CD volume. Twelve zones, each 30 degrees wide in longitude and ranging from 70 degrees south to 70 degrees north, make up the mid-latitude regions (CD volumes 2-13). The two polar zones cover 360 degrees of longitude from 70 degrees latitude to the pole (CD volumes 1 and 14). A 15th volume contains reduced-resolution planetwide coverage at 0.5, 2.5, and 12.5 km/pixels. Backplane data files for emission, incidence, and phase angle values are also present on volume 15.

The geographic zones are further divided into "tiles". Each tile covers ~7 degrees of latitude with longitude coverage of ~6 degrees at the equatorial regions to larger longitude coverage at higher latitudes (longitude convergence at the poles allows more longitude coverage of each tile at the higher latitudes). Tiles are stored as image files of approximately 2100 pixels on a side. Pixels are 16-bit signed integers.

Browse the Image Collection on this CD
You can view browse versions (reduced resolution images) of the image files located on this CD by using one of the following graphics- or list-based interfaces.
Graphics-based 0.5km or 2.5 & 12.5km	List-based

The table shown below summarizes the contents of each CD volume and provides links to the browse versions (reduced resolution images) of the image files located on those volumes. The browse images are available with a graphics- or list-based interface.

CD Volume	Browser Interface		Latitude Range	Longitude Range
cl_3001	Graphics-based	List-based	70°N to 90°N	0° to 360°
cl_3002	Graphics-based	List-based	70°S to 70°N	0° to 30°
cl_3003	Graphics-based	List-based	70°S to 70°N	30° to 60°
cl_3004	Graphics-based	List-based	70°S to 70°N	60° to 90°
cl_3005	Graphics-based	List-based	70°S to 70°N	90° to 120°
cl_3006	Graphics-based	List-based	70°S to 70°N	120° to 150°
cl_3007	Graphics-based	List-based	70°S to 70°N	150° to 180°
cl_3008	Graphics-based	List-based	70°S to 70°N	180° to 210°
cl_3009	Graphics-based	List-based	70°S to 70°N	210° to 240°
cl_3010	Graphics-based	List-based	70°S to 70°N	240° to 270°
cl_3011	Graphics-based	List-based	70°S to 70°N	270° to 300°
cl_3012	Graphics-based	List-based	70°S to 70°N	300° to 330°
cl_3013	Graphics-based	List-based	70°S to 70°N	330° to 360°
cl_3014	Graphics-based	List-based	90°S to 70°S	0° to 360°
* cl_3015 *	Graphics-based 0.5km or 2.5 & 12.5km	List-based	reduced resolution global coverage
* indicates current CD volume *

A detailed description of the Clementine Basemap Mosaic with information about the organization and compilation of the database is provided in the file: volinfo.htm. Please refer to this document for more information.

The Clementine Basemap Mosaic was compiled for the National Aeronautics and Space Administration (NASA) by the United States Geological Survey (USGS) under the direction of Dr. Alfred S. McEwen, Principal Investigator (now with the University of Arizona). Tammy Becker, Ella Lee, Kay Edwards (retired), and Dr. Mark Robinson (now with Northwestern University) comprised the USGS technical group responsible for its compilation. The Lunar Geometric Control network was derived by Mert Davies and Tim Colvin (both from the RAND Corporation). The design, layout, and production of the CDs were performed by Chris Isbell and Eric Eliason. Thanks to Kris Becker for the development of software tools for producing PDS compatible data sets. Also, an extended number of people have contributed to the production of the Clementine Basemap. A group photo was produced as a token of recognition of those involved.

The Clementine Basemap Mosaic can be obtained by contacting the Planetary Data System (PDS) Imaging Node. For more information contact Eric Eliason, U.S. Geological Survey, 2255 North Gemini Drive, Flagstaff, AZ 86001 [telephone: (520) 556-7113, e-mail: eeliason@usgs.gov].

The image files are organized according to NASA's PDS standards. An image file (tile) is organized as a PDS labeled file containing an "image object". Additionally, each image file is associated with an Integrated Software for Imaging Spectrometers (ISIS) "qube object" detached label. This detached label allows for images to be accessed and processed in the ISIS system (available through the USGS, Flagstaff, AZ). Several access tools are available that support the Clementine Basemap Mosaic. The program "NASAView" provides a simple display capability for images stored in the PDS format. This tool is available for distribution by the PDS (Jet Propulsion Laboratory, Pasadena, CA). Using NASAView as a web browser helper application is discussed in the "Image Display for Full Resolution Image Products" section below. Additionally, a software tool called "MapMaker" enables users to extract seamless mosaics of images for any latitude-longitude region and at a variety of scales in different map projections. MapMaker, available for distribution through the PDS Imaging Node, can output images in a variety of formats common to the user community (gif, jpeg, tiff, PDS)

Internet resources (only useful with internet link):

For more information on obtaining the Clementine Basemap Mosaic and the MapMaker software contact the Planetary Data System Imaging Node. (http://www-pdsimage.jpl.nasa.gov/PDS)
Compilation by the Astrogeology Team, United States Geological Survey, Flagstaff, Arizona, and information on obtaining the ISIS System. (http://wwwflag.wr.usgs.gov)
Principal Investigator, Dr. Alfred S. McEwen. (http://pirl.lpl.arizona.edu/pirl)
Information on PDS Standards and the NASAView program, PDS Home Page. (http://pds.jpl.nasa.gov)

Image Display for Full Resolution Image Products

In addition to displaying reduced resolution 'browse' images, the graphics and list based interfaces provided above are also designed to allow for display of full resolution image products through the use of a web-browser helper application. The program NASAView can be used for this purpose. NASAView is a PDS product display tool that runs on multiple platforms with a common graphical user interface. See the PDS Home Page for more information on NASAView and it's availability (http://pds.jpl.nasa.gov/). Once NASAView is installed on your system, it can be incorporated with your web browser as a helper application. Refer to your particular web browser documentation for information on helper applications.

CD Volume and Directory Structure

The CD contents and directory structure are presented below. Directories (folders) are indicated by boldface type. Documentation and other ancillary support files may be viewed by selecting (clicking) the desired filename. Detailed documentation regarding the Clementine Basemap Mosaic are available in the aareadme (top level directory) and volinfo (document directory) files.

Top level CD directory:

aareadme.txt - General information (in ASCII form) regarding this CD volume set.
index.htm - HTML document you are now accessing.
errata.txt - Description of known anomalies or errors associated with this volume set.
voldesc.cat - PDS label describing this volume set.

NOTE: The 'aareadme.txt' file contains redundant information to this page. The file exists so that the information about the Clementine Basemap Mosaic can be conveyed without the benefit of an HTML browser.

The following directories contain individual Clementine DIM data products (tiles):

bm90_90 - Tiles between latitude 90°N and 90°S.
bq90_90 - Two sinusoidal hemispheres (Near/Far format).
bu90_00 - Planetwide sinusoidal.
polar- Polar region orthographic images.
pq90_90 - Phase angle backplane.
iq90_90 - Incidence angle backplane.
eq90_90 - Emission angle backplane.

browse directory:

browinfo.txt - Description of browse contents.
The browse directory contains the following directory structure:
- small - Contains directories bm90_90 bq90_90 bu90_90 polar that hold "small" size (low resolution, ~60x60 pixels) JPEG images for each DIM tile.
- medium - Contains directories bm90_90 bq90_90 bu90_90 polar that hold "medium" size (medium resolution, ~400x400 pixels) JPEG images for each DIM tile.
- large - Contains directories bm90_90 bq90_90 bu90_90 polar that hold "large" size (higher resolution, ~1000x1000 pixels) JPEG images for each DIM tile.
The following links provide a means of viewing browse images for each image product provided on the CD. A graphics (map)-based and a list (ASCII listing)-based format are provided.
brwsgrp.htm - Graphics-based interface (0.5km/pixel).
brwsgrp2.htm - Graphics-based interface (2.5 & 12.5km/pixel).
brwstxt.htm - Complete List-based interface.

The browse directory also contains directories for browse images for each volume of this CD set. Browse images within these directories ( CL_3001 through CL_3014) can be accessed via the links provided in the introductory section of this HTML document.

document directory:

docinfo.txt - Description of document contents.
volinfo.txt - Detailed description (in ASCII form) regarding this CD volume set.
volinfo.htm - HTML version of volinfo.txt.
volinfo.doc - MS-Word V6.0 version of volinfo.txt.
volinfo.pdf - Acrobat Portable Document Format (PDF) version of volinfo.txt.
volinfo.lbl - PDS label describing volinfo files.

NOTE: To maximize readability of the 'Volinfo' document, several formatted versions of this document is available on this CD. The 'volinfo.txt' file may be missing figures that can not be portrayed in an ASCII text document.

catalog directory:

catinfo.txt - Description of catalog contents
mission.cat - Mission description
insthost.cat - Clementine Spacecraft description
uvisinst.cat - UV/VIS camera description
dataset.cat - Clementine Basemap dataset description
dsmap.cat - Map Projection description
person.cat - Contributors description
refs.cat - References description

index directory:

indxinfo.txt - Description of index contents.
imgindx.tab - Index (database) file containing descriptive elements for each CD data product.
imgindx.lbl - PDS label file for imgindx.tab.
srcindx.tab - Index (database) file that references source raw images with each CD data product.
srcindx.lbl - PDS label file for srcindx.tab.