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- THE LUNAR CONSORTIUM DATASETS
- PAM CLARK
-
- These 18 datasets represent many of the lunar non-imaging
- remote sensing datasets which were placed into a common digital
- array format as part of the Lunar Consortium. Missing are the
- fields/particles and longwave datasets which are not presently
- available at JPL. These data are particularly valuable for
- for the following reasons.
-
- 1) From an historical standpoint: The lunar consortium database
- represents the first attempt ever to standardize planetary data
- which was disparate in resolution, property represented,
- original format, and origin (orbital or ground-based) into
- digital images with standardized format. In this sense, the lunar
- consortium set is the direct predecessor of the Planetary Data
- System.
-
- 2) From a scientific standpoint: The lunar consortium data
- represent the most complete and diversified set of remote
- sensing data available for any planetary object. The entire
- complement of lunar remote sensing data, much of which was
- contained in the original lunar consortium database,
- consists of both surface and fields (in situ) data
- from the entire remote sensing spectrum: the high energy
- region (Gamma-ray and Fluorescent X-ray measurements),
- the visual and near visual region (near UV, visual, and near
- IR measurements), the longwave region (passive microwave,
- radar, thermal), and the fields/particles region (gravity,
- magnetic field intensity and directional components).
- Derived altimetry data are also part of the database.
-
- Datasets contained herein are in simple cyclindrical
- projection unless otherwise stated. Datasets are binary,
- and consist of 1440 byte records. Most consist of 521
- records. Pixels are 1/4 degree by 1/4 degree in extent.
- Every fourth pixel starts at a whole number longitude
- or a whole number latitude.
-
-
- DATASET DESCRIPTIONS
-
- LUNARCON1.DAT: Apollo 15 and 16 X-ray Fluorescence derived
- orbital Al/Si intensity ratios corrected for variations in
- solar activity. A weighted filter has been applied, which
- produces an affective spatial resolution of about 30 km
- (1 degree).
- (Clark and Hawke, 1981, LPSC PROCEEDINGS)
-
- LUNARCON2.DAT: Apollo 15 and 16 X-ray Fluorescence derived
- orbital Mg/Si intensity ratios corrected for variations in
- solar activity. A weighted filter has been applied, which
- prpoduces an affective spatial resolution of about 30 km
- (1 degree).
- (Clark and Hawke, 1981, LPSC PROCEEDINGS)
-
- LUNARCON3.DAT: A version of the Apollo 15 and 16 X-ray
- fluorescence Mg/Si intensity ratio map above with a
- 39 x 39 pixel filter applied, giving an effective
- resolution of about 240 km (8 degrees).
- (Clark, 1982, unpublished)
-
- LUNARCON4.DAT: A 10 degree by 10 degree grid (relative to
- 9 degrees longitude and latitude) which can be applied to
- any of these simple cylindrical lunar datasets.
- (Clark, 1982, unpublished)
-
- LUNARCON5.DAT: An overlay, which outlines major basins,
- generated by Flagstaff, which is mercator projection, and
- may be transformed to simple cylindrical projection for
- overlay on the simple cylindrical datasets.
- (USGS, 1978, LPSC Proceedings)
-
- LUNARCON6.DAT: A geochemical classification map based
- on cluster analysis of the five available elemental
- concentration datasets: Al/Si, Mg/Si, Fe, Ti, and Th.
- (Clark, 1982, EOS)
-
- LUNARCON7.DAT: Apollo 15 and 16 orbital Gamma-ray Fe map.
- Derivation for Fe improved by limiting energy range for
- more exclusive production of Fe lines. Affective
- spatial resolution is 300 km.
- (Davis, 1980, JGR)
-
- LUNARCON8.DAT: Apollo 15 and 16 orbital Gamma-ray Ti map.
- Derivation for Ti improved by more effective removal
- of Fe lines as estimated from anti-correlated XRF Al/Si
- Data. Affective spatial resolution is 300 km.
- (Davis, 1980, JGR)
-
- LUNARCON9.DAT: Apollo 15 and 16 orbital Gamma-ray Th map.
- Derived from lines generated from natural radioactive
- decay of Th in lunar surface. Affective spatial resolution
- is 300 km.
- (Metzger, 1978, LPSC PROCEEDINGS)
-
- LUNARCON10.DAT: Relative Age unit map of lunar nearside
- derived from Apollo and Orbitter photographic data of sunlit
- hemisphere. Ages based on estimates of crater densities.
- The relationship between crater densities, degradation, and
- age has been derived from observations made in areas where
- samples were collected.
- (Boyce, 1978, LPSC PROCEEDINGS)
-
- LUNARCON11.DAT: Ground-based Normal Albedo map made at
- Lowell Observatory. Affective spatial resolution is 10 km.
- (Pohn and Wildey, 1978, LPSC PROCEEDINGS)
-
- LUNARCON12.DAT: Topography map of lunar equatorial region
- derived from Apollo 15 and 16 orbital laser altimeter.
- Height resolution is 100 m, affective spatial resolution
- is 10 km.
- (Kaula et al, 1978, LPSC PROCEEDINGS)
-
- LUNARCON13.DAT: Geological Unit based on Wilhelms lunar
- nearside geological feature map, 1/4 degree resolution.
- Major plains and terra units, both volcanic and impact,
- are shown for each of the four major episodes of lunar
- history.
- (Lin, 1978, LPSC PROCEEDINGS)
-
- LUNARCON14.DAT: Ground-based visual spectral
- reflectivity map with red filter produced a Lowell
- Observatory.
- (Soderblom, 1978, LPSC PROCEEDINGS)
-
- LUNARCON15.DAT: Ground-based visual spectral
- reflectivity map with green filter produced a Lowell
- Observatory.
- (Soderblom, 1978, LPSC PROCEEDINGS)
-
- LUNARCON16.DAT: Ground-based visual spectral
- reflectivity map with blue filter produced a Lowell
- Observatory.
- (Soderblom, 1978, LPSC PROCEEDINGS)
-
- LUNARCON17.DAT: Ground-based visual spectral
- reflectivity map (.38/.56).
- (Matson and Johnson, 1980, LPSC PROCEEDINGS)
-
- LUNARCON18.DAT: Nearside DMA Topography map derived from
- ground-based visual observations.
- (DMA, Unpublished)