Brightness Temperature Images
September 8, 2023.
The Clementine LWIR
brightness temperature dataset has
been migrated to the PDS4 standard. The original PDS3 data products,
labels, and documentation remain
available in their original archive
volume. The only change is that
PDS4 labels and documentation have
been added to the archives. The
original data files are unchanged.
pds4_migration_notes for more information.
This archive contains
lunar brightness temperature data derived from images
acquired by the Clementine Long Wavelength Infrared (LWIR)
camera. The LWIR camera acquired approximately 220,000
thermal-infrared images of the lunar surface. A complete
description of the online volume structure and the image
file format is in the file
VOLSIS.TXT in the DOCUMENT directory. The
Clementine LWIR brightness temperature data set was
produced by Dr. Stefanie L. Lawson, Los Alamos National
Laboratory, Los Alamos, New Mexico and Dr. Bruce M.
Jakosky, University of Colorado, Boulder, Colorado.
These images now have detached PDS4
labels (*.xml) and the original attached PDS3 labels.
They can be displayed with the
PDS4 Viewer tool and the PDS
The procedure for
generating brightness temperature values can be
summarized as follows: 1) original LWIR digital numbers
were converted to radiance; 2) the dark current signal
was subtracted from the radiance values; 3) a flat field
correction was applied; 4) bad pixels were identified
and smoothed over; and 5) calibrated radiance values
were converted to brightness temperatures using the
Planck function. Details of the processing are given in
Lawson et al. (Journal of Geophysical Research, v. 105,
pp. 4273-4290, 2000).
Clementine LWIR Data Products (PDS4)
||Introduction to the PDS4 bundle
||Introduction to the original PDS3 archive
||Notes and errata
||Index of all products in the
||Documentation for the archive
||Information about the archive in
the PDS Catalog
||PDS4 bundle root directory