The Multi-angle Imaging SpectroRadiometer (MISR) acquired these natural
color images and cloud top height measurements for Monty before and after
the storm made landfall over the remote Pilbara region of Western
Australia, on February 29 and March 2, 2004 (shown as the left and
right-hand image sets, respectively). On February 29, Monty was upgraded to
category 4 cyclone status. After traveling inland about 300 kilometers to
the south, the cyclonic circulation had decayed considerably, although
category 3 force winds were reported on the ground. Some parts of the
drought-affected Pilbara region received more than 300 millimeters of
rainfall, and serious and extensive flooding has occurred.
The natural color images cover much of the same area, although the
right-hand panels are offset slightly to the east. Automated stereoscopic
processing of data from multiple MISR cameras was utilized to produce the
cloud-top height fields. The distinctive spatial patterns of the clouds
provide the necessary contrast to enable automated feature matching between
images acquired at different view angles. The height retrievals are at this
stage uncorrected for the effects of the high winds associated with cyclone
rotation. Areas where heights could not be retrieved are shown in dark
gray.
The Multi-angle Imaging SpectroRadiometer observes the daylit Earth
continuously and every 9 days views the entire globe between 82 degrees
north and 82 degrees south latitude. These data products were generated
from a portion of the imagery acquired during Terra orbits 22335 and 22364.
The panels cover an area of about 380 kilometers x 985 kilometers, and
utilize data from blocks 105 to 111 within World Reference System-2 paths
115 and 113.
MISR was built and is managed by NASA's Jet Propulsion Laboratory,
Pasadena, CA, for NASA's Office of Earth Science, Washington, DC. The Terra
satellite is managed by NASA's Goddard Space Flight Center, Greenbelt, MD.
JPL is a division of the California Institute of Technology.