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ALOS PRISM Data
Entry ID: alos_prism

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Summary
Abstract: The Panchromatic Remote-sensing Instrument for Stereo Mapping (PRISM) is a panchromatic radiometer with 2.5m spatial resolution at nadir. Its extracted data will provide a highly accurate digital surface model (DSM). PRISM has three independent optical systems for viewing nadir, forward and backward producing a stereoscopic image along the satellite's track. Each telescope consists of three mirrors and several CCD detectors for push-broom scanning. The nadir-viewing telescope covers a width of 70km; forward and backward telescopes cover 35km each. The telescopes are installed on the sides of the optical bench with precise temperature control. Forward and backward telescopes are inclined +24 and -24 degrees from nadir to realize a base-to-height ratio of 1.0. PRISM's wide field of view (FOV) provides three fully overlapped stereo (triplet) images of a 35km width without mechanical scanning or yaw steering of the satellite. Without this wide FOV, forward, nadir, and backward images would not overlap each other due to the Earth's rotation.--------------------------------PRISM Characteristics --------------------------------Number of Bands 1 (Panchromatic) Wavelength 0.52 to 0.77 micrometers Number of Optics 3 (Nadir; Forward; Backward) Base-to-Height ratio 1.0 (between Forward and Backward view) Spatial Resolution 2.5m (at Nadir) Swath Width 70km (Nadir only) / 35km (Triplet mode) S/N >70 MTF >0.2 Number of Detectors 28000 / band (Swath Width 70km)14000 / band (Swath Width 35km) Pointing Angle -1.5 to +1.5 degrees(Triplet Mode, Cross-track direction) Bit Length 8 bits Observation Modes: Mode 1 Triplet observation mode using Forward, Nadir, and Backwardviews (Swath width is 35km)Mode 2 Nadir (70km) + Backward (35km) Mode 3 Nadir (70km) Mode 4 Nadir (35km) + Forward (35km) Mode 5 Nadir (35km) + Backward (35km) Mode 6 Forward (35km) + Backward (35km) Mode 7 Nadir (35km) Mode 8 Forward (35km) Mode 9 Backward (35km)

Related URL
Link: GET DATA


Link: GET DATA
Description: Sample Data


Geographic Coverage
 N: 90.0 S: -90.0  E: 180.0  W: -180.0

Data Set Citation
Dataset Originator/Creator: JAXA
Dataset Title: ALOS PRISM Data
Dataset Release Date: 2006-05-16
Version: Latest Version


Temporal Coverage
Start Date: 2006-05-16
Stop Date: 2011-04-22


Location Keywords
GEOGRAPHIC REGION > GLOBAL
GEOGRAPHIC REGION > GLOBAL LAND
VERTICAL LOCATION > LAND SURFACE


Data Resolution
Latitude Resolution: 2.5m
Longitude Resolution: 2.5m


Science Keywords
LAND SURFACE >LAND USE/LAND COVER >LAND USE/LAND COVER CLASSIFICATION    [Definition]
LAND SURFACE >LAND USE/LAND COVER >LAND RESOURCES    [Definition]
LAND SURFACE >LAND USE/LAND COVER >LAND USE CLASSES    [Definition]
LAND SURFACE >TOPOGRAPHY >TERRAIN ELEVATION >CONTOUR MAPS    [Definition]
LAND SURFACE >GEOMORPHIC LANDFORMS/PROCESSES    [Definition]
LAND SURFACE >TOPOGRAPHY >TERRAIN ELEVATION >TOPOGRAPHICAL RELIEF MAPS    [Definition]
LAND SURFACE >TOPOGRAPHY >TERRAIN ELEVATION    [Definition]
SPECTRAL/ENGINEERING >VISIBLE WAVELENGTHS >VISIBLE IMAGERY    [Definition]


ISO Topic Category
GEOSCIENTIFIC INFORMATION
IMAGERY/BASE MAPS/EARTH COVER


Platform
ALOS >Advanced Land Observing Satellite    [Information]


Instrument
PRISM >Panchromatic Remote-sensing Instrument for Stereo Mapping    [Information]


Keywords
EOC
NASDA
JAXA
JAPAN
ALOS
PRISM
LAND
MAP
DEM
DISASTER
REMOTE SENSING
SATELLITE
Land Surface Imaging


Originating Center
JAXA


Data Center
Satellite Applications and Operations Center, Japan Aerospace Exploration Agency, Japan    [Information]
Data Center URL: http://www.jaxa.jp



Distribution
Distribution_Media: CD-R

Distribution_Media: DVD-R

Distribution_Media: Online Download



Creation and Review Dates
DIF Creation Date: 2012-08-21
Last DIF Revision Date: 2016-04-01



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