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Global Change Master Directory (GCMD)
ALOS PRISM Data
Entry ID: alos_prism_Latest Version_Latest Version


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)

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Description: Sample Data

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

Data Set Citation
Dataset Creator: JAXA
Dataset Title: ALOS PRISM Data
Dataset Release Date: 2006-05-16T00:00:00.000Z
Version: Latest Version
Online Resource: Not%20provided


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


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]


Platform
ALOS >Advanced Land Observing Satellite    [Information]


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


Project
ALOS Science Project >ALOS Science Project    [Information]


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


Data Set Progress
COMPLETE


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

Data Center Personnel
Name: JAXA G-PORTAL
Email: z-gportal-support at ml.jaxa.jp
Contact Address:
Japan Aerospace Exploration Agency (JAXA)
2-1-1, Sengen
City: Tsukuba-city
Province or State: Ibaraki
Postal Code: 305-8505
Country: JAPAN



Distribution
Distribution_Media: CD-R

Distribution_Media: DVD-R

Distribution_Media: Online Download


Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 2012-08-21
Last DIF Revision Date: 2017-10-12



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