Locations>VERTICAL LOCATION>LAND SURFACE
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ALOS PRISM Data Entry ID: alos_prism |
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Summary
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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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Related URL
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Link:
GET DATA
Link: GET DATA Description: Sample Data |
Geographic Coverage
| N: 90.0 | S: -90.0 | E: 180.0 | W: -180.0 |
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Data Set Citation
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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
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GEOGRAPHIC REGION
> GLOBAL
GEOGRAPHIC REGION > GLOBAL LAND VERTICAL LOCATION > LAND SURFACE |
Data Resolution
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Latitude Resolution:
2.5m
Longitude Resolution: 2.5m |
Science Keywords
| LAND SURFACE >LAND USE/LAND COVER >LAND COVER [Definition] |
| LAND SURFACE >LAND USE/LAND COVER >LAND RESOURCES [Definition] |
| LAND SURFACE >LAND USE/LAND COVER >LAND USE CLASSES [Definition] |
| LAND SURFACE >TOPOGRAPHY >CONTOURS [Definition] |
| LAND SURFACE >TOPOGRAPHY >LANDFORMS [Definition] |
| LAND SURFACE >TOPOGRAPHY >TOPOGRAPHICAL RELIEF [Definition] |
| LAND SURFACE >TOPOGRAPHY >TERRAIN ELEVATION [Definition] |
| SPECTRAL/ENGINEERING >VISIBLE WAVELENGTHS >VISIBLE IMAGERY [Definition] |
ISO Topic Category
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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
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Earth Observation Center, Japan Aerospace Exploration Agency, Japan
[Information]
Data Center URL: http://www.eorc.jaxa.jp/en/index.html
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Distribution
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Distribution_Media:
CD-R
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Distribution_Media:
DVD-R
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Distribution_Media:
Online Download
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Creation and Review Dates
DIF Creation Date:
2005-09-09
Last DIF Revision Date:
2005-11-22
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