Selasa, 21 Oktober 2008

East View Cartographic offers ALOS Imagery Press Release
East View Cartographic offers ALOS Imagery

East View Cartographic Presents Technically Superior, Cost-Effective Satellite Imagery from ALOS (Advanced Land Observing Satellite of JAXA, the Japanese Aerospace Exploration Agency)

East View Cartographic has entered into a long-term partnership with RESTEC (Remote Sensing Technology Center of Japan), the commercial distribution arm of JAXA, to offer exceptionally high quality, cost-effecitve, precision ALOS imagery for your most exacting geospatial needs.

About ALOS
ALOS was launched in January 2006 from Japan and is equipped with three sensors:

Panchromatic Remote-Sensing Instrument for Stereo Mapping (PRISM) is an optical sensor for observing visible terrain areas with a 2.5-meter spatial resolution. It has three independent optical systems to acquire terrain data including altitude data so that images for nadir, forward, and backward views can be acquired at the same time. This allows for three-dimensional terrain data with a high accuracy and frequency.

Images obtained from the PRISM sensor are ideally suited for a broad range of geospatial applications:
• Orthophoto generation
• Change-detection
• Map production/revision

In addition, stereo and triplet imagery collected by the PRISM sensor can be utilized to generate high-resolution Digital Surface Models with a recommended grid spacing from 10m to 30m.
• Spatial Resolution: 2.5 m (at nadir)
• Swath Width: 35 km (Triplet mode)
• 70 km ( Nadir only, Wide swath mode)

Advanced Visible and Near Infrared Radiometer type 2 (AVNIR-2) is used to create maps for categorizing land usage or vegetation by observing mainly land and coastal areas using visible and near infrared bands. AVNIR-2 is equipped with a pointing function by which it can shift its observation area perpendicular to the ALOS's moving direction. 10m resolution multi-spectral AVNIR-2 imagery can also be pan-sharpened with panchromatic PRISM imagery to produce a 2.5 meter true-color image at a significantly lower cost than other mid-resolution commercial imagery options.
• Spatial Resolution: 10 m (at nadir)
• Swath Width: 70 km (at nadir)

Phased Array type L-band Synthetic Aperture Radar (PALSAR) is a microwave sensor which is ideal for varying weather conditions. It is equipped with a function to change its observation direction and observation mode to cover wider range. The PALSAR sensor has proven to be an important tool in environmental monitoring and disaster management.
Beam Mode Resolution Swath Width
Polarimetric 10 m
20 m
100 m
30 m 70 km
70 km
250-350 km
30 km

EVC Approach and Capabilities
East View Cartographic offers the following value-added services using the imagery from ALOS:
• Orthorectification and Ground Control Point (GCP) integration
• Pan-Sharpening
• Tonal Balancing and Scene Mosaicking
• DEM/DSM Generation
• GIS Feature Extraction
• Topographic Map Revision

East View Cartographic (EVC) is a leading provider of authoritative maps and geospatial data from around the world. Products are available through our web site and our staff can skillfully assist customers with detailed data requests.

EVC specializes in custom GIS data production using data from a variety of in-house or client sources. EVC is the leading provider of global outsourcing management services, helping clients find and manage the right mapping and GIS data production resources for each project. EVC offers a broad range of geospatial raster and vector data from high-resolution DEMs to full vector GIS datasets.

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1 komentar:

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