XVIIIth Congress: XVIIIth Congress

kraus, karl; waldhäusl, peter

Bibliographic data

Multivolume work

Persistent identifier:: 1667435949

Title:: XVIIIth Congress

Sub title:: Vienna, Austria 1996

Year of publication:: 1996

Place of publication:: Vienna

Publisher of the original:: Austrian Society of Surveying and Geoinformation

Identifier (digital):: 1667435949

Language:: English

Editor:: Kraus, Karl; Waldhäusl, Peter

Corporations:: International Society for Photogrammetry and Remote Sensing, Congress, 18., 1996, Wien; International Society for Photogrammetry and Remote Sensing

Adapter:: International Society for Photogrammetry and Remote Sensing, Congress, 18., 1996, Wien; International Society for Photogrammetry and Remote Sensing

Founder of work:: International Society for Photogrammetry and Remote Sensing, Congress, 18., 1996, Wien; International Society for Photogrammetry and Remote Sensing

Other corporate:: International Society for Photogrammetry and Remote Sensing, Congress, 18., 1996, Wien; International Society for Photogrammetry and Remote Sensing

Document type:: Multivolume work

Volume

Persistent identifier:: 1667437070

Title:: XVIIIth Congress

Scope:: 230 Seiten

Year of publication:: 1996

Place of publication:: Vienna

Publisher of the original:: Austrian Society of Surveying and Geoinformation

Identifier (digital):: 1667437070

Illustration:: Illustrationen, Diagramme

Signature of the source:: ZS 312(31,B1)

Language:: English

Additional Notes:: Erscheinungsdatum des Originals ist anhand des Copyrightjahrs ermittelt.

Usage licence:: Attribution 4.0 International (CC BY 4.0)

Editor:: Kraus, Karl; Waldhäusl, Peter

Corporations:: International Society for Photogrammetry and Remote Sensing, Congress, 18., 1996, Wien; International Society for Photogrammetry and Remote Sensing; International Society for Photogrammetry and Remote Sensing, Commission Primary Data Acquisition

Adapter:: International Society for Photogrammetry and Remote Sensing, Congress, 18., 1996, Wien; International Society for Photogrammetry and Remote Sensing; International Society for Photogrammetry and Remote Sensing, Commission Primary Data Acquisition

Founder of work:: International Society for Photogrammetry and Remote Sensing, Congress, 18., 1996, Wien; International Society for Photogrammetry and Remote Sensing; International Society for Photogrammetry and Remote Sensing, Commission Primary Data Acquisition

Other corporate:: International Society for Photogrammetry and Remote Sensing, Congress, 18., 1996, Wien; International Society for Photogrammetry and Remote Sensing; International Society for Photogrammetry and Remote Sensing, Commission Primary Data Acquisition

Publisher of the digital copy:: Technische Informationsbibliothek Hannover

Place of publication of the digital copy:: Hannover

Year of publication of the original:: 2019

Document type:: Volume

Collection:: Earth sciences

Chapter

Title:: A SAR System on the ALOS H. Wakabayashi, Y. Osawa, K. Toda, T. Hamazaki, and R. Kuramasu

Document type:: Multivolume work

Structure type:: Chapter

nel. )EOS A SAR System on the ALOS H. Wakabayashi, Y. Osawa, K. Toda, T. Hamazaki, and R. Kuramasu Earth Observation Satellite Department National Space Development Agency of Japan 1-29-6, Hamamatsu-cho, Minato-ku, Tokyo, 105 JAPAN Commission |, Working Group 4 KEY WORDS: SAR, Development, Land, ALOS, PALSAR ABSTRACT: The Advanced Land Observing Satellite (ALOS) is a Japanese high resolution earth observation satellite and will be used for cartography, environmental and hazard monitoring. National Space Development Agency of Japan (NASDA) has recently investigated users' requirements and conducted a feasibility study on the ALOS. As a result, mission requirements were clarified, and then proposed specifications for sensors and a satellite system were defined. The ALOS has both optical and microwave imaging sensors to achieve these requirements. Especially, the L-band synthetic aperture radar (SAR), which is a follow-on sensor of the JERS-1/SAR, has capabilities of look-angle change and the ScanSAR mode.The ALOS is scheduled to be launched in 2002 by Japanese H-Il rocket. This paper introduces an outline of mission concepts, a satellite system configuration, and the SAR characteristics of the ALOS. 1. INTRODUCTION 2. MISSION CONCEPT There are many kinds of remote sensing satellites in orbit The main mission of the ALOS are cartography, and in planning stage. Some satellites, such as the environmental and hazard monitoring by using both NOAA's and the ADEOS-II (Nakajima et a/., 1994) are optical and microwave high resolution sensors. Maps are dedicated to global observation by using wide-swath very important information for managing a country's sensor and relatively short orbit repeat cycle. On the resources: e.g., cultivated area, forest, and so on. In other hand, high resolution satellites, such as the Japan, 1/25,000 maps cover whole Japanese territory, Landsat, the SPOT and the JERS-1 are providing useful and are being revised about every five years by the data for regional observation. Japanese Geographical Survey Institute. However, “paper” maps larger than 1/31,680 scale cover only 31% NASDA surveyed future needs on regional observation of the whole world. Especially, in developing countries, and clarified the user's requirements. NASDA also more than 9096 are unmapped in this scale. Also, in conducted a feasibility study on sensors and a satellite recent years, Geographical Information System (GIS) system and defined proposed specifications. As the has been developed eagerly in many countries, however, result, the Advanced Land Observing Satellite (ALOS), enough “digital” geographical data has not been collected which is focusing on regional observations, was decided. yet. The "digital" data of wide area could be efficiently And a high resolution optical sensor (AVNIR-2: Advanced collected by remote sensing, particularly, from space. Visible and Near-infrared Radiometer type-2) as well as a The GIS is very efficient way to manage the countries' synthetic aperture radar (PALSAR: Phased Array type L- resources, because of its capability and flexibility, that band Synthetic Aperture Radar, formerly called 'VSAR") making/revising precise maps on GIS using remotely were chosen as the mission instruments of the ALOS. sensing data, are helpful to the "sustainable The Japanese government has just authorized the phase development". These maps are also useful to B budget of the ALOS. The ALOS project is going to the environmental monitoring. According to our recent preliminary design and the BBM phase. The ALOS is investigation, to make/revise 1/25,000 scale maps needs currently scheduled to be launched in 2002 by Japanese 2.5 m horizontal resolution for determination of land H-II rocket. conditions, and 5 m vertical accuracy for drawing elevation contours. Also, multispectral bands of 10 m This paper introduces mission concepts and general horizontal resolution as well as L-band SAR data are characteristics of the ALOS satellite. In the latter part of required for classification of land cover, such as this paper, we will concentrate on the detailed vegetation, forests, urban area, and so on (Osawa et al., characteristics of the PALSAR system. 1995). 193 International Archives of Photogrammetry and Remote Sensing. Vol. XXXI, Part B1. Vienna 1996

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