Alos mission requirement and sensor specifications

Igarashi, Tamotsu

doi:10.1016/s0273-1177(01)00316-7

Cited by 52 publications

(29 citation statements)

References 5 publications

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“…Since the repeat intervals of most satellites are daily to monthly [46], it is feasible to acquire pre-and post-disaster satellite images that are helpful for quickly identifying damages. In addition, the Terra/ASTER [47], ALOS [48], ALOS-2 [49], and Sentinel-1 [50] satellites can respond to urgent requests for observations from emergency response teams. Moreover, although observation frequency could be a trade-off to spatial resolution, constellation satellites, such as RapidEye [51], COSMO-SkyMed [52], Pléiades system [53], and Sentinel system [50], breaks through the trade-off by using temporally-shifted satellites with identical specifications in the coplanar orbits [54].…”

Section: Earth Observationmentioning

confidence: 99%

Reviews of Geospatial Information Technology and Collaborative Data Delivery for Disaster Risk Management

Miyazaki

Nagai

Shibasaki

2015

IJGI

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Due to the fact that geospatial information technology is considered necessary for disaster risk management (DRM), the need for more effective collaborations between providers and end users in data delivery is increasing. This paper reviews the following: (i) schemes of disaster risk management and collaborative data operation in DRM; (ii) geospatial information technology in terms of applications to the schemes reviewed; and (iii) ongoing practices of collaborative data delivery with the schemes reviewed. This paper concludes by discussing the future of collaborative data delivery and the progress of the technologies.

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Section: Earth Observationmentioning

confidence: 99%

Reviews of Geospatial Information Technology and Collaborative Data Delivery for Disaster Risk Management

Miyazaki

Nagai

Shibasaki

2015

IJGI

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“…Este sensor foi lançado em 2006, possuindo órbita circular heliossíncrona, altitude de 692 km e (IGARASHI, 2001).…”

Section: Imagens Do Sensor Alos/prismunclassified

Análise do uso e cobertura da terra e da fragmentação da paisagem no município de Missal-PR

et al. 2013

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RESUMOO presente trabalho tem como objetivo realizar o mapeamento do Uso e Cobertura da Terra na escala 1:50.000 do município de Missal (PR) e analisar o estágio de fragmentação da paisagem. Neste propósito foram utilizadas técnicas de sensoriamento remeto e Sistema de Informações Geográficas. A elaboração do mapa de uso e cobertura da terra foi realizada por interpretação visual das imagens do sensor ALOS/PRISM com alta resolução espacial. Neste mapeamento foram identificadas treze classes de uso e cobertura da Terra. A partir dos vetores de hidrografia foi determinada as Áreas de Preservação Permanente (APP) dos corpos d'água conforme a lei federal. A análise de fragmentação foi realizada pelo programa FRAGSTAT, considerando diferentes tipos de métricas: área, densidade, tamanho, variabilidade, borda e forma. Os resultados demonstram que a vegetação natural ocupa 19,49% da área do município (6.233,21 ha). O município possui 900 fragmentos de vegetação e o maior fragmento apresenta 1.223,39 ha. As APPs apresentam uma alta porcentagem com uso indevido (48%). A maior área preservada está localizada nas margens da represa de Itaipu onde estão localizados os maiores fragmentos. Em contraposição as áreas relativas às APPs presentes nas áreas marginais dos rios apresentam uma alta taxa de degradação.Palavras chave: Fragmentação. Paisagem. Área de Preservação Permanente (APP). Uso e Cobertura da Terra. ABSTRACTThe present paper aims to elaborate the 1:50.000 scale Land use/ Land Cover map in the Missal (PR) County, and to analyze the landscape fragmentation. In this way, were used remote sensing and Geographic Information System. The land use land cover map was elaborated by visual interpretation from sensor ALOS / PRISM images with high spatial resolution. In this mapping were identified thirteen classes of land use land cover. Permanent Preservation Areas (PPA) of bodies of water was determined according to federal law from hydrograph vectors. The fragmentation analysis was performed by the FRAGSTAT program, considering different types of metrics: area, density, size, variability, edge and shape. The results show that the natural vegetation occupies 19.49% of the county area (6233.21 ha). The county has 900 vegetation fragments and the largest fragment has 1223.39 ha. The PPAs have a high percentage with misuse (48%). The largest conservation area is located on Itaipu dam margins. In contrast the areas relating to PPA present in the marginal areas of rivers have a high degradation rate.

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“…It has multi polarization configuration (HH, HV, VH, and VV), variable off-nadir angle (9.9 to 50.8 degrees), and switching spatial resolution (10 m, 30 m, 100 m for Fine, Polarimetric, and ScanSar modes, respectively) and swath width observation (30 km, 70 km, and 250-350 km for Polarimetric, Fine and ScanSar modes, respectively) (Igarashi, 2001). L-band SAR data can observe the forest's underlying surface features as well as the canopy because of its penetration capability.…”

Section: Introductionmentioning

confidence: 99%

Gold Mineral Prospecting Using Phased Array Type L-Band Synthetic Aperture Radar (Palsar) Satellite Remote Sensing Data, Central Gold Belt, Malaysia

Pour¹,

Hashim²

2016

Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci.

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ABSTRACT:The Bentong-Raub Suture Zone (BRSZ) of Peninsular Malaysia is one of the significant structural zones in Sundaland, Southeast Asia. It forms the boundary between the Gondwana-derived Sibumasu terrane in the west and Sukhothai arc in the east. The BRSZ is also genetically related to the sediment-hosted/orogenic gold deposits associated with the major lineaments and form-lines in the central gold belt Central Gold Belt of Peninsular Malaysia. In tropical environments, heavy tropical rainforest and intense weathering makes it impossible to map geological structures over long distances. Advances in remote sensing technology allow the application of Synthetic Aperture Radar (SAR) data in geological structural analysis for tropical environments. In this investigation, the Phased Array type L-band Synthetic Aperture Radar (PALSAR) satellite remote sensing data were used to analyse major geological structures in Peninsular Malaysia and provide detailed characterization of lineaments and form-lines in the BRSZ, as well as its implication for sediment-hosted/orogenic gold exploration in tropical environments. The major geological structure directions of the BRSZ are N-S, NNE-SSW, NE-SW and NW-SE, which derived from directional filtering analysis to PALSAR data. The pervasive array of N-S faults in the study area and surrounding terrain is mainly linked to the N-S trending of the Suture Zone. N-S striking lineaments are often cut by younger NE-SW and NW-SE-trending lineaments. Gold mineralized trends lineaments are associated with the intersection of N-S, NE-SW, NNW-SSE and ESE-WNW faults and curvilinear features in shearing and alteration zones. Lineament analysis on PALSAR satellite remote sensing data is a useful tool for detecting the boundary between the Gondwana-derived terranes and major geological features associated with suture zone especially for large inaccessible regions in tropical environments.

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Alos mission requirement and sensor specifications

Cited by 52 publications

References 5 publications

Reviews of Geospatial Information Technology and Collaborative Data Delivery for Disaster Risk Management

Reviews of Geospatial Information Technology and Collaborative Data Delivery for Disaster Risk Management

Análise do uso e cobertura da terra e da fragmentação da paisagem no município de Missal-PR

Gold Mineral Prospecting Using Phased Array Type L-Band Synthetic Aperture Radar (Palsar) Satellite Remote Sensing Data, Central Gold Belt, Malaysia

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