نتایج جستجو برای: سنجنده palsar

تعداد نتایج: 2473  

2008
Osamu Isoguchi Masanobu Shimada

An empirical relation between normalized radar cross sections (NRCS) and wind vectors, known as the geophysical model function (GMF), has been established for specific wavelengths, such as Ku-band and C-band, by using scatterometermeasured NRCS and buoy or model winds [1][2]. On the contrary, L-band NRCS dependence on wind fields has been investigated by using airborne and spaceborne Synthetic ...

2017
Philippe Paillou

Space-borne Synthetic Aperture Radar (SAR) has the capability to image subsurface features down to several meters in arid regions. A first demonstration of this capability was performed in the Egyptian desert during the early eighties, thanks to the first Shuttle Imaging Radar mission. Global coverage provided by recent SARs, such as the Japanese ALOS/PALSAR sensor, allowed the mapping of vast ...

2011
E. Lehmann P. Caccetta Z.-S. Zhou A. Mitchell I. Tapley A. Milne A. Held K. Lowell S. McNeill

The joint processing of remote sensing data acquired from sensors operating at different wavelengths has the potential to significantly improve the operation of global forest mapping and monitoring systems. This paper presents an analysis of the forest discrimination properties of Landsat TM and ALOS-PALSAR data when considered as a combined source of information. This study is carried out over...

Journal: :Remote Sensing 2013
Anastasia Polychronaki Ioannis Z. Gitas Sander Veraverbeke Annekatrien Debien

In this work, the potential of Advanced Land Observing Satellite (ALOS) Phased Array type L-band Synthetic Aperture Radar (PALSAR) imagery to map burned areas was evaluated in two study areas in Greece. For this purpose, we developed an object-based classification scheme to map the fire-disturbed areas using the PALSAR imagery acquired before and shortly after fire events. The advantage of empl...

2017
Ryo Natsuaki Hiroto Nagai Takeshi Motohka Masato Ohki Manabu Watanabe Rajesh B. Thapa Takeo Tadono Masanobu Shimada Shinichi Suzuki

The Advanced Land Observing Satellite-2 (ALOS-2, “DAICHI-2”) has been observing Nepal with the Phased Array type L-band Synthetic Aperture Radar-2 (PALSAR-2) in response to an emergency request from Sentinel Asia related to the Mw 7.8 Gorkha earthquake on April 25, 2015. PALSAR-2 successfully detected not only avalanches and local crustal displacements but also continental-scale deformation. Es...

2008
A. H. Ng H. Chang L. Ge C. Rizos M. Omura

This paper describes the results using data from ALOS and ENVISAT satellites for the purpose of subsidence monitoring over underground coal mine sites in the state of New South Wales, Australia, using the differential interferometric synthetic aperture radar (DInSAR) technique. The quality of the mine subsidence monitoring results is mainly constrained by the noise due to the spatial and tempor...

2014
Gulab Singh

glaciated terrain classification Gulab Singh, Y. Yamaguchi, and S-E. Park Graduate School of Science and Technology, Niigata University, Ikarashi 2-8050, Niigata, 950-2181, Japan Abstract---Glaciated terrain classification is important for hydrological and climate change modeling. For this purpose, fully polarimetric Advanced Land Observation Satellite-Phase Array L-band Synthetic Aperture Rada...

Journal: :J. Geographic Information System 2011
Rizatus Shofiyati Ishak Hanafiah Ismullah Dan Dudung Muhally Hakim

Agricultural land has a strategic function as the primary food provider for the people of Indonesia. Various methods of agricultural production estimation, particularly food crops, provide different information. It can be a source of error in decision making. Satellite data, provides information periodically, wide coverage area, can be used as a source of information on the condition of agricul...

2013
Y L Wei H Kawamura

We have developed retrieval methods for swell parameters such as wave height, wavelength, and wave propagation direction from images of PALSAR on board ALOS taken over coastal seas around Japan. The retrieval methods for wavelength and wave direction use the PALSAR image spectrum. The SAR image spectrum has an inherent 180 o direction ambiguity, which can be solved using the fact that the swell...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید