Results 31 to 40 of about 24,575,784 (165)

Palsar i Vissátvuopmi: Kartering och klassificering utifrån DEM-raster [PDF]

, 2020
Palsar är torvkullar med en kärna av permafrost som förekommer i subarktiska miljöer med diskontinuerlig permafrost. Palsarna är mycket känsliga för klimatförändringar och har minskat snabbt till följd av den globala uppvärmningen, med bland annat ...
Mägi Hurtig, Ivar, Gustafsson, Ellinor
core  

Annual Maps of Forests in Australia from Analyses of Microwave and Optical Images with FAO Forest Definition

Journal of Remote Sensing, 2021
The Australian governmental agencies reported a total of 149 million ha forest in the Food and Agriculture Organization of the United Nations (FAO) in 2010, ranking sixth in the world, which is based on a forest definition with tree height>2 meters. Here,
Yuanwei Qin, Xiangming Xiao, Jean-Pierre Wigneron, Philippe Ciais, Josep G. Canadell, Martin Brandt, Xiaojun Li, Lei Fan, Xiaocui Wu, Hao Tang, Ralph Dubayah, Russell Doughty, Qing Chang, Sean Crowell, Bo Zheng, Kevin Neal, Jorge A. Celis, Berrien Moore   +17 more
doaj   +1 more source

Preliminary Study on the Radar Vegetation Index (RVI) Application to Actual Paddy Fields by ALOS/PALSAR Full-polarimetry SAR Data [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2015
Kim and van Zyl (2001) proposed a kind of radar vegetation index (RVI). RVI = 4*min(λ1, λ2, λ3) / (λ1 + λ2 + λ3) They modified the equation as follows. (2009) RVI = 8 * σ0hv / (σ0hh + σ0vv +σ0hv ) by L-band full-polarimetric SAR data.
Y. Yamada
doaj   +1 more source

The distribution and amount of carbon in the largest peatland complex in Amazonia [PDF]

, 2014
This work was funded by NERC grants NE/I021217/1 and NE/J50001X/1.Peatlands in Amazonian Peru are known to store large quantities of carbon, but there is high uncertainty in the spatial extent and total carbon stocks of these ecosystems.
Draper, FC, Torres Montenegro, Luis, Honorio Coronado, EN, Luis Torres Montenegro, Ricardo Zaráte, Roucoux, Katherine H, Mitchard, Edward T A, Honorio Coronado, Euridice N, Lahteenoja, Outi, Draper, Frederick C, Roucoux, KH, Zarate, Ricardo, Frederick C Draper, Edward T A Mitchard, Torres Montenegro, L, Euridice N Honorio Coronado, Lawson, IT, Outi Lähteenoja, Katherine H Roucoux, Roucoux, Katherine Helen, Ian T Lawson, Baker, Timothy, Lahteenoja, O, Honorio Coronado, Euridice, Draper, Frederick, Lawson, Ian Thomas, Baker, Timothy R, Zarate, R, Lawson, Ian T, Valderrama Sandoval, Elvis, Baker, TR, Valderrama Sandoval, E, Mitchard, Edward, Mitchard, ETA, Timothy R Baker, Elvis Valderrama Sandoval   +35 more
core   +1 more source

ALOS PALSAR Products Verification [PDF]

, 2007
ALOS, an enhanced successor of the Japanese Earth Resources Satellite 1 (JERS-1), was launched from JAXA’s Tanegashima Space Center in January 2006. ALOS operates from a sun-synchronous orbit at 691 km, with a 46-day recurrence cycle carrying a payload ...
K.P. Papathanassiou, Meininger, Martin, A.J. Rye, M. Zink, Marquart, Nicolas, P. Wright, M. Meininger, Wright, Patricia, B. Rosich Tell, I. Navas Traver, Zink, Manfred, P.J. Meadows, Meadows, Peter, Navas Traver, Ignacio, Rye, Anthony, Papathanassiou, Konstantinos, Rosich Tell, Betlem, Börner, Thomas, N. Marquart, T. Borner   +19 more
core   +1 more source

Combination of PALSAR-2 Observation and VDES Operation for Monitoring Illegal, Unreported and Unregulated Fishing Activities [PDF]

, 2023
Indonesian Exclusive Economic Zone (EEZ) is the sixth largest in the world. Fisheries in Indonesian EEZ are active and producing high amount of products, but illegal, unreported and unregulated (IUU) fishing activities are also recognized. For monitoring
Nakamura, Shinsaku
core   +1 more source

Multi-Sensor InSAR Analysis of Progressive Land Subsidence over the Coastal City of Urayasu, Japan

Remote Sensing, 2018
In earthquake-prone areas, identifying patterns of ground deformation is important before they become latent risk factors. As one of the severely damaged areas due to the 2011 Tohoku earthquake in Japan, Urayasu City in Chiba Prefecture has been ...
Yusupujiang Aimaiti, Fumio Yamazaki, Wen Liu   +2 more
doaj   +1 more source

Interferometric Synthetic Aperture Radar (InSAR) for Monitoring Seasonal Snow

Water Resources Research, Volume 62, Issue 9, September 2026.
Abstract Interferometric Synthetic Aperture Radar (InSAR) offers a potential pathway for measuring seasonal snow water equivalent (SWE) and snow depth at spatial and temporal scales needed for basin‐scale hydrology. First proposed for seasonal snow more than 25 years ago, InSAR uses repeat‐pass radar phase differences to estimate changes in SWE or ...
Jack Tarricone, Ross T. Palomaki, Randall Bonnell, Zachary Hoppinen, Shadi Oveisgharan, Jorge Jorge Ruiz, Hans‐Peter Marshall, Elias J. Deeb, Carrie Vuyovich, Steven A. Margulis, Simon Yueh, Richard R. Forster, Ryan W. Webb, Daniel McGrath, Juha Lemmetyinen, Kelly Elder, Rashmi Shah, Xiaolan Xu   +17 more
wiley   +1 more source

The Ascension Island experiment:measurement of ionospheric scintillation effects on PALSAR-2 [PDF]

, 2015
The effect of the ionosphere on SAR imaging has been studied previously from both an analytic and a numerical simulation perspective. Recently, effects visible in SAR imagery have been ascribed to turbulence in the ionosphere.
Belcher, David, Gustavsson, Anders, D. P. Belcher, P. S. Cannon, A. Gustavsson, Cannon, P.S.; id_orcid   +5 more
core   +1 more source

Comparison of multi-source remote sensing data for estimating and mapping above-ground biomass in the West Usambara tropical montane forests

Scientific African, 2023
Above-ground biomass (AGB) estimation is important to better understand the carbon cycle and improve the efficiency of forest policy and management activities.
Sami D. Madundo, Ernest W. Mauya, Charles J. Kilawe   +2 more
doaj   +1 more source