Results 21 to 30 of about 17,654,311 (211)

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

GA-SVR Algorithm for Improving Forest Above Ground Biomass Estimation Using SAR Data

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021
Synthetic aperture radar (SAR) features have been demonstrated that they have the potentiality to improve forest above ground biomass (AGB) estimation accuracy, especially including polarimetric information.
Yongjie Ji, Kunpeng Xu, Peng Zeng, Wangfei Zhang   +3 more
doaj   +1 more source

REPEAT PASS INTERFEROMETRY USING ALOS-2 PALSAR-2 DATA (STUDY CASE IN BRAZIL) [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020
We performed a process called SAR Interferometry (InSAR) to generate Digital Elevation Models (DEMs) from data pairs of the PALSAR-2 Synthetic Aperture Radar, from the ALOS-2 satellite.
R. A. S. Rosa, C. G. Oliveira, T. G. Rodrigues, E. P. Moreira, V. M. Oliveira, V. M. Oliveira   +5 more
doaj   +1 more source

SAR-Based Flood Monitoring for Flatland with Frequently Fluctuating Water Surfaces: Proposal for the Normalized Backscatter Amplitude Difference Index (NoBADI)

Remote Sensing, 2021
Space-based synthetic aperture radar (SAR) is a powerful tool for monitoring flood conditions over large areas without the influence of clouds and daylight.
Hiroto Nagai, Takahiro Abe, Masato Ohki
doaj   +1 more source

Mapping Prominent Cash Crops Employing ALOS PALSAR-2 and Selected Machine Learners

, 2022
Monitoring crops area is essential in achieving food security. The production coverage, crop types, and their growth phases are the key for monitoring food supply. Remote sensing plays a critical role to provide reliable data on regional basis supporting
Apan, Armando, Panuju, Dyah R., Haerani, H., Trisasongko, Bambang Hendro, Griffin, Amy L., Paull, David J.   +5 more
core   +1 more source

COMPARISON OF THE USE OF SENTINEL-1 SAR AND ALOS-2 PALSAR-2 IN MANGROVE ABOVEGROUND BIOMASS ESTIMATION IN SAN JUAN, BATANGAS, PHILIPPINES [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
This study compares the potential of Sentinel-1 and ALOS-2 PALSAR-2 in estimating mangrove aboveground biomass (AGB) in San Juan, Batangas, Philippines. Mangrove forests are essential coastal ecosystems that are facing growing threats.
J. J. Bilolo, J. V. Dida, A. Araza
doaj   +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

Estimation of forest stem volume using ALOS-2 PALSAR-2 satellite images [PDF]

2016 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2016
A first evaluation of ALOS PALSAR data for forest stem volume estimation has been performed at a coniferous dominated test site in Sweden. In total, 7 Fine Beam Single polarization (FBS, look angle 34.3deg, HH-polarization) and 7 Polarimetric (PLR, look angle 21.5deg, HH-, HV-, VH-, and W- polarization) SAR images were used.
Johan E. S. Fransson, Maurizio Santoro, Jörgen Wallerman, Henrik J. Persson, Albert R. Monteith, Leif E. B. Eriksson, Mats Nilsson, Håkan Olsson, Maciej J. Soja, Lars M. H. Ulander   +9 more
openaire   +2 more sources

RIP CURRENTS SIGNATURES ZONE DETECTION ON ALOS PALSAR IMAGE AT PARANGTRITIS BEACH, INDONESIA

Indonesian Journal of Geography, 2013
Having bay and gulf morphology as cresentic beach, Parangtritis coast has been known potentially threat by rip currents hazard. This study aims to identify and detect breaking waves region and surf zone on ALOS PALSAR images, and identify and extract the
Arry Retnowati, Muh Aris Marfai, J.T. Sri Sumantyo   +2 more
doaj   +1 more source

DETECTING DISASTER DAMAGE FROM 2015 TYPHOON ETAU BY THE COMBINED USE OF DIFFERENT SAR SATELLITES [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016
In this study, focusing on the flood damages in Joso City in Ibaraki Prefecture, we estimated the extent of inundation using multiple SAR satellites and examined their varied results depending on observational bands.
K. Honda, K. Fujihira, N. Asada, A. Fukushima, N. Mushiake   +4 more
doaj   +1 more source