Results 71 to 80 of about 24,575,784 (165)

Estimation and Compensation of the Ionospheric Path Delay Phase in PALSAR-3 and NISAR-L Interferograms

open access: yesAtmosphere
Spatial and temporal variation in the free electron concentration in the ionosphere affects SAR interferograms, in particular at low radar frequencies.
Urs Wegmüller   +3 more
doaj   +1 more source

Monitoring Forest Loss in ALOS/PALSAR Time-Series with Superpixels

open access: yesRemote Sensing, 2019
We present a flexible methodology to identify forest loss in synthetic aperture radar (SAR) L-band ALOS/PALSAR images. Instead of single pixel analysis, we generate spatial segments (i.e., superpixels) based on local image statistics to track homogeneous
Charlie Marshak   +2 more
doaj   +1 more source

An Explainable and Optimized Machine Learning Framework for Multisensor Remote Sensing‐Based Land Use and Land Cover Classification

open access: yesTransactions in GIS, Volume 30, Issue 3, May 2026.
ABSTRACT Land use and land cover (LULC) mapping supports environmental monitoring and spatial planning, but classification performance often suffers in feature spaces that combine multiple data sources with redundant predictors. This study compares five feature selection methods (mRMR, ReliefF, Boruta, RFE, HSIC‐Lasso) with three tree‐based classifiers
Halil İbrahim Gündüz   +3 more
wiley   +1 more source

Assessment of PALSAR ScanSAR calibration and impacts for wetland applications

open access: yes, 2007
ALOS PI proposal 217, titled A Study of Tropical Wetlands dynamics by PALSAR and AVNIR-2 , is set out to assess the utility of ALOS AVNIR-2 and PALSAR ScanSAR data for characterization of the temporal and spatial properties of regional-scale inundation ...
ROSENQVIST Ake
core   +2 more sources

Perbandingan Akurasi Klasifikasi Penutup Lahan Hasil Penggabungan Citra ALOS AVNIR-2 dan ALOS PALSAR pada Polarisasi Berbeda dengan Transformasi Wavelet [PDF]

open access: yes, 2012
Penggabungan citra merupakan salah satu alternatif dari penggunaan citra penginderaan jauh yang konvensional atau secara individu. Penelitian ini mengkaji peningkatan akurasi klasifikasi citra ALOS PALSAR yang digabungkan dengan citra ALOS AVNIR-2 ...
Farda, Nur Mohammad; Fakultas Geografi UGM   +1 more
core  

Co- and Post-seismic Crustal Deformation Associated with the 2016 Kumamoto Earthquake Sequence Revealed by PALSAR-2 Pixel Tracking and InSAR

open access: yes, 2020
This archive includes the dataset for the co- and post-seismic displacements associated with the 2016 Kumamoto earthquake in Japan detected by ALOS-2/PALSAR-2 data. All files are formatted as the MATLAB format.
Masato Furuya, Yuji Himematsu
core   +1 more source

Estimating tropical forest biomass more accurately by integrating ALOS PALSAR and Landsat-7 ETM+ data [PDF]

open access: yes, 2013
Integration of multisensor data provides the opportunity to explore benefits emanating from different data sources. A fusion between fraction images derived from spectral mixture analysis of Landsat-7 ETM+ and phased array L-band synthetic aperture radar
van Duren, I.C.   +4 more
core   +2 more sources

Phenology and classification of abandoned agricultural land based on ALOS-1 and 2 PALSAR multi-temporal measurements

open access: yesInternational Journal of Digital Earth, 2017
Agricultural crop abandonment negatively impacts local economy and environment since land, as a resource for agriculture, is not optimally utilized. To take necessary actions to rehabilitate abandoned agricultural lands, the identification of the spatial
Noryusdiana Mohamad Yusoff   +4 more
doaj   +1 more source

Kajian karakteristik backscatter citra ALOS PALSAR pada tegakan hutan tanaman eucalyptus grandis

open access: yes, 2011
This study was performed to identify the relationship beetwen the backscatter of ALOS PALSAR having pixel size of 50 x 50 m and 6,25 x 6,25 m, and the variables of Eucalyptus grandis forest plantation stand. The main objective of the study is to identify
Woisiri, Ayub
core  

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