Remote Sensing

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A New Urban Functional Zone-Based Climate Zoning System for Urban Temperature Study
Remote Sensing - Tập 13 Số 2 - Trang 251
Zhaowu Yu, Yongcai Jing, Gaoyuan Yang, Ranhao Sun
The urban heat island (UHI) effect has been recognized as one of the most significant terrestrial surface climate-related consequences of urbanization. However, the traditional definition of the urban–rural (UR) division and the newly established local climate zone (LCZ) classification for UHI and urban climate studies do not adequately express the pattern and intensity of UHI. Moreover, t...... hiện toàn bộ
Variation of Net Primary Production and Its Correlation with Climate Change and Anthropogenic Activities over the Tibetan Plateau
Remote Sensing - Tập 10 Số 9 - Trang 1352
Zhaohui Luo, Wei-Ping Wu, Xijun Yu, Qingmei Song, Jian Yang, Jiahui Wu, Hengjun Zhang
Grasslands in the Tibetan Plateau are claimed to be sensitive and vulnerable to climate change and anthropogenic activities. Quantifying the impacts of climate change and anthropogenic activities on grassland growth is an essential step for developing sustainable grassland ecosystem management strategies under the background of climate change and increasing anthropogenic activities occurri...... hiện toàn bộ
Primary Production, an Index of Climate Change in the Ocean: Satellite-Based Estimates over Two Decades
Remote Sensing - Tập 12 Số 5 - Trang 826
Gemma Kulk, Trevor Platt, James Dingle, T. J. Jackson, Bror Jönsson, Heather Bouman, Marcel Babin, Robert J. W. Brewin, Martina A. Doblin, Marta Estrada, F. G. Figueiras, Ken Furuya, Natalia González, Hafsteinn Guðfinnsson, Kristinn Guðmundsson, Bangqin Huang, Tomonori Isada, Žarko Kovač, Vivian A. Lutz, Emilio Marañón, Mini Raman, Katherine Richardson, Patrick Rozema, Willem H. van de Poll, Valeria Segura, Gavin H. Tilstone, Julia Uitz, Virginie van Dongen‐Vogels, Takashi Yoshikawa, Shubha Sathyendranath
Primary production by marine phytoplankton is one of the largest fluxes of carbon on our planet. In the past few decades, considerable progress has been made in estimating global primary production at high spatial and temporal scales by combining in situ measurements of primary production with remote-sensing observations of phytoplankton biomass. One of the major challenges in this approac...... hiện toàn bộ
Reconstruction of Ocean Color Data Using Machine Learning Techniques in Polar Regions: Focusing on Off Cape Hallett, Ross Sea
Remote Sensing - Tập 11 Số 11 - Trang 1366
Jinku Park, Jeong‐Hoon Kim, Hyun‐Cheol Kim, Bong-Kuk Kim, Dukwon Bae, Young‐Heon Jo, Naeun Jo, Sang Heon Lee
The most problematic issue in the ocean color application is the presence of heavy clouds, especially in polar regions. For that reason, the demand for the ocean color application in polar regions is increased. As a way to overcome such issues, we conducted the reconstruction of the chlorophyll-a concentration (CHL) data using the machine learning-based models to raise the usability of CHL...... hiện toàn bộ
Edge Detection and Feature Line Tracing in 3D-Point Clouds by Analyzing Geometric Properties of Neighborhoods
Remote Sensing - Tập 8 Số 9 - Trang 710
Huan Ni, Xiangguo Lin, Xiaogang Ning, Jixian Zhang
This paper presents an automated and effective method for detecting 3D edges and tracing feature lines from 3D-point clouds. This method is named Analysis of Geometric Properties of Neighborhoods (AGPN), and it includes two main steps: edge detection and feature line tracing. In the edge detection step, AGPN analyzes geometric properties of each query point’s neighborhood, and then combine...... hiện toàn bộ
Combined Use of Airborne Lidar and DBInSAR Data to Estimate LAI in Temperate Mixed Forests
Remote Sensing - Tập 4 Số 6 - Trang 1758-1780
Alicia Peduzzi, Randolph H. Wynne, Valerie A. Thomas, Ross Nelson, James J. Reis, Mark Sanford
The objective of this study was to determine whether leaf area index (LAI) in temperate mixed forests is best estimated using multiple-return airborne laser scanning (lidar) data or dual-band, single-pass interferometric synthetic aperture radar data (from GeoSAR) alone, or both in combination. In situ measurements of LAI were made using the LiCor LAI-2000 Plant Canopy Analyzer on 61 plots...... hiện toàn bộ
An MT-InSAR Data Partition Strategy for Sentinel-1A/B TOPS Data
Remote Sensing - Tập 14 Số 18 - Trang 4562
Yuexin Wang, Guangcai Feng, Zhixiong Feng, Yuedong Wang, Xiuhua Wang, Shuran Luo, Yinggang Zhao, Hao Lu
The Sentinel-1A/B satellite launched by European Space Agency (ESA) in 2014 provides a huge amount of free Terrain Observation by Progressive Scans (TOPS) data with global coverage to the public. The TOPS data have a frame width of 250 km and have been widely used in surface deformation monitoring. However, traditional Multi-Temporal Interferometric Synthetic Aperture Radar (MT-InSAR) meth...... hiện toàn bộ
LiCSAR: An Automatic InSAR Tool for Measuring and Monitoring Tectonic and Volcanic Activity
Remote Sensing - Tập 12 Số 15 - Trang 2430
Milan Lazecký, Karsten Spaans, Pablo J. González, Yasser Maghsoudi, Yu Morishita, F. Albino, John R. Elliott, Nicholas Greenall, Emma Hatton, Andrew Hooper, Daniel Juncu, Alistair McDougall, R. J. Walters, C. Scott Watson, Jonathan Weiss, Tim Wright
Space-borne Synthetic Aperture Radar (SAR) Interferometry (InSAR) is now a key geophysical tool for surface deformation studies. The European Commission’s Sentinel-1 Constellation began acquiring data systematically in late 2014. The data, which are free and open access, have global coverage at moderate resolution with a 6 or 12-day revisit, enabling researchers to investigate large-scale ...... hiện toàn bộ
Evaluation of the SBAS InSAR Service of the European Space Agency’s Geohazard Exploitation Platform (GEP)
Remote Sensing - Tập 9 Số 12 - Trang 1291
Jorge Pedro Galvé, José Vicente Perez‐Peña, José Miguel Azañón, Damien Closson, Fabiana Calò, Cristina Reyes‐Carmona, A. Jabaloy, Patricia Ruano, Rosa María Mateos, Davide Notti, Gerardo Herrera, Marta Béjar‐Pizarro, Oriol Monserrat, Philippe Bally
The analysis of remote sensing data to assess geohazards is being improved by web-based platforms and collaborative projects, such as the Geohazard Exploitation Platform (GEP) of the European Space Agency (ESA). This paper presents the evaluation of a surface velocity map that is generated by this platform. The map was produced through an unsupervised Multi-temporal InSAR (MTI) analysis ap...... hiện toàn bộ
Semi-Automatic Identification and Pre-Screening of Geological–Geotechnical Deformational Processes Using Persistent Scatterer Interferometry Datasets
Remote Sensing - Tập 11 Số 14 - Trang 1675
Roberto Tomás, José Ignacio Pagán, José A. Navarro, Miguel Cano, José Luis Pastor, Adrián Riquelme, María Cuevas-González, Michele Crosetto, Anna Barra, Oriol Monserrat, Juan M. López‐Sánchez, Alfredo Ramón Morte, Salvador Ivorra, Matteo Del Soldato, Lorenzo Solari, Silvia Bianchini, Federico Raspini, F. Novali, A. Ferretti, E. Costantini, Francesco Trillo, Gerardo Herrera, Nicola Casagli
This work describes a new procedure aimed to semi-automatically identify clusters of active persistent scatterers and preliminarily associate them with different potential types of deformational processes over wide areas. This procedure consists of three main modules: (i) ADAfinder, aimed at the detection of Active Deformation Areas (ADA) using Persistent Scatterer Interferometry (PSI) dat...... hiện toàn bộ
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