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Remote Sensing, Volume 13, Issue 5

2021 March-1 - 214 articles

Cover Story: Sea surface temperature (SST) is a fundamental property of the ocean surface and one of the first ocean variables to be studied using satellites. Quantifying the accuracy and precision of satellite SST data requires comparing it with in-situ data. In nearshore coastal waters this is not well known, owing to a lack of in-situ data. Here, we compare a Smartfin, a surfboard fin designed to measure ocean temperature in the nearshore, with an infrared SST autonomous radiometer (ISAR) and an underway oceanographic temperature sensor (UOTS) on an expedition through the Atlantic Ocean. We found a mean absolute difference between Smartfin and UOTS of ­0.06 K and Smartfin and ISAR of 0.12 K. Differences were related to sampling depth and environmental variability. Results add confidence to the use of Smartfin as a tool for satellite validation. View this paper
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Articles (214)

  • Article
  • Open Access
11 Citations
3,826 Views
16 Pages

Meridional Changes in Satellite Chlorophyll and Fluorescence in Optically-Complex Coastal Waters of Northern Patagonia

  • Sebastián I. Vásquez,
  • María Belén de la Torre,
  • Gonzalo S. Saldías and
  • Aldo Montecinos

9 March 2021

Northern Patagonia is one of the largest estuarine systems worldwide. It is characterized by complex geography, including islands, peninsulas, channels, and fjords. Here, the Inner Sea of Chiloé (ISC) is the largest estuarine system extending about 2...

  • Reply
  • Open Access
2,783 Views
4 Pages

Reply to Comment on “Comparison of Cloud Cover Detection Algorithms on Sentinel–2 Images of the Amazon Tropical Forest”

  • Alber Hamersson Sanchez,
  • Michelle Cristina A. Picoli,
  • Gilberto Camara,
  • Pedro R. Andrade,
  • Michel Eustaquio D. Chaves,
  • Sarah Lechler,
  • Anderson R. Soares,
  • Rennan F. B. Marujo,
  • Rolf Ezequiel O. Simões and
  • Gilberto R. Queiroz
  • + 1 author

9 March 2021

In their comments about our paper, the authors remark on two issues regarding our results relating to the MACCS-ATCOR Joint Algorithm (MAJA). The first relates to the sub-optimal performance of this algorithm under the conditions of our tests, while...

  • Technical Note
  • Open Access
8 Citations
5,042 Views
15 Pages

9 March 2021

The supply–demand relationship of urban public service facilities is the key to measuring a city’s service level and quality, and a balanced supply–demand relationship is an important indicator that reflects the optimal allocation of resources. To ad...

  • Technical Note
  • Open Access
5 Citations
3,551 Views
11 Pages

The Temporal Variation of Optical Depth in the Candidate Landing Area of China’s Mars Mission (Tianwen-1)

  • Zhencheng Tang,
  • Jianjun Liu,
  • Xing Wang,
  • Xin Ren,
  • Wei Yan and
  • Wangli Chen

9 March 2021

The atmospheric dust is an important factor in the evolution of the Martian climate and has a major impact on the scientific exploration of the Martian lander or rover and its payload. This paper used remote sensing images to calculate atmospheric op...

  • Article
  • Open Access
23 Citations
5,450 Views
16 Pages

Sentinel-1 Polarimetry to Map Apple Orchard Damage after a Storm

  • Samuele De Petris,
  • Filippo Sarvia,
  • Michele Gullino,
  • Eufemia Tarantino and
  • Enrico Borgogno-Mondino

9 March 2021

Climate change increases extreme whether events such as floods, hailstorms, or storms, which can affect agriculture, causing damages and economic loss within the agro-food sector. Optical remote sensing data have been successfully used in damage dete...

  • Article
  • Open Access
21 Citations
5,450 Views
18 Pages

9 March 2021

Forests contribute significantly to terrestrial biodiversity conservation. Monitoring of tree species diversity is vital due to climate change factors. Remote sensing imagery is a means of data collection for predicting diversity of tree species. Sin...

  • Article
  • Open Access
23 Citations
5,926 Views
23 Pages

The Decrease in Lake Numbers and Areas in Central Asia Investigated Using a Landsat-Derived Water Dataset

  • Xianghong Che,
  • Min Feng,
  • Qing Sun,
  • Joseph O. Sexton,
  • Saurabh Channan and
  • Jiping Liu

9 March 2021

Although Central Asia has a strong continental climate with a constant moisture deficit and low relative humidity, it is covered by thousands of lakes that are critical to the sustainability of ecosystems and human welfare in the region. Vulnerabilit...

  • Article
  • Open Access
4 Citations
4,709 Views
18 Pages

9 March 2021

GNSS Reflectometry (GNSS-R), a method of remote sensing using the reflections from satellite navigation systems, was initially envisaged for ocean wind speed sensing. In recent times there has been significant interest in the use of GNSS-R for sensin...

  • Article
  • Open Access
8 Citations
3,081 Views
26 Pages

9 March 2021

Many Beidou navigation satellite system (BDS) receivers or boards provide dual-frequency measurements to conduct precise positioning and navigation for low-power consumption. Cycle-slip processing is a primary work to guarantee consistent, precise po...

  • Article
  • Open Access
10 Citations
5,441 Views
20 Pages

9 March 2021

The extent, timing, and magnitude of soil moisture in wetlands (the hydropattern) is a primary physical control on biogeochemical processes in desert environments. However, determining playa hydropatterns is challenged by the remoteness of desert bas...

  • Article
  • Open Access
27 Citations
7,260 Views
18 Pages

Dynamics of Vibrio cholerae in a Typical Tropical Lake and Estuarine System: Potential of Remote Sensing for Risk Mapping

  • Abdulaziz Anas,
  • Kiran Krishna,
  • Syamkumar Vijayakumar,
  • Grinson George,
  • Nandini Menon,
  • Gemma Kulk,
  • Jasmin Chekidhenkuzhiyil,
  • Angelo Ciambelli,
  • Hridya Kuttiyilmemuriyil Vikraman and
  • Shubha Sathyendranath
  • + 5 authors

9 March 2021

Vibrio cholerae, the bacterium responsible for the disease cholera, is a naturally-occurring bacterium, commonly found in many natural tropical water bodies. In the context of the U.N. Sustainable Development Goals (SDG) targets on health (Goal 3), w...

  • Article
  • Open Access
23 Citations
5,130 Views
20 Pages

UAV-Based Estimate of Snow Cover Dynamics: Optimizing Semi-Arid Forest Structure for Snow Persistence

  • Adam Belmonte,
  • Temuulen Sankey,
  • Joel Biederman,
  • John Bradford,
  • Scott Goetz and
  • Thomas Kolb

9 March 2021

Seasonal snow cover in the dry forests of the American West provides essential water resources to both human and natural systems. The structure of trees and their arrangement across the landscape are important drivers of snow cover distribution acros...

  • Article
  • Open Access
26 Citations
4,857 Views
20 Pages

The Effect of Forest Mask Quality in the Wall-to-Wall Estimation of Growing Stock Volume

  • Elia Vangi,
  • Giovanni D’Amico,
  • Saverio Francini,
  • Francesca Giannetti,
  • Bruno Lasserre,
  • Marco Marchetti,
  • Ronald E. McRoberts and
  • Gherardo Chirici

9 March 2021

Information about forest cover and its characteristics are essential in national and international forest inventories, monitoring programs, and reporting activities. Two of the most common forest variables needed to support sustainable forest managem...

  • Article
  • Open Access
28 Citations
6,238 Views
22 Pages

9 March 2021

Precipitation data provide a crucial input for examining hydrological issues, including watershed management and mitigation of the effects of floods, drought, and landslides. However, they are collected frequently from the scarce and often insufficie...

  • Article
  • Open Access
25 Citations
6,931 Views
30 Pages

Applying Close Range Non-Destructive Techniques for the Detection of Conservation Problems in Rock-Carved Cultural Heritage Sites

  • William Frodella,
  • Mikheil Elashvili,
  • Daniele Spizzichino,
  • Giovanni Gigli,
  • Akaki Nadaraia,
  • Giorgi Kirkitadze,
  • Luka Adikashvili,
  • Claudio Margottini,
  • Nikoloz Antidze and
  • Nicola Casagli

9 March 2021

Rock-carved cultural heritage sites are often developed in slopes formed by weak rocks, which due to their peculiar lithological, geotechnical, and morpho-structural features are characterized by excellent carvability, which at the same time makes th...

  • Article
  • Open Access
8 Citations
4,117 Views
15 Pages

The Horizontal Distribution of Branch Biomass in European Beech: A Model Based on Measurements and TLS Based Proxies

  • César Pérez-Cruzado,
  • Christoph Kleinn,
  • Paul Magdon,
  • Juan Gabriel Álvarez-González,
  • Steen Magnussen,
  • Lutz Fehrmann and
  • Nils Nölke

9 March 2021

Forest biomass is currently among the most important and most researched target variables in forest monitoring. The common approach of observing individual tree biomass in forest inventory is to assign the total tree biomass to the dimensionless poin...

  • Article
  • Open Access
13 Citations
4,256 Views
22 Pages

9 March 2021

The detection of low stratus and fog (LSF) at dawn remains limited because of their optical features and weak solar radiation. LSF could be better identified by simultaneous observations of two geostationary satellites from different viewing angles....

  • Article
  • Open Access
74 Citations
11,659 Views
27 Pages

Deriving Water Quality Parameters Using Sentinel-2 Imagery: A Case Study in the Sado Estuary, Portugal

  • Giulia Sent,
  • Beatriz Biguino,
  • Luciane Favareto,
  • Joana Cruz,
  • Carolina Sá,
  • Ana Inés Dogliotti,
  • Carla Palma,
  • Vanda Brotas and
  • Ana C. Brito

9 March 2021

Monitoring water quality parameters and their ecological effects in transitional waters is usually performed through in situ sampling programs. These are expensive and time-consuming, and often do not represent the total area of interest. Remote sens...

  • Article
  • Open Access
4 Citations
3,993 Views
21 Pages

Examining Relationships between Heat Requirement of Remotely Sensed Green-Up Date and Meteorological Indicators in the Hulun Buir Grassland

  • Jian Guo,
  • Xiuchun Yang,
  • Fan Chen,
  • Jianming Niu,
  • Sha Luo,
  • Min Zhang,
  • Yunxiang Jin,
  • Ge Shen,
  • Ang Chen and
  • Bin Xu
  • + 2 authors

9 March 2021

The accumulation of heat and moderate precipitation are the primary factors that are used by grasslands to trigger a green-up date. The accumulated growing degree-days (AGDD) requirement over the preseason is an important indicator of the response of...

  • Article
  • Open Access
11 Citations
6,960 Views
18 Pages

8 March 2021

Remote sensing (RS) technology, which can facilitate the sustainable management and development of fisheries, is easily accessible and exhibits high performance. It only requires the collection of sufficient information, establishment of databases an...

  • Article
  • Open Access
38 Citations
4,137 Views
21 Pages

8 March 2021

Target tracking is a process that provides information about targets in a specific area and is one of the key issues affecting the safety of any vehicle navigating in water. The main sensor used for underwater target tracking is sonar, with one of th...

  • Article
  • Open Access
42 Citations
4,766 Views
18 Pages

8 March 2021

As a crucial parameter in estimating precipitable water vapor from tropospheric delay, the weighted mean temperature (Tm) plays an important role in Global Navigation Satellite System (GNSS)-based water vapor monitoring techniques. However, the rigor...

  • Article
  • Open Access
2 Citations
3,670 Views
23 Pages

8 March 2021

Accurately and reliably estimating total terrestrial gross primary production (GPP) on a large scale is of great significance for monitoring the carbon cycle process. The Sentinel-3 satellite provides the OLCI FAPAR and OTCI products, which possess a...

  • Article
  • Open Access
22 Citations
4,505 Views
27 Pages

Spatiotemporal Variability of Mesoscale Eddies in the Indonesian Seas

  • Zhanjiu Hao,
  • Zhenhua Xu,
  • Ming Feng,
  • Qun Li and
  • Baoshu Yin

8 March 2021

Mesoscale eddies are ubiquitous in the world ocean and well researched both globally and regionally, while their properties and distributions across the whole Indonesian Seas are not yet fully understood. This study investigates for the first time th...

  • Article
  • Open Access
19 Citations
4,589 Views
25 Pages

8 March 2021

It has become increasingly difficult in recent years to predict precipitation scientifically and accurately due to the dual effects of human activities and climatic conditions. This paper focuses on four aspects to improve precipitation prediction ac...

  • Article
  • Open Access
27 Citations
4,195 Views
18 Pages

8 March 2021

This study explored the model of urban impervious surface (IS) density, land surface temperature (LST), and comprehensive ecological evaluation index (CEEI) from urban centers to suburbs. The interrelationships between these parameters in Guangzhou f...

  • Article
  • Open Access
27 Citations
6,782 Views
28 Pages

8 March 2021

Oil extraction and transportation may lead to small or large scale accidental spills, whether at sea or on land. Detecting these spills is a major problem that can be addressed by means of hyperspectral images and specific processing methods. In this...

  • Article
  • Open Access
27 Citations
4,489 Views
18 Pages

8 March 2021

Artificial terraces are of great importance for agricultural production and soil and water conservation. Automatic high-accuracy mapping of artificial terraces is the basis of monitoring and related studies. Previous research achieved artificial terr...

  • Comment
  • Open Access
3 Citations
3,320 Views
3 Pages

8 March 2021

In their recent study, Sanchez et al. compared various cloud detection methods applied to Sentinel-2, specifically on images acquired over the Amazonian region, known for its frequent cloud cover. Comparison of cloud screening methods for optical sat...

  • Article
  • Open Access
29 Citations
5,429 Views
23 Pages

8 March 2021

As widely applicated in many underwater research fields, conventional side-scan sonars require the sonar height to be at the seabed for geocoding seabed images. However, many interference factors, including compensation with unknown gains, suspended...

  • Article
  • Open Access
22 Citations
4,036 Views
18 Pages

8 March 2021

With the development of the global navigation satellite system(GNSS), the hourly ultra-rapid products of GNSS are attracting more attention due to their low latency and high accuracy. A new strategy and method was applied by the Shanghai Astronomical...

  • Article
  • Open Access
50 Citations
5,348 Views
23 Pages

Bio-Inspired Hybridization of Artificial Neural Networks: An Application for Mapping the Spatial Distribution of Soil Texture Fractions

  • Ruhollah Taghizadeh-Mehrjardi,
  • Mostafa Emadi,
  • Ali Cherati,
  • Brandon Heung,
  • Amir Mosavi and
  • Thomas Scholten

8 March 2021

Soil texture and particle size fractions (PSFs) are a critical characteristic of soil that influences most physical, chemical, and biological properties of soil; furthermore, reliable spatial predictions of PSFs are crucial for agro-ecological modeli...

  • Article
  • Open Access
15 Citations
4,286 Views
26 Pages

Shipborne Mobile Photogrammetry for 3D Mapping and Landslide Detection of the Water-Level Fluctuation Zone in the Three Gorges Reservoir Area, China

  • Dingjian Jin,
  • Jing Li,
  • Jianhua Gong,
  • Yi Li,
  • Zheng Zhao,
  • Yongzhi Li,
  • Dan Li,
  • Kun Yu and
  • Shanshan Wang

7 March 2021

The water-level fluctuation zone (WLFZ) of the Three Gorges Reservoir is a serious landslide-prone area. However, current remote sensing methods for landslide mapping and detection in the WLFZ are insufficient because of difficulties in data acquisit...

  • Article
  • Open Access
203 Citations
11,162 Views
24 Pages

7 March 2021

The intensity of human activity, habitat loss and habitat degradation have significant impacts on biodiversity. Habitat quality plays an important role in spatial dynamics when evaluating fragmented landscapes and the effectiveness of biodiversity co...

  • Article
  • Open Access
15 Citations
3,923 Views
19 Pages

7 March 2021

Accurate estimation of fractional vegetation cover (FVC) from digital images taken by commercially available cameras is of great significance in order to monitor the vegetation growth status, especially when plants are under water stress. Two classic...

  • Article
  • Open Access
20 Citations
3,500 Views
16 Pages

Ionosonde Observations of Spread F and Spread Es at Low and Middle Latitudes during the Recovery Phase of the 7–9 September 2017 Geomagnetic Storm

  • Lehui Wei,
  • Chunhua Jiang,
  • Yaogai Hu,
  • Ercha Aa,
  • Wengeng Huang,
  • Jing Liu,
  • Guobin Yang and
  • Zhengyu Zhao

7 March 2021

This study presents observations of nighttime spread F/ionospheric irregularities and spread Es at low and middle latitudes in the South East Asia longitude of China sectors during the recovery phase of the 7–9 September 2017 geomagnetic storm. In th...

  • Review
  • Open Access
22 Citations
5,858 Views
14 Pages

Review of Road Segmentation for SAR Images

  • Zengguo Sun,
  • Hui Geng,
  • Zheng Lu,
  • Rafał Scherer and
  • Marcin Woźniak

7 March 2021

Road segmentation for synthetic aperture radar (SAR) images is of great practical significance. With the rapid development and wide application of SAR imaging technology, this problem has attracted much attention. At present, there are numerous road...

  • Article
  • Open Access
16 Citations
4,227 Views
25 Pages

7 March 2021

Over the past decade, satellite imaging has become a habitual way to determine the land surface temperature (LST). One means entails the use of Landsat 8 images, for which mono window (MW), single channel (SC) and split window (SW) algorithms are nee...

  • Article
  • Open Access
12 Citations
5,077 Views
23 Pages

An Image Stitching Method for Airborne Wide-Swath HyperSpectral Imaging System Equipped with Multiple Imagers

  • Jingmei Li,
  • Lingling Ma,
  • Yongxiang Fan,
  • Ning Wang,
  • Keke Duan,
  • Qijin Han,
  • Xuyuan Zhang,
  • Guozhong Su,
  • Chuanrong Li and
  • Lingli Tang

6 March 2021

The field of view (FOV) of pushbroom hyperspectral imager is limited by the compromise of the detector scale and requirements of spatial resolution. Combining imagers along the sampling direction effectively expands its FOV and improves the imaging e...

  • Article
  • Open Access
16 Citations
4,206 Views
18 Pages

KVGCN: A KNN Searching and VLAD Combined Graph Convolutional Network for Point Cloud Segmentation

  • Nan Luo,
  • Hongquan Yu,
  • Zhenfeng Huo,
  • Jinhui Liu,
  • Quan Wang,
  • Ying Xu and
  • Yun Gao

6 March 2021

Semantic segmentation of the sensed point cloud data plays a significant role in scene understanding and reconstruction, robot navigation, etc. This work presents a Graph Convolutional Network integrating K-Nearest Neighbor searching (KNN) and Vector...

  • Article
  • Open Access
8 Citations
4,258 Views
26 Pages

6 March 2021

Accurately identifying sunlit and shaded leaves using process-based ecological models can improve the simulation accuracy of forest photosynthetic rates and potential carbon sequestration capacity. However, it is still challenging to characterize the...

  • Article
  • Open Access
32 Citations
4,210 Views
18 Pages

6 March 2021

The meteorological reanalysis data has been widely applied to derive zenith tropospheric delay (ZTD) with a high spatial and temporal resolution. With the rapid development of artificial intelligence, machine learning also begins as a high-efficiency...

  • Communication
  • Open Access
19 Citations
4,163 Views
12 Pages

6 March 2021

Biomass burning is a major source of greenhouse gases (GHGs) and particulate matter (PM) emissions in China. Despite increasing efforts of fire monitoring, it remains challenging to quantify the variability in interannual and seasonal emissions of GH...

  • Article
  • Open Access
8 Citations
3,906 Views
18 Pages

6 March 2021

This research represents a contribution to the theory on the coupling of the volcanic activity and the ionospheric dynamics, represented by total electron content (TEC) patterns and their behaviour. The ionospheric response to the activity of the Etn...

  • Article
  • Open Access
35 Citations
5,276 Views
23 Pages

5 March 2021

Unmanned aerial vehicles (UAVs) can capture high-quality aerial photos and have been widely used for large-scale urban 3D reconstruction. However, even with the help of commercial flight control software, it is still a challenging task for non-profes...

  • Article
  • Open Access
61 Citations
7,179 Views
17 Pages

ABOships—An Inshore and Offshore Maritime Vessel Detection Dataset with Precise Annotations

  • Bogdan Iancu,
  • Valentin Soloviev,
  • Luca Zelioli and
  • Johan Lilius

5 March 2021

Availability of domain-specific datasets is an essential problem in object detection. Datasets of inshore and offshore maritime vessels are no exception, with a limited number of studies addressing maritime vessel detection on such datasets. For that...

  • Article
  • Open Access
77 Citations
10,234 Views
20 Pages

5 March 2021

In tropical/subtropical monsoon regions, accurate rice mapping is hampered by the following factors: (1) The frequent occurrence of clouds in such areas during the rice-growing season interferes strongly with optical remote sensing observations; (2)...

  • Article
  • Open Access
9 Citations
4,531 Views
22 Pages

Clustering of Rainfall Types Using Micro Rain Radar and Laser Disdrometer Observations in the Tropical Andes

  • Gabriela Urgilés,
  • Rolando Célleri,
  • Katja Trachte,
  • Jörg Bendix and
  • Johanna Orellana-Alvear

5 March 2021

Lack of rainfall information at high temporal resolution in areas with a complex topography as the Tropical Andes is one of the main obstacles to study its rainfall dynamics. Furthermore, rainfall types (e.g., stratiform, convective) are usually defi...

  • Article
  • Open Access
70 Citations
10,528 Views
20 Pages

Benchmarking Deep Learning Models for Cloud Detection in Landsat-8 and Sentinel-2 Images

  • Dan López-Puigdollers,
  • Gonzalo Mateo-García and
  • Luis Gómez-Chova

5 March 2021

The systematic monitoring of the Earth using optical satellites is limited by the presence of clouds. Accurately detecting these clouds is necessary to exploit satellite image archives in remote sensing applications. Despite many developments, cloud...

  • Article
  • Open Access
8 Citations
3,294 Views
22 Pages

Vertical Variability of Total and Size-Partitioned Phytoplankton Carbon in the South China Sea

  • Wendi Zheng,
  • Wen Zhou,
  • Wenxi Cao,
  • Yupeng Liu,
  • Guifen Wang,
  • Lin Deng,
  • Cai Li,
  • Yu Zhang and
  • Kai Zeng

5 March 2021

The standing stock of phytoplankton carbon is a basic and essential property for understanding oceanic ecosystems, biogeochemical cycles, and regional climates. However, current related algorithms mainly focus on remote-sensed application, which cann...

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Remote Sens. - ISSN 2072-4292