Explanipedia

Spatial extrapolation in soil salinity and future land cover using hybrid machine learning and land change modeler: case study in the Mekong Delta and the Red River Delta Open

Huu Duy Nguyen, Quang Truong, Thi Ha Thanh Nguyen, Phuong Lan Vu, Le Tuan Pham , et al. · 2025

Soil salinity is a major ecological challenge that affects agricultural productivity, posed significant challenges on the ecological system, especially in the deltaic region vulnerable to human alterations and sea level rise. Assessing agr…

Multisensor Mapping of Land Use/Land Cover Pattern in Mangrove Ecosystems: A Case Study in Cần Giờ Biosphere Reserve, Vietnam Open

Emiliana Valentini, S. V. Nghiem, Pham Thi Mai Thy, Serena Sapio, Mariano Bresciani , et al. · 2025

Spectral responses captured by satellites can be adapted for a wide range of questions and applications relevant to land use/land cover (LULC) analysis. The multitude of existing and upcoming satellites can significantly advance the study …

Monitoring the effects of climate, land cover and land use changes on multi-hazards in the Gianh River watershed, Vietnam Open

Huu Duy Nguyen, Dinh Kha Dang, Quoc‐Huy Nguyen, Tan Phan‐Van, Quang-Thanh Bui , et al. · 2024

In recent decades, global rapid urbanization has exacerbated the impacts of natural hazards due to changes in Southeast Asia’s environmental, hydrological, and socio-economic conditions. Confounding non-stationary processes of climate chan…

Passive Microwave Radiometry at Different Frequency Bands for River Discharge Retrievals Open

G. Robert Brakenridge, S. V. Nghiem, Zsófia Kugler · 2023

The present era of climate change and expanding population requires major improvements in sustained observation of global river discharge. Floods and droughts are affecting food supplies, and suspected long‐term trends require appropriate …

Ice Freeze‐Up and Break‐Up in Arctic Rivers Observed With Satellite L‐Band Passive Microwave Data From 2010 to 2020 Open

Anna Podkowa, Zsófia Kugler, S. V. Nghiem, G. Robert Brakenridge · 2023

The timing of ice freeze‐up and break‐up in the Arctic may be responding to climate change. Passive microwave remote sensing is a powerful technique for monitoring this timing. We processed low‐frequency microwave time series from the Euro…

Passive Microwave Emission Theory and Applications to Satellite Measurements of Global Rivers Open

S. V. Nghiem, G. Robert Brakenridge, Zsófia Kugler, Anna Podkowa · 2023

River stage (surface water level H), discharge (volumetric water flow rate Q), and seasonal ice cover (freeze-up timing F, and break-up timing B) are crucial observables for hydrology and water cycle science. In-situ river gauging me…

Sea Ice Elevation in the Western Weddell Sea, Antarctica: Observations From Field Campaign Open

Lanqing Huang, Irena Hajnsek, S. V. Nghiem · 2022

Sea ice elevation is crucial in the characterization of three‐dimensional (3D) sea ice patterns, providing physical insights to advance sea ice dynamic models. Moreover, how sea ice elevation may be related to the ocean geophysical environ…

Theory of Radar Polarimetric Interferometry and Its Application to the Retrieval of Sea Ice Elevation in the Western Weddell Sea, Antarctic Open

S. V. Nghiem, Lanqing Huang, Irena Hajnsek · 2022

Sea ice elevation plays a crucial role in sea ice dynamic processes driven by winds and waves, for which satellite radar remote sensing becomes indispensable to monitor snow‐covered sea ice across the vast polar regions regardless of darkn…

Building Structure Mapping on Level Terrains and Sea Surfaces in Vietnam Open

Khanh Duc Ngo, S. V. Nghiem, Alex M. Lechner, Tuong Thuy Vu · 2021

Mapping building structures is crucial for environmental change and impact assessment, and is especially important to accurately estimate fossil fuel CO2 emissions from human settlements. In this regard, the objective of this study is to d…

Correction: Oveisgharan, S., et al. Evaluating the Preconditions of Two Remote Sensing SWE Retrieval Algorithms over the US, Remote Sensing 2020, 12, 2021 Open

Shadi Oveisgharan, Daniel Esteban-Fernández, Duane E. Waliser, Randall R. Friedl, S. V. Nghiem , et al. · 2020

The authors would like to add Radar to the title for more clarification [...]

Evaluating the Preconditions of Two Remote Sensing SWE Retrieval Algorithms over the US Open

Shadi Oveisgharan, Daniel Esteban-Fernández, Duane E. Waliser, Randall R. Friedl, S. V. Nghiem , et al. · 2020

A large amount of fresh water resources are stored in the snowpack, which is the primary source of water for streamflow in many places at middle-to-high latitude areas. Therefore, snow water equivalent (SWE) is a key parameter in the water…

Patterns of population displacement during mega-fires in California detected using Facebook Disaster Maps Open

Shenyue Jia, Seung Hee Kim, S. V. Nghiem, Paul Doherty, M. Kafatos · 2020

The Facebook Disaster Maps (FBDM) work presented here is the first time this platform has been used to provide analysis-ready population change products derived from crowdsourced data targeting disaster relief practices. We evaluate the re…

Transformative Urban Changes of Beijing in the Decade of the 2000s Open

Alessandro Sorichetta, S. V. Nghiem, Marco Masetti, Catherine Linard, Andreas Richter · 2020

The rapid economic growth, the exodus from rural to urban areas, and the associated extreme urban development that occurred in China in the decade of the 2000s have severely impacted the environment in Beijing, its vicinity, and beyond. Th…

Input data for "Transformative Changes of Beijing in the Decade of the 2000s" Open

Alessandro Sorichetta, S. V. Nghiem, Andreas Richter · 2020

The DSM_QSCAT_data for Beijing, representing annual infrastructure-based urban observations at a posting of ~1 km, are obtained by applying the Dense Sampling Method [https://doi.org/10.1007/978-0-387-36699-9] to Level L1B Ku-Band QuikSCAT…

Gridded CO₂ Emissions and Population for Cambodia, Laos, and Vietnam (2000,2005,2010) Open

Andrea E. Gaughan, Tomohiro Oda, Alessandro Sorichetta, Forrest R. Stevens, Maksym Bondarenko , et al. · 2020

Emissions data in this archive are the non-point source estimates from the ODIAC (Open-source Data Inventory for Anthropogenic CO₂) product. ODIAC is a global high-resolution emission data product for fossil fuel carbon dioxide (CO₂) emiss…

Input data for "Transformative Changes of Beijing in the Decade of the 2000s" Open

Alessandro Sorichetta, S. V. Nghiem, Andreas Richter · 2020

The DSM_QSCAT_data for Beijing, representing annual infrastructure-based urban observations at a posting of ~1 km, are obtained by applying the Dense Sampling Method [https://doi.org/10.1007/978-0-387-36699-9] to Level L1B Ku-Band QuikSCAT…

Input data for "Transformative Urban Changes of Beijing in the Decade of the 2000s" Open

Alessandro Sorichetta, S. V. Nghiem, Andreas Richter · 2020

The DSM_QSCAT_data for Beijing, representing annual infrastructure-based urban observations at a posting of ~1 km, are obtained by applying the Dense Sampling Method [https://doi.org/10.1007/978-0-387-36699-9] to Level L1B Ku-Band QuikSCAT…

Evaluating nighttime lights and population distribution as proxies for mapping anthropogenic CO<sub>2</sub>emission in Vietnam, Cambodia and Laos Open

Andrea E. Gaughan, Tomohiro Oda, Alessandro Sorichetta, Forrest R. Stevens, Maksym Bondarenko , et al. · 2019

Tracking spatiotemporal changes in GHG emissions is key to successful implementation of the United Nations Framework Convention on Climate Change (UNFCCC). And while emission inventories often provide a robust tool to track emission trends…

Iceberg topography and volume classification using TanDEM-X interferometry Open

Dyre Oliver Dammann, Leif E. B. Eriksson, S. V. Nghiem, Erin C. Pettit, N. T. Kurtz , et al. · 2019

Icebergs in polar regions affect water salinity, alter marine habitats, and impose serious hazards on maritime operations and navigation. These impacts mainly depend on the iceberg volume, which remains an elusive parameter to measure. We …

Estimating Live Fuel Moisture Using SMAP L-Band Radiometer Soil Moisture for Southern California, USA Open

Shenyue Jia, Seung Hee Kim, S. V. Nghiem, M. Kafatos · 2019

Live fuel moisture (LFM) is a field-measured indicator of vegetation water content and a crucial observation of vegetation flammability. This study presents a new multi-variant regression model to estimate LFM in the Mediterranean ecosyste…

Iceberg topography and volume classification using TanDEM-X interferometry Open

Dyre Oliver Dammann, Leif E. B. Eriksson, S. V. Nghiem, Erin C. Pettit, N. T. Kurtz , et al. · 2019

Icebergs in polar regions affect water salinity, alter marine habitats, and impose serious hazards on maritime operations and navigation. These impacts mainly depend on the iceberg volume, which remain an elusive parameter to measure. We i…

L-Band Passive Microwave Data from SMOS for River Gauging Observations in Tropical Climates Open

Zsófia Kugler, S. V. Nghiem, G. Robert Brakenridge · 2019

The Global Flood Detection Systems (GFDS) currently operated at the European Commission’s Joint Research Centre (JRC) is a satellite-based observation system that provides daily stream flow measurements of global rivers. The system was ini…

Snowpack measurements suggest role for multi-year sea ice regions in Arctic atmospheric bromine and chlorine chemistry Open

Peter K. Peterson, M. Hartwig, Nathaniel W. May, Evan A. Schwartz, Ignatius Rigor , et al. · 2019

As sources of reactive halogens, snowpacks in sea ice regions control the oxidative capacity of the Arctic atmosphere. However, measurements of snowpack halide concentrations remain sparse, particularly in the high Arctic, limiting our und…

Combining COSMO-SkyMed satellites data and numerical modeling for the dynamic management of artificial recharge basins Open

Marco Masetti, S. Pettinato, S. V. Nghiem, S. Paloscia, Daniele Pedretti , et al. · 2018

Estimating Live Fuel Moisture in Southern California Using Remote Sensing Vegetation Water Content Proxies Open

Shenyue Jia, Seung Hee Kim, S. V. Nghiem, Wonhee Cho, M. Kafatos · 2018

Wildfires are a major ecological disturbance in Southern California and often lead to great destruction along the Wildland-Urban Interface. Live fuel moisture has been used as an important indicator of wildfire risk in measurements of vege…

Remote Sensing of Antarctic Sea Ice with Coordinated Aircraft and Satellite Data Acquisitions Open

S. V. Nghiem, Thomas Busche, Thomas Kraus, Markus Bachmann, N. T. Kurtz , et al. · 2018

Remote sensing of Antarctic sea ice is required to characterize properties of the vast sea ice cover to understand its long-term increase in contrast to the decrease of Arctic sea ice. For this objective, the OIB/TanDEM-X Coordinated Scien…

Correction: Cost-effectiveness of national health insurance programs in high-income countries: A systematic review Open

S. V. Nghiem, Nicholas Graves, Adrian Barnett, Catherine Haden · 2018

[This corrects the article DOI: 10.1371/journal.pone.0189173.].

Estimating Live Fuel Moisture from MODIS Satellite Data for Wildfire Danger Assessment in Southern California USA Open

Boksoon Myoung, Seung Wook Kim, S. V. Nghiem, Shenyue Jia, Kristen Whitney , et al. · 2018

The goal of the research reported here is to assess the capability of satellite vegetation indices from the Moderate Resolution Imaging Spectroradiometer onboard both Terra and Aqua satellites, in order to replicate live fuel moisture cont…

GNSS Transpolar Earth Reflectometry exploriNg System (G-TERN): Mission Concept Open

Estel Cardellach, Jens Wickert, Rens Baggen, J. Benito, Adriano Camps , et al. · 2018

The global navigation satellite system (GNSS) Transpolar Earth Reflectometry exploriNg system (G-TERN) was proposed in response to ESA's Earth Explorer 9 revised call by a team of 33 multi-disciplinary scientists. The primary objective of …

Northern Eurasia Future Initiative (NEFI): facing the challenges and pathways of global change in the twenty-first century Open

Pavel Groisman, Herman H. Shugart, David W. Kicklighter, Geoffrey M. Henebry, N. M. Tchebakova , et al. · 2017

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