Results 81 to 90 of about 732,743 (205)
Quantifying Flow Velocities in River Deltas via Remotely Sensed Suspended Sediment Concentration
Geophysical Research Letters, 2023 Deltas are fragile ecosystems threatened by sea‐level rise, sediment starvation, and subsidence. Erosional/depositional processes in these systems mainly depend on the sediment supply and the spatial divergence in bed shear stress induced by hydrodynamic
Carmine Donatelli +6 more
doaj +1 more source
Journal of Geophysical Research: Biogeosciences, Volume 129, Issue 9, September 2024.Abstract Developing accurate landscape‐scale aboveground biomass (AGB) maps is critical to understanding coastal deltaic wetland resilience, as AGB influences stability and elevation dynamics in herbaceous wetlands. Here we used AVIRIS‐NG imaging spectrometer (or “hyperspectral”) data from NASA's 2021 Delta‐X mission in coastal Louisiana to map ...
Daniel Jensen +4 more
wiley +1 more source
Mapping and quantifying methane emissions from local sources using airborne imaging spectrometers [PDF]
, 2015 Most of the existing techniques for detecting, quantifying, and attributing point source emissions of methane (CH4) have relied on ground-based measurements.
Thorpe, Andrew
core
Earth and Space Science, Volume 11, Issue 8, August 2024.Abstract Methane, with a global warming potential roughly 86 times greater than carbon dioxide over a 20‐year timeframe, plays a crucial role in global warming. Remote sensing retrieval is a pivotal methodology for identifying methane emission sources, with accuracy influenced largely by surface and atmospheric properties, including aerosols.
Chenxi Feng +5 more
wiley +1 more source
High‐resolution spectral data predict taxonomic diversity in low diversity grasslands
Ecological Solutions and Evidence, Volume 5, Issue 3, July–September 2024.We tested the spectral variance hypothesis (SVH) in a heterogeneous, species‐rich system using high‐resolution hyperspectral imagery. Our findings indicate that the correlation between spectral and taxonomic diversity varies with spatial resolution and is context‐dependent, particularly in recently burned areas dominated by C3 grasses.
Meghan T. Hayden +5 more
wiley +1 more source
Scientific and Technical Assistance for the Deployment of a Flexible Airborne Spectrometer System During C-MAPExp and COMEX [PDF]
The COMEX (CO2 and MEthane eXperiment) campaign supports the mission definition of CarbonSat and HyspIRI (Hyperspectral Infrared Imager) by providing representative airborne remote sensing data MAMAP (Methane Airborne MAPper) for CarbonSat; the Airborne
Borchard, J. +13 more
core +1 more source
Evaluation of PRISMA Products Over Snow in the Alps and Antarctica
Earth and Space Science, Volume 11, Issue 7, July 2024.Abstract PRISMA is a hyperspectral satellite mission launched by the Italian Space Agency (ASI) in April 2019. The mission is designed to collect data at global scale for a variety of applications, including those related to the cryosphere. This study presents an evaluation of PRISMA Level 1 (L1) and Level 2 (L2D) products for different snow conditions.
B. Di Mauro +14 more
wiley +1 more source
DEVELOPING INNOVATIVE SPECTRAL AND MACHINE LEARNING METHODS FOR MINERAL AND LITHOLOGICAL CLASSIFICATION USING MULTI-SENSOR DATASETS [PDF]
, 2020 The sustainable exploration of mineral resources plays a significant role in the economic development of any nation. The lithological maps and surface mineral distribution can be vital baseline data to narrow down the geochemical and geophysical analysis
Kumar, Chandan
core +1 more source
Radiometrically-Accurate Hyperspectral Data Sharpening [PDF]
, 2022 Improving the spatial resolution of hyperpsectral image (HSI) has traditionally been an important topic in the field of remote sensing. Many approaches have been proposed based on various theories including component substitution, multiresolution ...
Huang, Sihan
core +1 more source
Geophysical Research Letters, Volume 51, Issue 10, 28 May 2024.Abstract China is likely the world's largest anthropogenic source of methane emissions, with coal mine methane (CMM) being the predominant contributor. Here, we deploy 2 years of satellite observations to survey facility‐level CMM emitters in Shanxi, the most prolific coal mining province in China.
Ge Han +8 more
wiley +1 more source