Results 41 to 50 of about 732,743 (205)

Spectral biology across scales in changing environments. [PDF]

Ecology
Abstract Understanding ecosystem processes on our rapidly changing planet requires integration across spatial, temporal, and biological scales. We propose that spectral biology, using tools that enable near‐ to far‐range sensing by capturing the interaction of energy with matter across domains of the electromagnetic spectrum, will increasingly enable ...
Cavender-Bares J, Meireles JE, Pinto-Ledezma J, Reich PB, Schuman MC, Townsend PA, Trowbridge A.   +6 more
europepmc   +2 more sources

Detection of Solar Photovoltaic Power Plants Using Satellite and Airborne Hyperspectral Imaging

Remote Sensing, 2023
Solar photovoltaic panels (PV) provide great potential to reduce greenhouse gas emissions as a renewable energy technology. The number of solar PV has increased significantly in recent years and is expected to increase even further.
Christoph Jörges, Hedwig Sophie Vidal, Tobias Hank, Heike Bach   +3 more
doaj   +1 more source

Do beaver ponds increase methane emissions along Arctic tundra streams?

Environmental Research Letters, 2023
Beaver engineering in the Arctic tundra induces hydrologic and geomorphic changes that are favorable to methane (CH _4 ) production. Beaver-mediated methane emissions are driven by inundation of existing vegetation, conversion from lotic to lentic ...
Jason A Clark, Ken D Tape, Latha Baskaran, Clayton Elder, Charles Miller, Kimberley Miner, Jonathan A O’Donnell, Benjamin M Jones   +7 more
doaj   +1 more source

Aqueous alteration mapping in Rishabdev ultramafic complex using imaging spectroscopy

International Journal of Applied Earth Observations and Geoinformation, 2020
Hyperspectral remote sensing/imaging spectroscopy has enabled precise identification and mapping of hydrothermal alteration mineral assemblages based on diagnostic absorption features of minerals.
Hrishikesh Kumar, A.S. Rajawat
doaj   +1 more source

Challenges in Methane Column Retrievals from AVIRIS-NG Imagery over Spectrally Cluttered Surfaces: A Sensitivity Analysis

Remote Sensing, 2017
A comparison between efforts to detect methane anomalies by a simple band ratio approach from the Airborne Visual Infrared Imaging Spectrometer-Classic (AVIRIS-C) data for the Kern Front oil field, Central California, and the Coal Oil Point marine ...
Minwei Zhang, Ira Leifer, Chuanmin Hu
doaj   +1 more source

Development of chlorophyll-a concentration estimation algorithm for turbid productive inland waters in India

Geocarto International, 2023
Estimation of Chlorophyll-a (Chl-a) concentration from remote-sensing reflectance derived from satellite imagery is highly effective in monitoring the spatial and temporal optical variations in water bodies.
Srinivas Kolluru, Shirishkumar S. Gedam, Shard Chander, Arvind Sahay   +3 more
doaj   +1 more source

Detection of engineered surfaces using deep learning approach in AVIRIS-NG hyperspectral data

Geocarto International, 2021
Hyperspectral remote sensing is opening new avenues for multitude of urban applications. This paper extends target detection method for extraction of engineered surfaces or urban targets, particula...
Shalini Gakhar, Kailash Chandra Tiwari
openaire   +1 more source

Spectroscopic imaging of sub-kilometer spatial structure in lower-tropospheric water vapor [PDF]

Atmospheric Measurement Techniques, 2021
The subgrid spatial variability of water vapor is an important geophysical parameter for modeling tropical convention and cloud processes in atmospheric models.
D. R. Thompson, B. H. Kahn, P. G. Brodrick, M. D. Lebsock, M. Richardson, M. Richardson, R. O. Green   +6 more
doaj   +1 more source

Potential of next-generation imaging spectrometers to detect and quantify methane point sources from space [PDF]

Atmospheric Measurement Techniques, 2019
We examine the potential for global detection of methane plumes from individual point sources with the new generation of spaceborne imaging spectrometers (EnMAP, PRISMA, EMIT, SBG, CHIME) scheduled for launch in 2019–2025.
D. H. Cusworth, D. H. Cusworth, D. J. Jacob, D. J. Varon, D. J. Varon, C. Chan Miller, X. Liu, K. Chance, A. K. Thorpe, R. M. Duren, C. E. Miller, D. R. Thompson, C. Frankenberg, C. Frankenberg, L. Guanter, C. A. Randles   +15 more
doaj   +1 more source

Methane Mapping with Future Satellite Imaging Spectrometers [PDF]

, 2019
This study evaluates a new generation of satellite imaging spectrometers to measure point source methane emissions from anthropogenic sources. We used the Airborne Visible and Infrared Imaging Spectrometer Next Generation(AVIRIS-NG) images with known ...
Ayasse, Alana K., Dennison, Philip E., Duren, Riley M., Foote, Markus, Green, Robert O., Joshi, Sarang, Roberts, Dar A., Thompson, David R., Thorpe, Andrew K.   +8 more
core   +1 more source