Results 51 to 60 of about 658,079 (225)

Assessment of methane emissions from US onshore oil and gas production using MethaneAIR measurements [PDF]

Atmospheric Chemistry and Physics
Mitigation of methane emissions from the oil and gas sector is an effective way to reduce the near-term climate warming and losses of a valuable energy resource.
K. MacKay, K. MacKay, J. Benmergui, J. Benmergui, J. Benmergui, J. P. Williams, J. P. Williams, M. Omara, M. Omara, A. Himmelberger, M. Sargent, J. D. Warren, J. D. Warren, C. C. Miller, C. C. Miller, C. C. Miller, S. Roche, S. Roche, S. Roche, Z. Zhang, J. Franklin, L. Guanter, L. Guanter, S. Wofsy, R. Gautam, R. Gautam   +25 more
doaj   +1 more source

The Role of Lightning in Atmospheric Chemistry

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 16, 28 August 2026.
Abstract Lightning has important effects on atmospheric constituents in primarily the middle and upper troposphere. We summarize the effects of lightning on atmospheric chemistry that have been published since the last major review in 2007. The estimates of NOx production by lightning (LNOx) are based on five methods: theoretical/laboratory estimates ...
Kenneth E. Pickering, Dale J. Allen, Heidi Huntrieser   +2 more
wiley   +1 more source

Surveying methane point-source super-emissions across oil and gas basins with MethaneSAT [PDF]

Atmospheric Chemistry and Physics
Methane emissions from the oil and gas (O&G) industry play a major role in the global methane budget. The MethaneSAT space-based mission, which operated between March 2024 and June 2025, was designed to provide high-quality data on O&G methane ...
L. Guanter, L. Guanter, J. Roger, J. Warren, M. Sargent, Z. Zhang, S. Roche, S. Roche, C. C. Miller, C. C. Miller, M. Steiner, H. Hadfield, M. Omara, J. Williams, K. MacKay, J. E. Franklin, B. Luo, S. C. Wofsy, S. P. Hamburg, R. Gautam   +19 more
doaj   +1 more source

A Roadmap for Identifying and Interpreting Physical Processes and National Water Model Prediction Bias Associated With Baseflow Index Regimes Across the Contiguous United States

Water Resources Research, Volume 62, Issue 8, August 2026.
Abstract Understanding how groundwater–surface water interactions shape streamflow variability is critical for diagnosing low flow behavior and prediction bias in continental scale hydrologic models. We present a process informed framework that links observed baseflow (BF) dynamics, watershed attributes, and National Water Model (NWM) performance ...
Ryan van der Heijden, Ali Dadkhah, Scott Hamshaw, Mandar Dewoolkar, Ehsan Ghazanfari, Norm Jones, Gustavious Williams, Prabhakar Clement, Donna M. Rizzo   +8 more
wiley   +1 more source

Coal ash resources and potential for rare earth element production in the United States

International Journal of Coal Science & Technology
The renewable energy industry is heavily reliant on rare earth elements, underscoring the need to develop resources and production. The objective of this work was to estimate coal ash resources and potential for extraction of rare earth elements using ...
Robert C. Reedy, Bridget R. Scanlon, Davin A. Bagdonas, James C. Hower, Dennis James, J. Richard Kyle, Kristine Uhlman   +6 more
doaj   +1 more source

Paleohydrology and Machine-Assisted Estimation of Paleogeomorphology of Fluvial Channels of the Lower Middle Pennsylvanian Allegheny Formation, Birch River, WV

Frontiers in Earth Science, 2020
Rivers transport sediments in a source to sink system while responding to allogenic controls of the depositional system. Stacked fluvial sandstones of the Middle Pennsylvanian (Desmoinesian Stage, ∼310–306 Ma) Allegheny Formation (MPAF) exposed at Birch ...
Oluwasegun Abatan, Amy Weislogel
doaj   +1 more source

Thermal and Structural Reconstruction of an Eroded Foreland Basin: Central Appalachian Basin, USA

Basin Research, Volume 38, Issue 4, July–August 2026.
New low‐temperature thermochronology and modelling reveal a complex thermal history for the central Appalachian Basin. Results indicate Carboniferous exhumation of the fold‐thrust belt and Mesozoic heating in the foredeep linked to the Rome Trough. Deeply buried Devonian source rocks were consequently pushed past the peak oil and gas windows.
Kristopher L. Symanski, Magdalena Ellis Curry, Brandon Lutz, Paul O'Sullivan   +3 more
wiley   +1 more source

The Role of Regional and Local Structure in a Late Ordovician (Edenian) Foreland Platform-to-Basin Succession Inboard of the Taconic Orogen, Central Canada

Geosciences, 2013
The Upper Ordovician (Edenian) Lindsay Formation of the Ottawa Embayment represents the final stage of carbonate platform development in the Taconic foreland periphery inboard of the northern Appalachian orogen.
George R. Dix, Ruth Gbadeyan
doaj   +1 more source

Evaluating Bedrock Depth Proxies as Representations of Subsurface Controls on Runoff Generation

Hydrological Processes, Volume 40, Issue 7, July 2026.
This study evaluated six bedrock depth proxy variables for predicting hydrologic signatures linked to runoff generation. Results show that subsurface controls are difficult to detect using current large‐sample representations, primarily due to limitations in how subsurface structure is represented and aggregated.
Lindsey Finks, John P. Gannon
wiley   +1 more source

Requisition: Appalachian National Park Association

, 2015
This is a blank copy of a requisition form for ordering on behalf of the Appalachian National Park Association.Requisition No. On REQUISITION. No — Appalachian National Park Association* \ AH orders for printing or other supplies must be accompanied by

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