Results 101 to 110 of about 877 (209)

Methane and Ethane Emission Rates, Intensities, and Trends: Aircraft Mass Balance Insights Over the Denver‐Julesburg Basin, Fall 2021

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 7, 16 April 2026.
Abstract Despite a 2.1‐fold increase in oil and gas (O&G) production from 2012 to 2021 in the Wattenberg Field (WF) area of the Denver‐Julesburg Basin (DJB), total methane (CH4) emissions have remained unchanged within measurement uncertainties (26.0 ± 6.8 t/hr in 2012, 24.0 ± 5 t/hr in 2015, and 21.4 ± 5.7 t/hr in 2021), while ethane (C2H6) emissions ...
H. M. Daley, R. R. Dickerson, P. Stratton, H. He, X. Ren, A. R. Koss, W. A. Brewer, S. Baidar, B. Hmiel, D. Bon, G. Pierce, P. Weibring, D. Richter, J. Walega, M. C. Ngulat, A. Santos, A. L. Hodshire, T. L. Vaughn, D. Zimmerle, A. Fried   +19 more
wiley   +1 more source

An Improved CH₄ Profile Retrieving Method for Ground-Based Differential Absorption Lidar

Atmosphere
Range-resolved CH4 concentration measurement is important prior data for atmospheric physical and chemical models. Ground-based differential absorption lidar (DIAL) can measure the vertical distribution of CH4 concentration in the atmosphere.
Lu Fan, Yong Wan, Yongshou Dai
doaj   +1 more source

Comparison of CO₂ Vertical Profiles in the Lower Troposphere between 1.6 µm Differential Absorption Lidar and Aircraft Measurements Over Tsukuba. [PDF]

Sensors (Basel), 2018
Shibata Y, Nagasawa C, Abo M, Inoue M, Morino I, Uchino O.   +5 more
europepmc   +1 more source

Differential Absorption LIDAR for Greenhouse Gas Detection

, 2012
Our goal is to develop and characterize measurement technology for ground-based quantification of greenhouse-gas emissions from natural and anthropogenic sources and sinks. Toward this end, we are developing a differential absorption LIDAR (DIAL) system capable of remote measurements of atmospheric levels of the major greenhouse gases with 10-100 meter
Maxwell, Stephen E., Douglass, Kevin O., Plusquellic, David F., Hodges, Joseph T., van Zee, Roger D., Samarov, Daniel V., Whetstone, James R.   +6 more
openaire   +1 more source

An Evaluation of WRF‐Chem's Performance in Simulating PM2.5 in West African Cities

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 7, 16 April 2026.
Abstract West Africa experiences some of the highest particulate pollution levels globally due to Saharan dust, biomass burning and urban emissions. Despite the severe health burden, air quality monitoring remains sparse. This study evaluates WRF‐Chem's performance in simulating PM2.5 levels across seven West African cities in 2021 using newly ...
Aara’L Y. Yarber, Gregory S. Jenkins
wiley   +1 more source

Methane optical density measurements with an integrated path differential absorption lidar from an airborne platform. [PDF]

J Appl Remote Sens, 2017
Riris H, Numata K, Wu S, Gonzalez B, Rodriguez M, Scott S, Kawa S, Mao J.   +7 more
europepmc   +1 more source

Regional Transport in the Arctic: Sensitivity of NOx and Particulate Matter in Wintertime Urban Alaska to Background Air

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 7, 16 April 2026.
Abstract Fairbanks, Alaska is an example of a subarctic city that experiences severe wintertime air quality episodes characterized by high concentrations of fine particulate matter (PM2.5) and nitrogen oxides (NO and NO2 = NOx). Previous research into these air quality episodes has focused on the impact of surface‐based inversions that trap local ...
Alicia Hoffman, Steve R. Arnold, Dwayne Heard, Lisa Whalley, Natalie Brett, Kathy S. Law, Jean‐Christophe Raut, Tatsuo Onishi, Slimane Bekki, William R. Simpson, Meeta Cesler‐Maloney, Brice Barret, Roman Pohorsky, Julia Schmale, Brice Temime‐Roussel, Barbara D’Anna   +15 more
wiley   +1 more source

Evaluation of 2-μm Pulsed Integrated Path Differential Absorption Lidar for Carbon Dioxide Measurement-Technology Developments, Measurements, and Path to Space. [PDF]

IEEE J Sel Top Appl Earth Obs Remote Sens, 2018
Singh UN, Refaat TF, Petros M, Ismail S.
europepmc   +1 more source

Simulations of a High Ozone Episode and Heatwave Day Using a Coupled Multi‐Layer Urban Canopy and Chemistry Model

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 7, 16 April 2026.
Abstract Coastal cities face critical challenges in managing ozone pollution because of high population density and complex interactions between urbanization and coastal meteorology. Using New York City (NYC) as a case study, this work examines how urban surfaces influence heatwaves, sea‐breeze circulations, and boundary‐layer dynamics, and how these ...
H. Gamarro, W. M. Angevine, B. C. McDonald, R. Bornstein, P. Ramamurthy, F. Moshary, L. M. Judd, J. E. González‐Cruz   +7 more
wiley   +1 more source

Iodine Molecules Differential Absorption Cross section Lidar Studies

Measurement Science Review, 2010
Privalov V., Shemanin V., Voronina E.
doaj   +1 more source