Results 71 to 80 of about 1,912 (186)

Lidar‐Based Observations of Pollen Above a Mixed Hardwood Forest in the United States

Journal of Geophysical Research: Atmospheres, Volume 130, Issue 24, 28 December 2025.
Abstract We present lidar (LIght Detection And Ranging) and particle measurements from a mixed hardwood forest in northern Michigan over a 74‐day period in April–July 2016, capturing the peak spring tree pollen emissions season. Mini Micropulse Lidar (MPL) observations of the normalized ratio backscatter and depolarization ratios show pollen plumes ...
Allison L. Steiner, Matthew C. Wozniak, Yingxiao Zhang, Andrew P. Ault, Eric A. Kort, Phil DeCola, Traci L. Lersch, Gary S. Casuccio, Kayleigh S. Reilly   +8 more
wiley   +1 more source

Dust Direct Radiative Effect Including Large Particles and Component Minerals

Geophysical Research Letters, Volume 52, Issue 22, 28 November 2025.
Abstract The direct radiative effect (DRE) of dust aerosols in Earth system models (ESMs) remains highly uncertain, largely due to inadequate representations of particle size distribution (PSD) and mineral composition. Using NASA's Earth Surface Mineral Dust Source Investigation (EMIT) soil mineralogy data and observed PSD in an ESM that resolves dust ...
Longlei Li, Natalie M. Mahowald, Vincenzo Obiso, Jasper F. Kok, Ron L. Miller, Xiaohong Liu, María Gonçalves Ageitos, Carlos Pérez García‐Pando, Danny M. Leung, Ziming Ke, Philip G. Brodrick, Roger N. Clark, Paola Formenti, Claudia Di Biagio, Paul Ginoux, Gregory S. Okin, Bo Zhou, David R. Thompson, Robert O. Green   +18 more
wiley   +1 more source

Satellite Imagery Reveals Near‐Horizon Urban Light Emissions Impacting Ambient Environment

Journal of Geophysical Research: Atmospheres, Volume 130, Issue 22, 28 November 2025.
Abstract A novel method has been developed to characterize ground‐based light sources from nighttime satellite imagery. The fraction of light directed toward low elevation angles is determined relative to the total emission into the upper hemisphere. This approach aims to identify locations that exhibit an increased amount of light emission at angles ...
Miroslav Kocifaj, Ladislav Kómar
wiley   +1 more source

Augmenting Satellite Remote Sensing with AERONET-OC for Plume Monitoring in the Chesapeake Bay

Remote Sensing
Satellite observations provide broad spatial coverage of complex coastal environments but may lack temporal resolution to capture rapid changes in these dynamic systems.
Samantha Lynn Smith, Stephanie Schollaert Uz, J. Blake Clark, Dirk Aurin   +3 more
doaj   +1 more source

A Short Note on the Potential of Utilization of Spectral AERONET-Derived Depolarization Ratios for Aerosol Classification

Atmosphere, 2019
We herein present the spectral linear particle depolarization ratios (δp) from an Aerosol Robotics NETwork (AERONET) sun/sky radiometer with respect to the aerosol type. AERONET observation sites, which are representative of each aerosol type, were
Il-Sung Zo, Sung-Kyun Shin
doaj   +1 more source

Consistency of Aerosol Optical Properties between MODIS Satellite Retrievals and AERONET over a 14-Year Period in Central–East Europe

Remote Sensing
Aerosols influence Earth’s climate by interacting with radiation and clouds. Remote sensing techniques aim to enhance our understanding of aerosol forcing using ground-based and satellite retrievals. Despite technological advancements, challenges persist
Lucia-Timea Deaconu, Alexandru Mereuță, Andrei Radovici, Horațiu Ioan Ștefănie, Camelia Botezan, Nicolae Ajtai   +5 more
doaj   +1 more source

Comparison of Columnar, Surface, and UAS Profiles of Absorbing Aerosol Optical Depth and Single-Scattering Albedo in South-East Poland

Atmosphere, 2019
The impact of absorbing aerosols on climate is complex, with their potential positive or negative forcing, depending on many factors, including their height distribution and reflective properties of the underlying background.
Michał T. Chiliński, Krzysztof M. Markowicz, Olga Zawadzka, Iwona S. Stachlewska, Justyna Lisok, Przemysław Makuch   +5 more
doaj   +1 more source

Trends in MODIS and AERONET derived aerosol optical thickness over Northern Europe

Tellus: Series B, Chemical and Physical Meteorology, 2019
Long-term Aqua and Terra MODIS (MODerate resolution Imaging Spectroradiometer) Collections 5.1 and 6.1 (c051 and c061, respectively) aerosol data have been combined with AERONET (AERosol RObotic NETwork) ground-based sun photometer observations to ...
Paul Glantz, Eyal Freud, Christer Johansson, Kevin J. Noone, Matthias Tesche   +4 more
doaj   +1 more source

Повышение точности и достоверности мониторинговых измерений яркости неба на малых угловых расстояниях от Солнца системой фотометров SIMEL

Известия Алтайского государственного университета, 2019
Рассмотрены сравнительные характеристики различных модификаций фотометров CIMEL, касающиеся погрешностей измерений яркости и точности позиционирования.
Ю.Я. Матющенко, В.В. Пашнев   +1 more
doaj   +1 more source

Long-term trends in aerosol properties derived from AERONET measurements

Atmospheric Chemistry and Physics
Abstract. Over the past 2 decades, remarkable changes in aerosol concentrations and compositions have been observed worldwide, especially over developing countries, potentially resulting in considerable changes in aerosol properties. The Aerosol Robotic Network (AERONET) offers high-precision measurements of aerosol optical parameters over about 1700 ...
Z. Zhang, J. Li, H. Che, Y. Dong, O. Dubovik, T. Eck, T. Eck, P. Gupta, B. Holben, J. Kim, E. Lind, T. Saud, S. N. Tripathi, T. Ying   +13 more
openaire   +5 more sources