Results 41 to 50 of about 450 (145)

TROPOMI aerosol products: evaluation and observations of synoptic-scale carbonaceous aerosol plumes during 2018–2020 [PDF]

Atmospheric Measurement Techniques, 2020
TROPOspheric Monitoring Instrument (TROPOMI) near-ultraviolet (near-UV) radiances are used as input to an inversion algorithm that simultaneously retrieves aerosol optical depth (AOD), single-scattering albedo (SSA), and the qualitative UV aerosol index (
O. Torres, H. Jethva, C. Ahn, G. Jaross, D. G. Loyola   +4 more
doaj   +1 more source

Detection of multi-layer and vertically-extended clouds using A-train sensors [PDF]

Atmospheric Measurement Techniques, 2010
The detection of multiple cloud layers using satellite observations is important for retrieval algorithms as well as climate applications. In this paper, we describe a relatively simple algorithm to detect multiple cloud layers and ...
J. Joiner, A. P. Vasilkov, P. K. Bhartia, G. Wind, S. Platnick, W. P. Menzel   +5 more
doaj   +1 more source

A physics-based approach to oversample multi-satellite, multispecies observations to a common grid [PDF]

Atmospheric Measurement Techniques, 2018
Satellite remote sensing of the Earth's atmospheric composition usually samples irregularly in space and time, and many applications require spatially and temporally averaging the satellite observations (level 2) to a regular grid (level 3).
K. Sun, L. Zhu, K. Cady-Pereira, C. Chan Miller, K. Chance, L. Clarisse, P.-F. Coheur, G. González Abad, G. Huang, X. Liu, M. Van Damme, K. Yang, M. Zondlo   +12 more
doaj   +1 more source

Calibration and Data Quality Assurance Technical Advancements for Quantitative Remote Sensing in the DRAGON 4 Project

Remote Sensing, 2021
Robust calibration and validation (Cal and Val) should guarantee the accuracy of the retrieved information, make the remote sensing data consistent and traceable, and maintain the sensor performance during the operational phase.
Lingling Ma, Yongguang Zhao, Chuanrong Li, Philippe Goryl, Cheng Liu, Jieying He, Pucai Wang, Marc Bouvet, Ran Zhao, Ning Wang, Yaokai Liu, Caixia Gao, Bart Dils, Chengxin Zhang, Ka Lok Chan, Xinhong Wang   +15 more
doaj   +1 more source

The New Potential of Deep Convective Clouds as a Calibration Target for a Geostationary UV/VIS Hyperspectral Spectrometer

Remote Sensing, 2020
As one of geostationary earth orbit constellation for environmental monitoring over the next decade, the Geostationary Environment Monitoring Spectrometer (GEMS) has been designed to observe the Asia-Pacific region to provide information on atmospheric ...
Yeeun Lee, Myoung-Hwan Ahn, Mina Kang
doaj   +1 more source

Validation of Aura-OMI QA4ECV NO2 Climate Data Records with ground-based DOAS networks: role of measurement and comparison uncertainties

, 2020
International audienceThe QA4ECV version 1.1 stratospheric and tropospheric NO2 vertical column density (VCD) climate data records (CDR) from the satellite sensor OMI are validated, using NDACC zenith scattered light DOAS (ZSL-DOAS) and Multi Axis-DOAS ...
Remmers, Julia, Piters, Ankie, Granville, José, Beirle, Steffen, Pazmino, Andrea, Richter, Andreas, Pinardi, Gaia, De Smedt, Isabelle, Rino, Bruno, Burrows, John P., Hubert, Daan, Pommereau, Jean-Pierre, Wagner, Thomas, Eskes, Henk, Niemeijer, Sander, Goutail, Florence, Lambert, Jean-Christopher, Van Roozendaël, Michel, Verhoelst, Tiji, Hendrick, François, Peters, Enno, Compernolle, Steven, Keppens, Arno, Bais, Alkis, Van Geffen, Jos, Boersma, Folkert, Lorente, Alba   +26 more
core   +1 more source

Seasonal variations in daily mortality associated with exposure to particulates, in Campo Grande, Brazil

Journal Health NPEPS, 2022
Obcjetive: to investigate short-term effects of air pollution, climate variability on respiratory morbidity and mortality from 2005 to 2020. Method: the study was carried out in the city of Campo Grande, Mato Grosso do Sul, Brazil.
Raquel Soares Casaes Nunes, José Francisco de Oliveira-Júnior, Marcel Carvalho Abreu, Flavio Aristone, Widinei Alves Fernandes, Amaury de Souza, Cícero Manoel dos Santos, Débora Martins de Souza   +7 more
doaj   +1 more source

Detection of Absorbing Aerosol Using Single Near-UV Radiance Measurements from a Cloud and Aerosol Imager

Remote Sensing, 2017
The Ultra-Violet Aerosol Index (UVAI) is a practical parameter for detecting aerosols that absorb UV radiation, especially where other aerosol retrievals fail, such as over bright surfaces (e.g., deserts and clouds).
Sujung Go, Mijin Kim, Jhoon Kim, Sang Seo Park, Ukkyo Jeong, Myungje Choi   +5 more
doaj   +1 more source

Developmental morphology of claspers and clasper‐glands during maturation in Potamotrygon wallacei (Chondrichthyes: Potamotrygoninae)

The Anatomical Record, EarlyView.
Abstract The claspers are the copulatory organs in male elasmobranchs, responsible for directing the semen into the female cloaca (C). However, the microscopic morphology of the claspers remains poorly understood. This study describes the morphology of the claspers and clasper glands (CGs) of cururu stingray (Potamotrygon wallacei) at different ...
Matheus Samuel Cunha Braga, Grazyelle Sebrenski da Silva, Maria Inês Braga de Oliveira, Jaydione Luiz Marcon, Ruben Dario Morales Gamba   +4 more
wiley   +1 more source

The American College of Rheumatology Updated Recommended Methods for Development of Disease Classification and Response Criteria

Arthritis &Rheumatology, EarlyView.
Disease classification criteria and response criteria are important tools in the conduct of observational studies and clinical trials for rheumatic diseases. This paper updates methodologic guidance for classification and response criteria funded, developed and/or endorsed by the American College of Rheumatology (ACR), incorporating contemporary ...
Sindhu R. Johnson, Tuhina Neogi, Amy S. Turner, Jaime Guzman, Zahi Touma   +4 more
wiley   +1 more source