Results 71 to 80 of about 3,737,310 (206)

Citizen Sailors Provide a Detailed Map of Open‐Ocean Surface Biodiversity and Help Link eDNA Data to Satellite Observations

Molecular Ecology, Volume 35, Issue 19, October 2026.
ABSTRACT Characterizing open ocean biodiversity at basin scales remains challenging due to sparse sampling and limited opportunities to validate satellite‐derived estimates of plankton community composition. Through the Citizens of the Sea initiative, we deployed standardized environmental DNA (eDNA) sampling kits on 27 sailing vessels during the 2024 ...
Pablo Saenz‐Agudelo, Olivier Laroche, Ben Knight, Erin Bomati, Xavier Pochon   +4 more
wiley   +1 more source

The VIIRS Nighttime Lights average annual global dataset: exploratory and brisk trend analysis on three different domains

, 2022
Existing annual global nighttime lights time series (2012-2020) based on data collected by the NASA/NOAA Visible Infrared Imaging Radiometer Suite (VIIRS) was used to identify temporal and spatial trends: input VIIRS data were used to create a ...
Allegra Eusebio, Andrea Ajmar, Ajmar, Andrea, Arco, Emere, Eusebio, Allegra, Emere Arco   +5 more
core   +1 more source

Subnational Border Reforms and Economic Activity in Africa

Oxford Bulletin of Economics and Statistics, Volume 88, Issue 5, Page 1203-1218, October 2026.
ABSTRACT Using GIS methods, we identify territories in Africa affected by subnational border reforms between 1992 and 2013. Descriptive statistics reveal that these territories differed from other African regions across several key dimensions. For example, these territories were more populous and exhibited greater ethnic diversity.
Thushyanthan Baskaran, Sebastian Blesse
wiley   +1 more source

Regional Sediment Management Experiment Using the Visible/Infrared Imager/Radiometer Suite and the Landsat Data Continuity Mission Sensor [PDF]

, 2007
The central aim of this RPC (Rapid Prototyping Capability) experiment is to demonstrate the use of VIIRS (Visible/Infrared Imager/ Radiometer Suite and LDCM (Landsat Data Continuity Mission) sensors as key input to the RSM (Regional Sediment Management ...
Spruce, Joseph P., Estep, Leland
core  

Simulating Regional‐Scale Aerosol Radiative Effects of Wildfire Smoke Using a High‐Resolution Coupled Meteorology‐Chemistry Model: HRRR‐Chem

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 18, 28 September 2026.
Abstract Wildfires are increasing in frequency and intensity, strongly influencing both regional air quality and the Earth's radiation budget via their aerosol emissions. Relying on an unparalleled observational data set from the 2019 NOAA/NASA FIREX‐AQ campaign, this study quantifies the direct radiative effects of two wildfires using the HRRR‐Chem ...
Minsu Choi, Ravan Ahmadov, J. L. Schnell, Johana Romero‐Alvarez, Sudheer Bhimireddy, Haiqin Li, Joshua P. Schwarz, Pedro Campunzano Jost, Hongyu Guo, Jose L. Jimenez, Pawan Gupta, Thomas F. Eck, Philippe Goloub, Olga Kalashnikova, Chuanyu Xu, Fangjun Li, R. Bradley Pierce, Georg A. Grell   +17 more
wiley   +1 more source

Wildfire Smoke Along Colorado's Front Range in 2020: An Evaluation of PM2.5 Monitor Spacing and Smoke Forecasts

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 18, 28 September 2026.
Abstract The 2020 wildfires caused widespread elevated fine particulate matter (PM2.5) concentrations across the western U.S. The Colorado Front Range experienced multiple smoke episodes from nearby fires and fires hundreds of kilometers away. Multiple days (88 total) with elevated PM2.5 along the Front Range occurred in 2020 between July and October ...
Brandon A. McGuire, Jeffrey R. Pierce, Bonne Ford, Sheryl Magzamen, Ravan Ahmadov, Eric James, Ashley Anderson, Katie Abrams, Emily V. Fischer   +8 more
wiley   +1 more source

Land Surface Temperature product validation using NOAA's surface climate observation networks—Scaling methodology for the Visible Infrared Imager Radiometer Suite (VIIRS)

Remote Sensing of Environment, 2012
Abstract NOAA will soon use the new Visible Infrared Imager Radiometer Suite (VIIRS) on the Joint Polar Satellite System (JPSS) as its primary polar-orbiting satellite imager. Employing a near real-time processing system, NOAA will generate a series of Environmental Data Records (EDRs) from VIIRS data. For example, the VIIRS Land Surface Temperature (
Guillevic, Pierre C., Privette, Jeffrey L., Coudert, Benoît, Palecki, Michael A., Demarty, Jerome, Ottle, Catherine, Augustine, John A.   +6 more
openaire   +4 more sources

VIIRS ZEMAX and FORTRAN polarization models

, 2007
The Visible/Infrared Imager/Radiometer Suite (VIIRS) collects visible/infrared imagery and radiometric data. The radiometric requirements are such that the instrument's polarization sensitivity must be very well understood.
Liao, Lushalan, Voss, Kenneth, Meister, Gerhard, Eugene Waluschka, Kenneth Voss, Moyer, David, Waluschka, Eugene, Lushalan Liao, David Moyer, Gerhard Meister   +9 more
core   +1 more source

Improved NOAA-20 Visible Infrared Imaging Radiometer Suite Day/Night Band Image Quality by Upgraded Gain Calibration

, 2021
Due to complex radiometric calibration, the imagery collected by the Day/Night Band (DNB) of the Visible Infrared Imaging Radiometer Suite (VIIRS) onboard the Suomi National Polar Partnership (Suomi-NPP) and the NOAA-20 follow-on satellite is subject to ...
Wenhui Wang, Changyong Cao, Slawomir Blonski, Taeyoung Choi, Xi Shao, Sirish Uprety, Yalong Gu, Bin Zhang   +7 more
core   +1 more source

MAIAC Aerosol Algorithm Over Water

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 18, 28 September 2026.
Abstract MAIAC VIIRS Collection 2 aerosol product for the first time provides global coverage over land and ocean. This paper gives a first systematic description of MAIAC ocean aerosol algorithm covering cases of open ocean, waters with sediments and brown waters from rivers' discharge.
Alexei Lyapustin, Yujie Wang, Myungje Choi, Andrew M. Sayer, Sergey Korkin   +4 more
wiley   +1 more source