Alexander Ignatov
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View article: Satellite Oceanography in NOAA: Research, Development, Applications, and Services Enabling Societal Benefits from Operational and Experimental Missions
Satellite Oceanography in NOAA: Research, Development, Applications, and Services Enabling Societal Benefits from Operational and Experimental Missions Open
The National Oceanic and Atmospheric Administration’s (NOAA) Center for Satellite Applications and Research (STAR) facilitates and enables societal benefits from satellite oceanography, supporting operational and experimental satellite mis…
View article: NOAA MODIS SST Reanalysis Version 1
NOAA MODIS SST Reanalysis Version 1 Open
The first NOAA full-mission reanalysis (RAN1) of the sea surface temperature (SST) from the two Moderate Resolution Imaging Spectroradiometers (MODIS) onboard Terra (24 February 2000–present) and Aqua (4 July 2002–present) was performed. T…
View article: Towards Improved Quality Control of In Situ Sea Surface Temperatures from Drifting and Moored Buoys in the NOAA iQuam System
Towards Improved Quality Control of In Situ Sea Surface Temperatures from Drifting and Moored Buoys in the NOAA iQuam System Open
The NOAA in situ Sea Surface Temperature (SST) Quality Monitor (iQuam) online system collects in situ SSTs from various sources, performs quality control (QC), and provides QC’ed data to users. Like many other in situ QCs, the iQuam QC emp…
View article: Non-equilibrium processes in the atmosphere, water, and reactions with calcium carbonate in the environment
Non-equilibrium processes in the atmosphere, water, and reactions with calcium carbonate in the environment Open
Non-equilibrium processes in the atmosphere and water were described in this paper.Spectral analysis by NES and DNES methods was applied to research water structure.The energy spectrum of water is obtained due to the non-equilibrium proces…
View article: JPSS VIIRS SST Reanalysis Version 3
JPSS VIIRS SST Reanalysis Version 3 Open
The 3rd full-mission reanalysis (RAN3) of global sea surface temperature (SST) with a 750 m resolution at nadir is available from VIIRS instruments flown onboard two JPSS satellites: NPP (February 2012–present) and N20 (January 2018–presen…
View article: AVHRR GAC Sea Surface Temperature Reanalysis Version 2
AVHRR GAC Sea Surface Temperature Reanalysis Version 2 Open
The 40+ years-long sea surface temperature (SST) dataset from 4 km Global Area Coverage (GAC) data of the Advanced Very High-Resolution Radiometers (AVHRR/2s and/3s) flown onboard ten NOAA satellites (N07/09/11/12/14/15/16/17/18/19) has be…
View article: A Physical Basis for the Overstatement of Low Clouds at Night by Conventional Satellite Infrared‐Based Imaging Radiometer Bi‐Spectral Techniques
A Physical Basis for the Overstatement of Low Clouds at Night by Conventional Satellite Infrared‐Based Imaging Radiometer Bi‐Spectral Techniques Open
Marine boundary layer (MBL) clouds, ubiquitous to the world’s oceans, help govern the radiative balance of Earth’s climate system. Satellite remote sensing provides the most practical means to monitor cloud worldwide. Whereas visible‐based…
View article: Metop First Generation AVHRR FRAC SST Reanalysis Version 1
Metop First Generation AVHRR FRAC SST Reanalysis Version 1 Open
The first full-mission global AVHRR FRAC sea surface temperature (SST) dataset with a nominal 1.1 km resolution at nadir was produced from three Metop First Generation (FG) satellites: Metop-A (2006-on), -B (2012-on) and -C (2018-on), usin…
View article: A Completeness and Complementarity Analysis of the Data Sources in the NOAA In Situ Sea Surface Temperature Quality Monitor (iQuam) System
A Completeness and Complementarity Analysis of the Data Sources in the NOAA In Situ Sea Surface Temperature Quality Monitor (iQuam) System Open
In situ sea surface temperatures (SST) are the key component of the calibration and validation (Cal/Val) of satellite SST retrievals and data assimilation (DA). The NOAA in situ SST Quality Monitor (iQuam) aims to collect, from various sou…
View article: The Advanced Very High Resolution Radiometer: Contributing to Earth Observations for over 40 Years
The Advanced Very High Resolution Radiometer: Contributing to Earth Observations for over 40 Years Open
The Advanced Very High Resolution Radiometers (AVHRR), which have been flying on National Oceanic and Atmospheric Administration’s (NOAA) polar-orbiting weather satellites since 1978, provide the longest global record of Earth observations…
View article: Nighttime Cool Skin Effect Observed from Infrared SST Autonomous Radiometer (ISAR) and Depth Temperatures
Nighttime Cool Skin Effect Observed from Infrared SST Autonomous Radiometer (ISAR) and Depth Temperatures Open
The nighttime ocean cool skin signal Δ T [defined as skin sea surface temperature (SST skin ) minus depth SST (SST depth )] is investigated using 103 days of matchups between shipborne Infrared SST Autonomous Radiometer (ISAR) SST skin and…
View article: Global in situ Observations of Essential Climate and Ocean Variables at the Air–Sea Interface
Global in situ Observations of Essential Climate and Ocean Variables at the Air–Sea Interface Open
© The Author(s), 2019. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Centurioni, L. R., Turton, J., Lumpkin, R., Braasch, L., Brassington, G., Chao, Y., Cha…
View article: Observational Needs of Sea Surface Temperature
Observational Needs of Sea Surface Temperature Open
Sea surface temperature (SST) is a fundamental physical variable for understanding, quantifying and predicting complex interactions between the ocean and the atmosphere. Such processes determine how heat from the sun is redistributed acros…
View article: In situ SST Quality Monitor ( iQuam) / SST Quality Monitor (SQUAM)
In situ SST Quality Monitor ( iQuam) / SST Quality Monitor (SQUAM) Open
Presentation given at the 20th GHRSST science meeting (XX), ESA/ESRIN, Frascati, Italy, June 3 - 7, 2019.
View article: Towards high-resolution multi-sensor gridded ACSPO SST product: reducing residual cloud contamination
Towards high-resolution multi-sensor gridded ACSPO SST product: reducing residual cloud contamination Open
Sea Surface Temperature (SST) products at NOAA are produced from multiple polar-orbiting and geostationary sensors using the Advanced Clear-Sky Processor for Ocean (ACSPO) enterprise system. Data of several high-resolution (~1 km) sensors …
View article: Optimization of Sensitivity of GOES-16 ABI Sea Surface Temperature by Matching Satellite Observations with L4 Analysis
Optimization of Sensitivity of GOES-16 ABI Sea Surface Temperature by Matching Satellite Observations with L4 Analysis Open
Monitoring of the diurnal warming cycle in sea surface temperature (SST) is one of the key tasks of the new generation geostationary sensors, the Geostationary Operational Environmental Satellite (GOES)-16/17 Advanced Baseline Imager (ABI)…
View article: Why Gliders Appreciate Good Company: Glider Assimilation in the Oregon‐Washington Coastal Ocean 4DVAR System With and Without Surface Observations
Why Gliders Appreciate Good Company: Glider Assimilation in the Oregon‐Washington Coastal Ocean 4DVAR System With and Without Surface Observations Open
Gliders are low‐power autonomous underwater vehicles used to obtain oceanic measurements in vertical sections. Assimilation of glider temperature and salinity into coastal ocean circulation models holds the potential to improve the ocean s…
View article: Monitoring of VIIRS ocean clear-sky brightness temperatures against CRTM simulation in ICVS for TEB/M bands
Monitoring of VIIRS ocean clear-sky brightness temperatures against CRTM simulation in ICVS for TEB/M bands Open
Monitoring of VIIRS ocean clear-sky brightness temperatures against CRTM Simulations has been initially implemented in the NOAA Integrated Calibration/Validation System (ICVS) for VIIRS calibration and validation. The initial system builds…
View article: Sensor Stability for SST (3S): Toward Improved Long-Term Characterization of AVHRR Thermal Bands
Sensor Stability for SST (3S): Toward Improved Long-Term Characterization of AVHRR Thermal Bands Open
Recently, the National Oceanic and Atmospheric Administration (NOAA) performed sea surface temperature (SST) reanalysis (RAN1) from seven AVHRR/3s onboard NOAA-15 to -19 and Metop-A and -B, from 2002–present. Operational L1b data were used…
View article: AVHRR GAC SST Reanalysis Version 1 (RAN1)
AVHRR GAC SST Reanalysis Version 1 (RAN1) Open
In response to its users’ needs, the National Oceanic and Atmospheric Administration (NOAA) initiated reanalysis (RAN) of the Advanced Very High Resolution Radiometer (AVHRR) Global Area Coverage (GAC; 4 km) sea surface temperature (SST) d…
View article: Preliminary Inter-Comparison between AHI, VIIRS and MODIS Clear-Sky Ocean Radiances for Accurate SST Retrievals
Preliminary Inter-Comparison between AHI, VIIRS and MODIS Clear-Sky Ocean Radiances for Accurate SST Retrievals Open
Clear-sky brightness temperatures (BT) in five bands of the Advanced Himawari Imager (AHI; flown onboard Himawari-8 satellite) centered at 3.9, 8.6, 10.4, 11.2, and 12.3 µm (denoted by IR37, IR86, IR10, IR11, and IR12, respectively) are us…
View article: Improved VIIRS and MODIS SST Imagery
Improved VIIRS and MODIS SST Imagery Open
Moderate Resolution Imaging Spectroradiometers (MODIS) and Visible Infrared Imaging Radiometer Suite (VIIRS) radiometers, flown onboard Terra/Aqua and Suomi National Polar-orbiting Partnership (S-NPP)/Joint Polar Satellite System (JPSS) sa…