A5038200070- Oceanographic and Atmospheric Processes
- Arctic and Antarctic ice dynamics
- Climate variability and models
- Marine and coastal ecosystems
- Ocean Waves and Remote Sensing
- Meteorological Phenomena and Simulations
- Underwater Acoustics Research
- Geophysics and Gravity Measurements
- Methane Hydrates and Related Phenomena
- Marine and fisheries research
- Soil Moisture and Remote Sensing
- Tropical and Extratropical Cyclones Research
- Cryospheric studies and observations
- Atmospheric and Environmental Gas Dynamics
- Ocean Acidification Effects and Responses
- Advanced Computational Techniques and Applications
- Geology and Paleoclimatology Research
- Environmental Monitoring and Data Management
- Fluid dynamics and aerodynamics studies
- Fluid Dynamics and Turbulent Flows
- Calibration and Measurement Techniques
- Coastal and Marine Management
- Marine animal studies overview
- Underwater Vehicles and Communication Systems
- Atmospheric Ozone and Climate
Jet Propulsion Laboratory
2014-2024
National Research Council
2021
Istituto di Scienze Marine del Consiglio Nazionale delle Ricerche
2021
Earth and Space Research
2020
Farallon Institute
2020
Dauphin Island Sea Lab
2018
University of South Alabama
2018
National Aeronautics and Space Administration
2007-2017
California Institute of Technology
1996-2013
Universitat de les Illes Balears
1998
A new generation of integrated sea surface temperature (SST) data products are being provided by the Global Ocean Data Assimilation Experiment (GODAE) High-Resolution SST Pilot Project (GHRSST-PP). These combine in near-real time various from several different satellite sensors and situ observations maintain fine spatial temporal resolution needed inputs to operational models. The practical realization such an approach is complicated characteristic differences that exist between measurements...
Sea-surface temperature (SST) was one of the first ocean variables to be studied from earth observation satellites. Pioneering images infrared scanning radiometers revealed complexity surface fields, but these were derived radiance measurements at orbital heights and included effects intervening atmosphere. Corrections for atmosphere make quantitative estimates SST became possible when with multiple channels deployed in 1979. At same time, imaging microwave capabilities also flown. Since...
Sea surface temperature (SST) is a fundamental physical variable for understanding, quantifying and predicting complex interactions between the ocean atmosphere. Such processes determine how heat from sun redistributed across global oceans, directly impacting large- small-scale weather climate patterns. The provision of daily maps SST operational systems, modelling broader scientific community now mature sustained service coordinated by Group High Resolution Surface Temperature (GHRSST) CEOS...
Abstract A joint effort between the Copernicus Climate Change Service (C3S) and Group for High Resolution Sea Surface Temperature (GHRSST) has been dedicated to an intercomparison study of eight global gap-free sea surface temperature (SST) products assess their accurate representation SST relevant climate analysis. In general, all show consistent spatial patterns temporal variability during overlapping time period (2003–18). The main differences each product are located in western boundary...
Sea surface temperature (SST) measurements are required by operational ocean and atmospheric forecasting systems to constrain modeled upper circulation thermal structure. The Global Ocean Data Assimilation Experiment (GODAE) High Resolution SST Pilot Project (GHRSST-PP) was initiated address these needs coordinating the provision of accurate, high-resolution, products for global domain. pilot project is now complete, but activities continue within Group (GHRSST). focused on harmonizing...
Abstract From 11 April to June 2018 a new type of ocean observing platform, the Saildrone surface vehicle, collected data on round-trip, 60-day cruise from San Francisco Bay, down U.S. and Mexican coast Guadalupe Island. The track was selected optimize science team’s validation objectives. objectives include establishing accuracy these measurements. scientific satellite-derived fluxes, sea temperatures, wind vectors studies upwelling dynamics, river plumes, air–sea interactions including...
Abstract Sea surface salinity (SSS) measurements from the Aquarius/Satélite de Aplicaciones Científicas (SAC)‐D satellite and Soil Moisture Ocean Salinity (SMOS) mission were used to document freshening associated with record 2011 Mississippi River flooding event in Gulf of Mexico (GoM). Assessment response was aided by additional observations, including chlorophyll‐a (chl‐a) ocean currents, a passive tracer simulation. Low SSS values spreading river plume observed 1–3 months after peak...
Marine and atmospheric parameters, including temperature observations from surface to 80 m (at 6 depths) are measured since September 1973 on a higher-than-weekly frequency, at coastal station 4 km offshore L'Estartit (Costa Brava; NW Mediterranean). This constitutes the longest available uninterrupted oceanographic time series in Mediterranean Sea. The present contribution focuses observed climatic trends (°C/year) of air (AT; 0.05), sea (SST; 0.03), depth (S80T; 0.02) level (SL; 3.1...
Traditional ways of validating satellite-derived sea surface temperature (SST) and salinity (SSS) products by comparing with buoy measurements, do not allow for evaluating the impact mesoscale-to-submesoscale variability. We present validation remotely sensed SST SSS data against unmanned vehicle (USV)—called Saildrone—measurements from 60 day 2018 Baja California campaign. More specifically, biases root mean square differences (RMSDs) were calculated between USV-derived values, six (MUR,...
Retrievals of skin Sea-Surface Temperature (SSTskin) from the measurements Visible Infrared Imaging Radiometer Suite on Suomi-National Polar-orbiting Partnership satellite are presented and discussed. The algorithms used to derive SSTskin radiometric given in detail. A number approaches assess accuracy stability (VIIRS) retrievals reported, factors including latitude season, physical processes atmosphere at surface We conclude that Suomi National (S-NPP) VIIRS is capable matching improving...
The Arctic Ocean is one of the most important and challenging regions to observe—it experiences largest changes from climate warming, at same time difficult sample because sea ice extreme cold temperatures. Two NASA-sponsored deployments Saildrone vehicle provided a unique opportunity for validating sea-surface salinity (SSS) derived three separate products that use data Soil Moisture Active Passive (SMAP) satellite. To examine possible issues in resolving mesoscale-to-submesoscale...
Coastal upwelling regions are one of the most dynamic areas world’s oceans. The California and Baja Coasts impacted by both coastal Current, leading to frontal activity that is captured gradients in Sea Surface Temperature (SST) Salinity (SSS). Satellite data a great source spatial study fronts. However, biases near coarse resolutions can impair its usefulness areas. In this work SST from NASA Multi-Scale Ultra-High Resolution (MUR) two SSS products derived Soil Moisture Active Passive...
Sea surface temperature (SST) serves as a crucial ancillary input field to the retrieval algorithm for sea salinity (SSS) from L-band satellite radiometers, such Soil Moisture and Ocean Salinity mission, Aquarius, Active Passive mission. It is needed inverting radiative transfer model equation of ocean emissivity, which depends both on temperature. Our analysis studies sensitivity performance Aquarius SST that used in algorithm. We have retrieved salinities using four different fields input,...
Comparisons are performed between spatially averaged sea surface temperatures (ASST2) as derived from the second Along-Track Scanning Radiometer (ATSR-2) on board European Remote Sensing Satellite (ERS-2) and NOAA-NASA Advanced Very High Resolution (AVHRR) Oceans Pathfinder dataset (MPFSST). Difference maps, MPFSST 2 ASST2, along with application of a simple statistical regression model to aerosol cloud data Total Ozone Mapping Spectrometer ( TOMS), used examine impact possible...
There is high demand for complete satellite SST maps (or L4 analyses) of the Arctic regions to monitor rapid environmental changes occurring at latitudes. Although there are a plethora products choose from, satellite-based evolve constantly with advent new satellites and frequent in algorithms, intent improving absolute accuracies. The constant change these products, as reflected by version product, make it necessary do periodic validations against situ data. Eight compared here saildrone...
Sea Surface Temperature (SST) is at the core of many processes in oceans. Various remote sensing platforms have been used to obtain SST products different scales, but their validation remains a topic ongoing research. One promising platform an uncrewed surface vehicle called Saildrone. We use data from eight Saildrone deployments USA West Coast 2019 campaign validate MODIS level-2 and Multi-scale Ultra-high Resolution (MUR) level-4 satellite 1 km spatial resolution assess robustness quality...
The upwelling system off Peru/Chile is characterized by significant mesoscale to submesoscale surface variability that results from the instability of coastal currents (due strong vertical and horizontal shears) marked density cross-shore gradients (associated with mean upwelling). Here we investigate what extent intensity can be inferred sea temperature (SST) derived remote sensing. As a first step in validation, comparison between SST observations performed, which indicates 1 km gridded...
Regional sea surface temperature (SST) gradients were examined for a 6-year (2003–2008) period using data from the NASA Moderate Resolution Imaging Spectroradiometer (MODIS) on Aqua and Advanced Very High Radiometer (AVHRR) two NOAA satellite platforms. Two regions, one in California Current System other Gulf Stream, representing an eastern boundary upwelling region strong western current, respectively, chosen to investigate seasonal variability, statistical differences similarities,...
The recent emergence of satellite-based sea surface salinity (SSS) measurements provides new opportunities for oceanographic research on freshwater influence in coastal environments. Several products currently exist from multiple observing platforms and processing centers, making product selection different uses challenging. Here we evaluate four popular SSS datasets the Gulf Mexico (GoM) to characterize error each versus in-situ observations: Two NASA’s Soil Moisture Active Passive (SMAP)...
Traditional ways of validating satellite-derived sea surface temperature (SST) and salinity (SSS) products, using comparisons with buoy measurements, do not allow for evaluating the impact mesoscale to submesoscale variability. Here we present validation remotely-sensed SST SSS data against unmanned vehicle (USV) – Saildrone measurements from Spring 2018 Baja deployment. More specifically, biases root mean square differences (RMSD) were calculated between USV-derived values, six (MUR, OSTIA,...