Ocean Surface Current Analyses Real-time (OSCAR) Surface Currents - Near Real Time 0.25 Degree (Version 2.0)

(OSCAR_L4_OC_NRT_V2.0)

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Version	2.0
Processing Level	4
Start/Stop Date	2021-Jan-01 to Present
Short Name	OSCAR_L4_OC_NRT_V2.0
Description	Ocean Surface Current Analyses Real-time (OSCAR) is a global surface current database and NASA funded research project. OSCAR ocean mixed layer velocities are calculated from satellite-sensed sea surface height gradients, ocean vector winds, and sea surface temperature gradients using a simplified physical model for geostrophy, Ekman, and thermal wind dynamics. Daily averaged surface currents are provided on a global 0.25 x 0.25 degree grid as an average over an assumed well-mixed top 30 m of the ocean from 1993 to present day. OSCAR currents are provided at three quality levels: final, interim and nrt with a respective latency of each of approximately 1 year, 1 month, and 2 days. OSCAR is generated by Earth & Space Research (ESR) https://www.esr.org/research/oscar/. More details on the source datasets, file structure, and methodology can be found in oscarv2guide.pdf.
DOI	10.5067/OSCAR-25N20
Measurement	OCEANS > OCEAN CIRCULATION > OCEAN CURRENTS
Platform/Sensor	NOAA-14 Platform Name: National Oceanic & Atmospheric Administration-14 (NOAA-14) Orbit Period: 102.0 minutes Inclination Angle: 99.0 degrees / AVHRR-2 SENSOR Name: Advanced Very High Resolution Radiometer-2 (AVHRR-2) Swath Width: 2400.0 kilometers Description: Spacecraft angular distance from orbital plane relative to the Equator. JASON-1 Platform Name: JASON-1 (JASON-1) Orbit Period: 112.43 minutes Inclination Angle: 66.04 degrees / JASON-1 Microwave Radiometer SENSOR Name: JASON-1 MICROWAVE RADIOMETER (JASON-1 Microwave Radiometer) Swath Width: 22.9 kilometers Description: Spacecraft angular distance from orbital plane relative to the Equator. JASON-1 Platform Name: JASON-1 (JASON-1) Orbit Period: 112.43 minutes Inclination Angle: 66.04 degrees / POSEIDON-2 SENSOR Name: JASON-1 RADAR ALTIMETER (POSEIDON-2) TOPEX/POSEIDON Platform Name: Topography Experiment/Poseidon (TOPEX/POSEIDON) Orbit Period: 112.43 minutes Inclination Angle: 66.04 degrees / ALT (TOPEX) SENSOR Name: TOPEX ALTIMETER (ALT (TOPEX)) Swath Width: 5.0 kilometers Description: Spacecraft angular distance from orbital plane relative to the Equator. TOPEX/POSEIDON Platform Name: Topography Experiment/Poseidon (TOPEX/POSEIDON) Orbit Period: 112.43 minutes Inclination Angle: 66.04 degrees / TMR SENSOR Name: TOPEX MICROWAVE RADIOMETER (TMR) Swath Width: 5.0 kilometers Description: Spacecraft angular distance from orbital plane relative to the Equator. TOPEX/POSEIDON Platform Name: Topography Experiment/Poseidon (TOPEX/POSEIDON) Orbit Period: 112.43 minutes Inclination Angle: 66.04 degrees / SSALT SENSOR Name: POSEIDON Solid State Radar Altimeter (SSALT) Swath Width: 5.0 kilometers Description: Spacecraft angular distance from orbital plane relative to the Equator. NOAA-17 Platform Name: National Oceanic & Atmospheric Administration-17 (NOAA-17) Orbit Period: 101.2 minutes Inclination Angle: 98.7 degrees / AVHRR-3 SENSOR Name: Advanced Very High Resolution Radiometer-3 (AVHRR-3) Swath Width: 2400.0 kilometers Description: Spacecraft angular distance from orbital plane relative to the Equator. GRACE Platform Name: Gravity Recovery and Climate Experiment (GRACE) Orbit Period: -1.0 minutes Inclination Angle: 89.0 degrees / GRACE-FO ACC SENSOR Name: GRACE-FO SuperSTAR Accelerometer (GRACE-FO ACC) Swath Width: -1.0 kilometers Description: Spacecraft angular distance from orbital plane relative to the Equator. GRACE Platform Name: Gravity Recovery and Climate Experiment (GRACE) Orbit Period: -1.0 minutes Inclination Angle: 89.0 degrees / GRACE-FO KBR SENSOR Name: GRACE-FO K-Band Ranging System (GRACE-FO KBR) Swath Width: -1.0 kilometers Description: Spacecraft angular distance from orbital plane relative to the Equator. GRACE Platform Name: Gravity Recovery and Climate Experiment (GRACE) Orbit Period: -1.0 minutes Inclination Angle: 89.0 degrees / GRACE SCA SENSOR Name: Star Camera Assembly (GRACE SCA) OSTM/JASON-2 Platform Name: Ocean Surface Topography Mission/Jason-2 (OSTM/JASON-2) Orbit Period: 112.43 minutes Inclination Angle: 66.04 degrees / AMR SENSOR Name: Advanced Microwave Radiometer (AMR) OSTM/JASON-2 Platform Name: Ocean Surface Topography Mission/Jason-2 (OSTM/JASON-2) Orbit Period: 112.43 minutes Inclination Angle: 66.04 degrees / POSEIDON-3 SENSOR Name: OSTM/Jason-2 RADAR alitmieter (POSEIDON-3) Swath Width: 5.1 kilometers Description: Spacecraft angular distance from orbital plane relative to the Equator. DMSP 5D-2/F10 Platform Name: Defense Meteorological Satellite Program-F10 (DMSP 5D-2/F10) Orbit Period: 102.0 minutes Inclination Angle: 98.8 degrees / SSM/I SENSOR Name: Special Sensor Microwave Imager (SSM/I) Swath Width: 1394.0 kilometers Description: Spacecraft angular distance from orbital plane relative to the Equator. DMSP 5D-2/F11 Platform Name: Defense Meteorological Satellite Program-F11 (DMSP 5D-2/F11) Orbit Period: 102.0 minutes Inclination Angle: 98.8 degrees / SSM/I SENSOR Name: Special Sensor Microwave Imager (SSM/I) Swath Width: 1394.0 kilometers Description: Spacecraft angular distance from orbital plane relative to the Equator. ERS-2 Platform Name: European Remote Sensing Satellite-2 (ERS-2) Orbit Period: 100.3 minutes Inclination Angle: 98.5 degrees / ERS-2 Altimeter SENSOR Name: European Remote Sensing 2 altimeter (ERS-2 Altimeter) GFO Platform Name: GEOSAT FOLLOW-ON-1 (GFO) Orbit Period: 33220.0 minutes Inclination Angle: 108.0 degrees / GFO Altimeter SENSOR Name: Geosat Follow On Altimeter (GFO Altimeter) NOAA-16 Platform Name: National Oceanic & Atmospheric Administration-16 (NOAA-16) Orbit Period: 102.1 minutes Inclination Angle: 99.0 degrees / AVHRR-3 SENSOR Name: Advanced Very High Resolution Radiometer-3 (AVHRR-3) Swath Width: 2400.0 kilometers Description: Spacecraft angular distance from orbital plane relative to the Equator. NOAA-19 Platform Name: National Oceanic & Atmospheric Administration-19 (NOAA-19) Orbit Period: 102.12 minutes Inclination Angle: 98.74 degrees / AVHRR-3 SENSOR Name: Advanced Very High Resolution Radiometer-3 (AVHRR-3) Swath Width: 2400.0 kilometers Description: Spacecraft angular distance from orbital plane relative to the Equator. ENVISAT Platform Name: Environmental Satellite (ENVISAT) Orbit Period: 100.59 minutes Inclination Angle: 98.55 degrees / RA-2 SENSOR Name: Radar Altimeter 2 (RA-2) Swath Width: 5.0 kilometers Description: Spacecraft angular distance from orbital plane relative to the Equator. QUIKSCAT Platform Name: QUIKSCAT (QUIKSCAT) Orbit Period: 100.93 minutes Inclination Angle: 98.6 degrees / SEAWINDS SENSOR Name: SeaWinds Scatterometer (SEAWINDS) Swath Width: 1800.0 kilometers Description: Spacecraft angular distance from orbital plane relative to the Equator. DMSP 5D-2/F14 Platform Name: Defense Meteorological Satellite Program-F14 (DMSP 5D-2/F14) Orbit Period: 102.0 minutes Inclination Angle: 98.8 degrees / SSM/I SENSOR Name: Special Sensor Microwave Imager (SSM/I) Swath Width: 1394.0 kilometers Description: Spacecraft angular distance from orbital plane relative to the Equator. ERS-1 Platform Name: European Remote Sensing Satellite-1 (ERS-1) Orbit Period: 100.3 minutes Inclination Angle: 98.5 degrees / ERS-1 ALTIMETER SENSOR Name: European Remote Sensing 1 altimeter (ERS-1 ALTIMETER) Swath Width: 143.0 kilometers Description: Spacecraft angular distance from orbital plane relative to the Equator. DMSP 5D-2/F13 Platform Name: Defense Meteorological Satellite Program-F13 (DMSP 5D-2/F13) Orbit Period: 102.0 minutes Inclination Angle: 98.8 degrees / SSM/I SENSOR Name: Special Sensor Microwave Imager (SSM/I) Swath Width: 1394.0 kilometers Description: Spacecraft angular distance from orbital plane relative to the Equator. NOAA-20 Platform Name: National Oceanic & Atmospheric Administration-20 (NOAA-20) Orbit Period: 102.0 minutes Inclination Angle: 99.0 degrees / AVHRR-3 SENSOR Name: Advanced Very High Resolution Radiometer-3 (AVHRR-3) Swath Width: 2400.0 kilometers Description: Spacecraft angular distance from orbital plane relative to the Equator. METOP-A Platform Name: Meteorological Operational Satellite - A (METOP-A) Orbit Period: 101.3 minutes Inclination Angle: 98.7 degrees / AVHRR-3 SENSOR Name: Advanced Very High Resolution Radiometer-3 (AVHRR-3) Swath Width: 2400.0 kilometers Description: Spacecraft angular distance from orbital plane relative to the Equator. JASON-3 Platform Name: Jason-3 (JASON-3) Orbit Period: 112.0 minutes Inclination Angle: 66.05 degrees / POSEIDON-3B SENSOR Name: POSEIDON-3B (POSEIDON-3B) Swath Width: 5.1 kilometers Description: Spacecraft angular distance from orbital plane relative to the Equator. Show More
Project	Ocean Surface Current Analyses-Real time (OSCAR)
Data Provider	Publisher: PO.DAAC Creator: ESR; Dohan, Kathleen Release Place: CA, USA Release Date: 2022-Jan-27
Format	netCDF-4
Keyword(s)	oscar, currents, ocean currents, sea surface currents

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Resolution Spatial Resolution: 0.25 degrees (Latitude) x 0.25 degrees (Longitude) Temporal Resolution: Daily - < Weekly Coverage Region: GLOBAL OCEAN North Bounding Coordinate: 89.75 degrees South Bounding Coordinate: -89.75 degrees West Bounding Coordinate: -180 degrees East Bounding Coordinate: 180 degrees Time Span: 2021-Jan-01 to Present Projection Projection Type: Cylindrical Lat-Lon Projection Detail: Geolocation information included for each pixel

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https://podaac-tools.jpl.nasa.gov/drive/files/allData/oscar/L4/oscar_v2.0/docs/oscarv2guide.pdf User Guide

Citation

ESR; Dohan, Kathleen. 2022. Ocean Surface Current Analyses Real-time (OSCAR) Surface Currents - Near Real Time 0.25 Degree (Version 2.0). Ver. 2.0. PO.DAAC, CA, USA. Dataset accessed [YYYY-MM-DD] at https://doi.org/10.5067/OSCAR-25N20

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For more information see Data Citations and Acknowledgments.

Journal Reference

Bonjean, F., and G. S. E. Lagerloef. 2002. Diagnostic model and analysis of the surface currents in the tropical Pacific Ocean, American Meteorological Society, 32. https://doi.org//10.1175/1520-0485(2002)032%3C2938:DMAAOT%3E2.0.CO;2

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OSCAR_L4_OC_NRT_V2.0

Collection Concept ID:

C2102958977-POCLOUD

Spatial Coverage:

N: 89.75°

S: -89.75°

E: 180°

W: -180°

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Ocean Surface Current Analyses Real-time (OSCAR) Surface Currents - Near Real Time 0.25 Degree (Version 2.0)

Ocean Surface Current Analyses Real-time (OSCAR) Surface Currents - Near Real Time 0.25 Degree (Version 2.0)

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Ocean Surface Current Analyses Real-time (OSCAR) Surface Currents - Near Real Time 0.25 Degree (Version 2.0)

Ocean Surface Current Analyses Real-time (OSCAR) Surface Currents - Near Real Time 0.25 Degree (Version 2.0)

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