ALES Jason-2 Coastal Altimetry Version 1

ALES Jason-2 Coastal Altimetry Version 1
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DOINot Registered
Short NameALES_L2_OST_JASON2_V1
DescriptionAdaptive Leading Edge Subwaveform (ALES) provides coastal and open ocean altimetric measurements by applying a specialized retracker to Jason-2 data. This is an along-track dataset that takes takes the high frequency SGDR data and retracks it to remove the waveforms that show land contamination. Therefore these data are provided at 20 Hz. It is similar to the Jason-2 SGDR data except that it also includes ALES variables for the range, significant wave height and sigma0 so that the user can calculate the retracked SSHA.
Version1
Dataset TypeOPEN
MeasurementOceans > Sea Surface Topography > Sea Surface Height > None
Oceans > Ocean Waves > Significant Wave Height > None
Processing Level2
CoverageRegion: Global
Northernmost Latitude: 66 degrees
Southernmost Latitude: -66 degrees
Westernmost Longitude: 0 degrees
Easternmost Longitude: 360 degrees
Time Span: 2008-Jul-04 to Present
ResolutionSpatial Resolution: 11.2 km (Along) x 5.1 km (Across)
ProjectionType: Swath
Detail:
Ellipsoid:
Latency hours
Swath Width- km
Sample Frequency20
Temporal Repeat (Nominal)10 Day
Temporal Repeat (Min)-
Temporal Repeat (Max)-
Platform/Sensor
OSTM/Jason-2
Platform
Name: Ocean Surface Topography Mission/Jason-2 (OSTM/Jason-2)
Orbit Period: 112.43 minutes
Inclination Angle: 66.04 degrees
Ascending Node: 1970-Jan-01 00:00:00
/
TRSR
SENSOR
Name: Turbo Rouge Space Receiver (TRSR)
Swath Width: - km
Description: The TRSR isa an advanced codeless sixteen-channel Global Positioning System (GPS) receiver developed bye the Jet Propulsion Laboratory (JPL). The on-board package is comprised of dual redunedant TRSR units and choke ring antennae. The GPS data are intended to provide supplementary positioning data in support of the POD function and/or to improve gravity field models.

OSTM/Jason-2
Platform
Name: Ocean Surface Topography Mission/Jason-2 (OSTM/Jason-2)
Orbit Period: 112.43 minutes
Inclination Angle: 66.04 degrees
Ascending Node: 1970-Jan-01 00:00:00
/
POSEIDON-3
SENSOR
Name: OSTM/Jason-2 RADAR alitmieter (POSEIDON-3)
Swath Width: 5.1 km
Description: The Poseidon-3 altimeter, operating at 13.575 GHz (Ku band) and 5.3 GHz (C band), is the primary sensor for the OSTM mission. The measurements made at the two frequencies are combined to obtain measurements of the altimeter range, wind speed, significant wave height, and the ionoshperic correction. The Poseidon-3 package consists of dual redundant altimeter units each of which has low mass and low power consumption.

OSTM/Jason-2
Platform
Name: Ocean Surface Topography Mission/Jason-2 (OSTM/Jason-2)
Orbit Period: 112.43 minutes
Inclination Angle: 66.04 degrees
Ascending Node: 1970-Jan-01 00:00:00
/
AMR
SENSOR
Name: Advanced Microwave Radiometer (AMR)
Swath Width: - km
Description: -

ProjectOcean Surface Topography Mission/Jason-2 (OSTM)
Data ProviderCreator: Passaro, M., P. Cipollini, S. Vignudelli, G. D. Quartly, and H. M. Snaith
Release Place: PO.DAAC
Release Date: 2015-Aug-31
Resource: -
Keyword(s)Sea Level Anomaly, Sea Surface Height, Sea Surface Height Anomaly, SSHA, SSH, SLA, SWH
Persistent IDPODAAC-ALESC-J2001
Questions related to this dataset? Contact podaac@podaac.jpl.nasa.gov
Citation Passaro, M., P. Cipollini, S. Vignudelli, G. D. Quartly, and H. M. Snaith. 2015. ALES Jason-2 Coastal Altimetry Version 1. Ver. 1. PO.DAAC, CA, USA. Dataset accessed [YYYY-MM-DD].

For more information see Data Citations and Acknowledgments.

Journal Reference