Data

33 years of globally calibrated wave height and wind speed data based on altimeter observations

Integrated Marine Observing System
Ribal, Agustinus ; Young, Ian
Viewed: [[ro.stat.viewed]] Cited: [[ro.stat.cited]] Accessed: [[ro.stat.accessed]]
ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=info:doiDOI: 10.26198/5c77588b32cc1&rft.title=33 years of globally calibrated wave height and wind speed data based on altimeter observations&rft.identifier=DOI: 10.26198/5c77588b32cc1&rft.description=This dataset consists of 33 years (1985 to 2018), of global significant wave height and wind speed obtained from 13 altimeters, namely: GEOSAT, ERS-1, TOPEX, ERS-2, GFO, JASON-1, ENVISAT, JASON-2, CRYOSAT-2, HY-2A, SARAL, JASON-3 and SENTINEL-3A. The altimeter data have been calibrated and validated against National Oceanographic Data Center (NODC) buoy data. Differences between altimeter and buoy data as a function of time are investigated for long-term stability. A cross validation between altimeters is also carried out in order to check the stability and consistency of the calibrations developed. Quantile-quantile comparisons between altimeter and buoy data as well as between altimeters are undertaking to test consistency of probability distributions and extreme value performance. The data were binned into 1o by 1o bins globally, to provide convenient access for users to download only the regions of interest. All data is quality controlled. This globally calibrated and cross-validated dataset provides a single point of storage for all altimeter missions in a consistent format. The ongoing IMOS (Integrated Marine Observing System) Surface Waves Sub-Facility Altimeter Wave/Wind database is available through the Australian Ocean Data Network portal (https://portal.aodn.org.au/search?uuid=91ae1b2f-39e4-4d30-a853-5deb774614ca), the main repository for marine data in Australia. The data represented by this metadata record is a snapshot of the database at the time of this publication (February 2019), and has been assigned a DOI and will be maintained in perpetuity by the AODN.Maintenance and Update Frequency: notPlannedStatement: The data has been calibrated against NDBC buoy data and validated with independent buoy measurements and at cross-over points with other altimeter missions. The long term stability of the data has been assessed against buoy data and any discontinuities which may occur due to changes in the processing techniques or instrumentation has been removed in the calibration process. Calibration details can be found in Young et al., 2017, JTech.Statement: This dataset replaces an earlier version (DOI: 10.26198/5c184f4a5cd2e (https://dx.doi.org/10.26198/5c184f4a5cd2e). An error was discovered in the NetCDFs in relation to the wind speed values, and these have been corrected in this version of the dataset.&rft.creator=Ribal, Agustinus &rft.creator=Young, Ian &rft.date=2019&rft.coverage=westlimit=-180.00; southlimit=-80.00; eastlimit=180.00; northlimit=80.00&rft.coverage=westlimit=-180.00; southlimit=-80.00; eastlimit=180.00; northlimit=80.00&rft_rights=Data, products and services from IMOS are provided as is without any warranty as to fitness for a particular purpose.&rft_rights=&rft_rights= http://creativecommons.org/licenses/by/4.0/&rft_rights=https://licensebuttons.net/l/by/4.0/88x31.png&rft_rights=WWW:LINK-1.0-http--related&rft_rights=License Graphic&rft_rights=Creative Commons Attribution 4.0 International License&rft_rights=http://creativecommons.org/international/&rft_rights=WWW:LINK-1.0-http--related&rft_rights=WWW:LINK-1.0-http--related&rft_rights=License Text&rft_rights=This is the bibliographic reference for the dataset and this metadata record that describes it: Ribal, A. and Young, I. 33 years of globally calibrated wave height and wind speed data based on altimeter observations. Australian Ocean Data Network https://dx.doi.org/10.26198/5c77588b32cc1 (2019).&rft_rights=Any use of this data must also be acknowledged using the following statement: Data was sourced from Australia’s Integrated Marine Observing System (IMOS) – IMOS is enabled by the National Collaborative Research Infrastructure strategy (NCRIS).&rft_rights=Creative Commons Attribution 4.0 International License http://creativecommons.org/licenses/by/4.0&rft_subject=oceans&rft_subject=SIGNIFICANT WAVE HEIGHT&rft_subject=EARTH SCIENCE&rft_subject=OCEANS&rft_subject=OCEAN WAVES&rft_subject=SURFACE WINDS&rft_subject=OCEAN WINDS&rft_subject=SEA STATE&rft_subject=SWELLS&rft_subject=WIND WAVES&rft_subject=Surface Waves Sub-Facility, Integrated Marine Observing System (IMOS)&rft_subject=Global / Oceans | World&rft_subject=orbiting satellite&rft_subject=Significant height of waves on the water body&rft_subject=Eastward wind velocity in the atmosphere&rft_subject=Northward wind velocity in the atmosphere&rft_subject=Wind speed in the atmosphere&rft_subject=radar altimeters&rft.type=dataset&rft.language=English Access the data
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Data, products and services from IMOS are provided "as is" without any warranty as to fitness for a particular purpose.

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License Text

This is the bibliographic reference for the dataset and this metadata record that describes it: Ribal, A. and Young, I. 33 years of globally calibrated wave height and wind speed data based on altimeter observations. Australian Ocean Data Network https://dx.doi.org/10.26198/5c77588b32cc1 (2019).

Any use of this data must also be acknowledged using the following statement: "Data was sourced from Australia’s Integrated Marine Observing System (IMOS) – IMOS is enabled by the National Collaborative Research Infrastructure strategy (NCRIS)."

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Brief description

This dataset consists of 33 years (1985 to 2018), of global significant wave height and wind speed obtained from 13 altimeters, namely: GEOSAT, ERS-1, TOPEX, ERS-2, GFO, JASON-1, ENVISAT, JASON-2, CRYOSAT-2, HY-2A, SARAL, JASON-3 and SENTINEL-3A. The altimeter data have been calibrated and validated against National Oceanographic Data Center (NODC) buoy data. Differences between altimeter and buoy data as a function of time are investigated for long-term stability. A cross validation between altimeters is also carried out in order to check the stability and consistency of the calibrations developed. Quantile-quantile comparisons between altimeter and buoy data as well as between altimeters are undertaking to test consistency of probability distributions and extreme value performance. The data were binned into 1o by 1o bins globally, to provide convenient access for users to download only the regions of interest. All data is quality controlled. This globally calibrated and cross-validated dataset provides a single point of storage for all altimeter missions in a consistent format. The ongoing IMOS (Integrated Marine Observing System) Surface Waves Sub-Facility Altimeter Wave/Wind database is available through the Australian Ocean Data Network portal (https://portal.aodn.org.au/search?uuid=91ae1b2f-39e4-4d30-a853-5deb774614ca), the main repository for marine data in Australia. The data represented by this metadata record is a snapshot of the database at the time of this publication (February 2019), and has been assigned a DOI and will be maintained in perpetuity by the AODN.

Lineage

Maintenance and Update Frequency: notPlanned
Statement: The data has been calibrated against NDBC buoy data and validated with independent buoy measurements and at cross-over points with other altimeter missions. The long term stability of the data has been assessed against buoy data and any discontinuities which may occur due to changes in the processing techniques or instrumentation has been removed in the calibration process. Calibration details can be found in Young et al., 2017, JTech.
Statement: This dataset replaces an earlier version (DOI: 10.26198/5c184f4a5cd2e (https://dx.doi.org/10.26198/5c184f4a5cd2e). An error was discovered in the NetCDFs in relation to the wind speed values, and these have been corrected in this version of the dataset.

Notes

Credit
Australia’s Integrated Marine Observing System (IMOS) is enabled by the National Collaborative Research Infrastructure Strategy (NCRIS). It is operated by a consortium of institutions as an unincorporated joint venture, with the University of Tasmania as Lead Agent.
Credit
Australian Research Council (ARC) Grants: DP130100215 and DP160100738

Created: 28 02 2019

Data time period: 31 03 1985

This dataset is part of a larger collection

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text: westlimit=-180.00; southlimit=-80.00; eastlimit=180.00; northlimit=80.00

Subjects
EARTH SCIENCE | Eastward wind velocity in the atmosphere | Global / Oceans | World | Northward wind velocity in the atmosphere | OCEAN WAVES | OCEAN WINDS | OCEANS | Sea State | Significant Wave Height | Surface Winds | Swells | Significant height of waves on the water body | Surface Waves Sub-Facility, Integrated Marine Observing System (IMOS) | Wind Waves | Wind speed in the atmosphere | oceans | orbiting satellite | radar altimeters |

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Other Information
(Website of the IMOS Surface Waves Sub-Facility)

uri : http://imos.org.au/facilities/srs/surface-waves/

(Data paper in Scientific Data)

uri : https://www.nature.com/articles/s41597-019-0083-9

(Link to article on calibration)

doi : https://journals.ametsoc.org/doi/pdf/10.1175/JTECH-D-16-0145.1

global : c2d47a05-2bb7-4649-ba05-d314e8f2105b

Identifiers
  • global : 9e2ba32a-5da3-4ea5-b750-e6279680dd71
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