AVISO sea level anomalies


1. IDENTIFICATION INFORMATION

Name AVISO sea level anomalies
Abbreviation AVISO SLAs
Metadata Identifier AVISO_SLAs20230727075605-en

2. CONTACT

2.1 CONTACT on DATASET

Name Hiromichi Igarashi
Organization JAMSTEC/DrC
Address 3173-25,Showa-machi,Kanazawa-ku, Yokohama, Kanagawa, 236-0001, Japan
E-mail higarashi@jamstec.go.jp

2.2 CONTACT on PROJECT

3. DOCUMENT AUTHOR

Name Hiromichi Igarashi
Organization JAMSTEC/DrC
E-mail higarashi@jamstec.go.jp

4. DATASET CREATOR

Name Segment Sol multimissions dALTimétrie, dOrbitographie et de localisation précise

5. DATE OF THIS DOCUMENT

2023-07-27

6. DATE OF DATASET

  • revision : 2008-03-17

7. DATASET OVERVIEW

7.1 Abstract

The 1/3 degree Mercator gridded weekly merged sea-level anomalies (SLAs) data set is distributed by archiving, validation and interpretation of Satellite Oceanographic data (AVISO). SLA were merged from four satellite missions (TOPEX/Poseidon, ERS-1/2, Jason-1 and ENVISAT) using the

optimum interpolation technique (Le Traon et al., 1998).

The horizontal resolution of SLA maps is sufficient to investigate

mesoscale eddies with horizontal scales from 100 to 200 km.

7.2 Topic Category(ISO19139)

  • oceans

7.3 Temporal Extent

Begin Date 1992-10-14
End Date 2009-07-22
Temporal Characteristics daily,7days,30days

7.4 Geographic Bounding Box

North bound latitude 82
West bound longitude -180
Eastbound longitude 180
South bound latitude -82

7.5 Grid

Dimension Name Dimension Size (slice number of the dimension) Resolution Unit
row 1080 0.333333333333333333 (deg)
column 915 0.333333333333333333 (deg)

7.6 Geographic Description

global

7.7 Keywords

7.7.1 Keywords on Dataset

Keyword Type Keyword Keyword thesaurus Name
theme ocean, altimetry, satellite

7.7.2 Keywords on Project

7.9 Data Environmental Information

7.10 Distribution Information

name version specification

8. DATA PROCESSING

8.1 Data Processing (1)

8.1.1 General Explanation of the data producer's knowledge about the lineage of a dataset

8.1.2 Data Source

Data Source Citation Name Description of derived parameters and processing techniques used

9. DATA REMARKS

10. DATA POLICY

10.1 Data Policy by the Data Provider

When using Ssalto/Duacs data (NRT or DT-(M)SLA and (M)ADT), please cite: "The altimeter products were produced by Ssalto/Duacs and distributed by Aviso, with support from Cnes (http://www.aviso.oceanobs.com/duacs/)".

10.2 Data Policy by the Project

11. LICENSE

12. DATA SOURCE ACKNOWLEDGEMENT

12.1 Acknowledge the Data Provider

12.2 Acknowledge the Project

13. REFERENCES

Le Traon, P.-Y., Nadal, F., Ducet, N., 1998. An improved mapping method of multisatellite altimeter data. Journal Atmospheric and Oceanic Technology 15, 522-534.