Short Citation
Pacific Islands Fisheries Science Center, 2026: OW AVISO Sea-Surface Height & Niiler Climatology, https://www.fisheries.noaa.gov/inport/item/3719.
Full Citation Examples

Abstract

The dataset contains satellite-derived sea-surface height measurements collected by means of the TOPEX/Poseidon/ERS, JASON-1/Envisat, and Jason-2/Envisat satellite sensors. Reprocessed science quality monthly and weekly delayed data is collected when available from AVISO, Near-real time data is collected daily is available as weekly 7-day composites. All data is at a spatial resolution of approximately 0.25 degrees. The geographic coverage is global, and the temporal coverage ranges from 1993-present. The data is combined with a Niiler Climatology (Niiler et al., 1994) to obtain absolute sea surface heights.

Geostrophic currents (u and v components) are mathematically derived, and available at a spatial resolution of 0.5º.

Purpose

To provide users with near real-time and historical sea-surface height and geostrophic current data.

Monthly SSH data

Access Constraints:

Access to this dataset by PIFSC staff through the OceanWatch Coordinator

https://oceanwatch.pifsc.noaa.gov/erddap/griddap/OceanWatch_aviso_ssh_monthly.html

Delayed-time monthly sea surface height (SSH)
https://oceanwatch.pifsc.noaa.gov/erddap/griddap/OceanWatch_aviso_ssh_weekly.html

Delayed-time weekly sea surface height (SSH)
https://oceanwatch.pifsc.noaa.gov/erddap/griddap/OceanWatch_aviso_ssh_nrt.html

Near-real-time weekly sea surface height (SSH)
https://oceanwatch.pifsc.noaa.gov/erddap/griddap/OceanWatch_aviso_uv_monthly.html

Delayed-time monthly geostrophic currents (U and V)
https://oceanwatch.pifsc.noaa.gov/erddap/griddap/OceanWatch_aviso_uv_weekly.html

Delayed-time weekly geostrophic currents (U and V)
https://oceanwatch.pifsc.noaa.gov/erddap/griddap/OceanWatch_aviso_uv_NRT.html

Near-real-time weekly geostrophic currents (U and V)

No Child Items for this record.

Point of Contact
Hui Shi
hui.shi@noaa.gov

Point of Contact
Melanie GA Abecassis
melanie.abecassis@noaa.gov
(808)725-5569

Metadata Contact
Hui Shi
hui.shi@noaa.gov

Metadata Contact
Melanie GA Abecassis
melanie.abecassis@noaa.gov
(808)725-5569

Geographic Area 1

-180° W, 180° E, 70° N, -70° S

Global

Time Frame 1
1992-10-08 - Present

Title:	OW AVISO Sea-Surface Height & Niiler Climatology
Status:	In Work
Abstract:	The dataset contains satellite-derived sea-surface height measurements collected by means of the TOPEX/Poseidon/ERS, JASON-1/Envisat, and Jason-2/Envisat satellite sensors. Reprocessed science quality monthly and weekly delayed data is collected when available from AVISO, Near-real time data is collected daily is available as weekly 7-day composites. All data is at a spatial resolution of approximately 0.25 degrees. The geographic coverage is global, and the temporal coverage ranges from 1993-present. The data is combined with a Niiler Climatology (Niiler et al., 1994) to obtain absolute sea surface heights. Geostrophic currents (u and v components) are mathematically derived, and available at a spatial resolution of 0.5º.
Purpose:	To provide users with near real-time and historical sea-surface height and geostrophic current data.
Supplemental Information:	Spatial Resolution: 0.25 degree Spatial Keywords: Degrees Temporal Resolution: Weekly, monthly Frequency of Collection: Bi-weekly Types of Data Collected: Satellite-based ocean sea_surface height Collection Method: Satellite remote sensing Recording Media: Digital Collection Standards of the Data or Creation Standards of the Data Product: Available Validation and QC Procedures: Available QC Standards: Available Automated QC Procedures: Available Storage Location: NOAA OceanWatch - Central Pacific Storage Media: Server Storage Format: NetCDF Security and Integrity Plans: Available Backups: Available Storage and Security Documentation: Available Data Update Schedule: Bi-weekly Privileges: Restricted Restrictions: Access to this dataset by PIFSC staff through the OceanWatch Coordinator (http://oceanwatch.pifsc.noaa.gov) Request Protocol: Contact the OceanWatch Coordinator Contact: OceanWatch Coordinator (http://oceanwatch.pifsc.noaa.gov) Data Distribution Methods: Via NOAA OceanWatch - Central Pacific Web Site (http://oceanwatch.pifsc.noaa.gov) Format of Data/Product on Web Server: NetCDF Metadata Depository Location: NOAA OceanWatch - Central Pacific Metadata Deposition Frequency - Bi-weekly Metadata Description Standard: FGDC (Federal Geographic Data Committee) Metadata Description Format: NetCDF

Theme Keywords

Thesaurus

Keyword

UNCONTROLLED

None

geostrophic currents

None

global

None

JASON

None

Niiler

None

ow

None

pifsc

None

Poseidon

None

remote sensing

None

satellite

None

sea surface height

None

SSH

None

TOPEX

Temporal Keywords

Thesaurus

Keyword

UNCONTROLLED

None

monthly

None

Weekly

Organization:	Pacific Islands Fisheries Science Center
City:	Honolulu
State/Province:	HI
Country:	USA

Data Set Scope Code:	Data Set
Data Presentation Form:	Table (digital)
Entity Attribute Overview:	Satellite-derived sea-surface height measurements

Data Steward

CC ID: 1392550

Date Effective From:	2025-06-09
Date Effective To:
Contact (Person):	Rykaczewski, Ryan R
Address:	1845 Wasp Blvd. Honolulu, HI 96818 USA
Email Address:	ryan.rykaczewski@noaa.gov

Data Steward

CC ID: 372882

Date Effective From:	2017-01-09
Date Effective To:
Contact (Person):	Howell, Evan A
Address:	1845 Wasp Blvd. Honolulu, HI 96818 USA
ORCID:	https://orcid.org/0000-0001-9904-4633
Email Address:	evan.howell@noaa.gov

Data Steward

CC ID: 372883

Date Effective From:	2015-12-09
Date Effective To:
Contact (Person):	Abecassis, Melanie GA
Address:	1845 Wasp Blvd. Honolulu, HI 96818 USA
Email Address:	melanie.abecassis@noaa.gov
Phone:	(808)725-5569

Distributor

CC ID: 372885

Date Effective From:	2012
Date Effective To:
Contact (Organization):	Pacific Islands Fisheries Science Center (PIFSC)
Address:	1845 Wasp Blvd. Honolulu, HI 96818 USA
ROR:	https://ror.org/02apffz65
Email Address:	pifsc.info@noaa.gov
Phone:	808-725-5360
URL:	https://www.pifsc.noaa.gov
Business Hours:	8:00 a.m. - 4:30 p.m.

Metadata Contact

CC ID: 1392559

Date Effective From:	2025-06-09
Date Effective To:
Contact (Person):	Shi, Hui
Address:	1845 Wasp Blvd. Honolulu, HI 96818 USA
Email Address:	hui.shi@noaa.gov

Metadata Contact

CC ID: 372886

Date Effective From:	2015-12-09
Date Effective To:
Contact (Person):	Abecassis, Melanie GA
Address:	1845 Wasp Blvd. Honolulu, HI 96818 USA
Email Address:	melanie.abecassis@noaa.gov
Phone:	(808)725-5569

Point of Contact

CC ID: 1392553

Date Effective From:	2025-06-09
Date Effective To:
Contact (Person):	Shi, Hui
Address:	1845 Wasp Blvd. Honolulu, HI 96818 USA
Email Address:	hui.shi@noaa.gov

Point of Contact

CC ID: 372888

Date Effective From:	2015-12-09
Date Effective To:
Contact (Person):	Abecassis, Melanie GA
Address:	1845 Wasp Blvd. Honolulu, HI 96818 USA
Email Address:	melanie.abecassis@noaa.gov
Phone:	(808)725-5569

View Historical Support Roles

Currentness Reference:	Ground Condition

Extent Group 1

Extent Group 1 / Geographic Area 1

CC ID: 7449

W° Bound:	-180
E° Bound:	180
N° Bound:	70
S° Bound:	-70
Description	Global

Extent Group 1 / Time Frame 1

CC ID: 7451

Time Frame Type:	Continuing
Start:	1992-10-08

Security Class:

Sensitive

Data Access Procedure:

Contact the OceanWatch Coordinator

(http://oceanwatch.pifsc.noaa.gov)

Data Access Constraints:

Access to this dataset by PIFSC staff through the OceanWatch Coordinator

Distribution 1

CC ID: 268393

Download URL:	https://oceanwatch.pifsc.noaa.gov/erddap/griddap/OceanWatch_aviso_ssh_monthly.html
Distributor:
File Name:	Monthly SSH data

URL 1

CC ID: 7450

URL:	https://oceanwatch.pifsc.noaa.gov/erddap/griddap/OceanWatch_aviso_ssh_monthly.html
Description:	Delayed-time monthly sea surface height (SSH)

URL 2

CC ID: 381071

URL:	https://oceanwatch.pifsc.noaa.gov/erddap/griddap/OceanWatch_aviso_ssh_weekly.html
Description:	Delayed-time weekly sea surface height (SSH)

URL 3

CC ID: 381072

URL:	https://oceanwatch.pifsc.noaa.gov/erddap/griddap/OceanWatch_aviso_ssh_nrt.html
Description:	Near-real-time weekly sea surface height (SSH)

URL 4

CC ID: 381074

URL:	https://oceanwatch.pifsc.noaa.gov/erddap/griddap/OceanWatch_aviso_uv_monthly.html
Description:	Delayed-time monthly geostrophic currents (U and V)

URL 5

CC ID: 381075

URL:	https://oceanwatch.pifsc.noaa.gov/erddap/griddap/OceanWatch_aviso_uv_weekly.html
Description:	Delayed-time weekly geostrophic currents (U and V)

URL 6

CC ID: 381076

URL:	https://oceanwatch.pifsc.noaa.gov/erddap/griddap/OceanWatch_aviso_uv_NRT.html
Description:	Near-real-time weekly geostrophic currents (U and V)

Quality Control Procedures Employed:	Quality control is done by the source of the data (AVISO).

Have Resources for Management of these Data Been Identified?:	Yes
Approximate Percentage of Budget for these Data Devoted to Data Management:	Unknown
Do these Data Comply with the Data Access Directive?:	Yes
Is Access to the Data Limited Based on an Approved Waiver?:	Yes
Approximate Delay Between Data Collection and Dissemination:	1 year
Actual or Planned Long-Term Data Archive Location:	Unable to Archive
If To Be Determined, Unable to Archive, or No Archiving Intended, Explain:	Data volume is too large to archive externally.
Approximate Delay Between Data Collection and Archiving:	1 year
How Will the Data Be Protected from Accidental or Malicious Modification or Deletion Prior to Receipt by the Archive?:	PIFSC ITS conducts regularly scheduled backups and security checks

Lineage Statement:	Data is received from AVISO and processed to make it into a format compatible with the Live Access Server and the THREDDS server.

Catalog Item ID:	3719
GUID:	gov.noaa.nmfs.inport:3719
Metadata Record Created By:	Brent M Miyamoto
Metadata Record Created:	2007-03-19 10:15+0000
Metadata Record Last Modified By:	SysAdmin InPortAdmin
Metadata Record Last Modified:	2026-03-04 19:17+0000
Metadata Record Published:	2017-02-13
Owner Org:	PIFSC
Metadata Publication Status:	Published Externally
Do Not Publish?:	N
Metadata Last Review Date:	2017-02-13
Metadata Review Frequency:	1 Year
Metadata Next Review Date:	2018-02-13

OW AVISO Sea-Surface Height & Niiler Climatology

Summary

Data Access & Downloads

URLs

Child Items

Contact Information

Extents

Item Identification

Keywords

Theme Keywords

Temporal Keywords

Physical Location

Data Set Information

Support Roles

Data Steward

Data Steward

Data Steward

Distributor

Metadata Contact

Metadata Contact

Point of Contact

Point of Contact

Extents

Extent Group 1

Extent Group 1 / Geographic Area 1

Extent Group 1 / Time Frame 1

Access Information

Distribution Information

Distribution 1

URLs

URL 1

URL 2

URL 3

URL 4

URL 5

URL 6

Data Quality

Data Management

Lineage

Catalog Details