Dataset: Monthly Cumulative Upwelling Index

Name: Monthly Regional Cumulative Upwelling Index (Ekman transport) for California and Benguela Ecosystems from 1979-2014
Published: 2017-01-17
Keywords: oceans

Cite This Dataset

DOI:10.26008/1912/bco-dmo.674979.1

Temporal Extent: 1979-01 - 2014-12

Project:

Climate Change and Upwelling -- Comparative Analysis of Current and Future Responses of the California and Benguela Ecosystems (CalBenJI)

Principal Investigator:

Bryan Black (University of Texas at Austin, UT Austin)

Co-Principal Investigator:

Steven Bograd (National Oceanic and Atmospheric Administration - Southwest Fisheries Science Center, NOAA SWFSC ERD)

Marisol Garcia Reyes (Farallon Institute for Advanced Ecosystem Research)

William Sydeman (Farallon Institute for Advanced Ecosystem Research)

Contact:

Marisol Garcia Reyes (Farallon Institute for Advanced Ecosystem Research)

BCO-DMO Data Manager:

Shannon Rauch (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Version:

Version Date:

2017-01-17

Restricted:

Validated:

Yes

Current State:

Final no updates expected

Monthly Regional Cumulative Upwelling Index (Ekman transport) for California and Benguela Ecosystems from 1979-2014

Abstract:

Monthly Regional Cumulative Upwelling Index (Ekman transport) for California and Benguela Ecosystems from 1979-2014/

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Archival Copy

Version Date	Archive	Persistent Identifier (PID)	Date PID Issued
2017-01-17	Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)	10.26008/1912/bco-dmo.674979.1	2021-12-27

Description

Monthly Cumulative Ekman Transport for three regions in the Benguela and California Current Ecosystems from 1979-2014.

Methods & Sampling

Monthly Cumulative Ekman Transport (reported in units of m3/s/100m) was determined for three regions in the Benguela and California Current Ecosystems.

Regions defined as (all along-shore):
Northern California: 40-45 N
Central California: 35-40 N
Southern California: 30-35 N
Northern Benguela: 15-30 S
Southern Benguela: 30-35 S
Agulhas Bank: 32-35 S, 20-30 E

Daily averaged NCEP-DOE Reanalysis 2 wind vectors with spatial resolution of 2.5x2.5 degrees were used to calculate these upwelling indices. These wind data were available from 1979 to 2014.

Data Processing Description

Data processing:
Alongshore components of wind were calculated (rotated wind vectors) for each 2.5x2.5 coastal grid cell, and transformed to wind stress. For each grid cell, daily offshore Ekman transport was calculated in m3/s/100m. Monthly cumulative upwelling index was calculated by summing all adding positive offshore transport during a month and then averaging within each region.

BCO-DMO Processing:
- modified parameter names to conform with BCO-DMO naming conventions;
- replaced NaN with nd ("no data").

Data Files

File
upwelling.csv (Comma Separated Values (.csv), 19.55 KB) MD5:f36e7636a3ae2d00fe739cfd19c270d6 Primary data file for dataset ID 674979

More Information about this dataset

Funding Sources

Funding Source	Award Number
NSF Division of Ocean Sciences	OCE-1434732

Deployments

None available yet

Instruments

None available yet

Parameters

Date and time formats are described in python strftime() syntax.

Supplied Name	Supplied description	Supplied Units	Standard Name
year	Four-digit year	unitless	year
month	One- or two-digit month (1-12)	unitless	no_bcodmo_term
Northern_CA	Northern California (40-45 N) Ekman transport	cubic meters per second per 100-meters (m3/s/100m)	no_bcodmo_term
Central_CA	Central California (35-40 N) Ekman transport	m3/s/100m	no_bcodmo_term
Southern_CA	Southern California (30-35 N) Ekman transport	m3/s/100m	no_bcodmo_term
Northern_Benguela	Northern Benguela (15-30 S) Ekman transport	m3/s/100m	no_bcodmo_term
Southern_Benguela	Southern Benguela (30-35 S) Ekman transport	m3/s/100m	no_bcodmo_term
Agulhas_Bank	Agulhas Bank (32-35 S, 20-30 E) Ekman transport	m3/s/100m	no_bcodmo_term

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Database

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Dataset: Monthly Cumulative Upwelling Index