Century-scale Time Series of Regional Rainfall Anomalies in Africa in CDIAC, Trends '93

Federal Geographic Data Committee (FGDC) Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: Unknown
Publication_Date: Unknown
Title: Century-scale Time Series of Regional Rainfall Anomalies in Africa in CDIAC, Trends '93
Description:
Abstract:
The annual time series of regional rainfall anomalies for Africa have been constructed by Hulme using the global monthly precipitation dataset held in the Climatic Research Unit (CRU) at the University of East Anglia. The CRU dataset consists of historical time series of monthly precipitation for more than 8200 stations worldwide, of which 2150 lie within Africa. Time series of regional rainfall anomalies over three regions for about the last 100 years were produced using individual station time series. The three regions are: Sahel (defined as the portion of sub-Saharan Africa that received 100-600 mm mean annual rainfall over the period 1931-1990) East Africa (Uganda, Kenya, and Tanzania Southwestern Africa (the area that received 100-600 mm mean annual rainfall over the period 1931/32 - 1990/91). Annual rainfall anomalies for these regions are expressed as rainfall anomaly indices (RAI's) which are calculated from individual stations' standardized rainfall. The citation for this dataset is: Hulme, M. 1994. "Century-scale time series of regional rainfall anomalies in Africa", pp. 964-973. In T.A. Boden, D.P. Kaiser, R.J. Sepanski, and F.W. Stoss (eds.), Trends '93: A Compendium of Data on Global Change. ORNL/CDIAC-65. Carbon Dioxide Information Analysis Center, Oak Ridge National Laboratory, Oak Ridge, TN, USA The Hulme African precipitation data is available via ftp from: "ftp://cdiac.esd.ornl.gov/pub/trends93/precip" CDIAC has provided an anonymous FTP area to all data files, retrieval codes, and descriptive files for all data available in CDIAC's anonymous FTP in pub/trends93/co2. The FTP address is CDIAC.ESD.ORNL.GOV and 128.219.24.36 and input your email address as the password. The data bases are arranged as subdirectories in /pub/trends93/ (co2, ch4, trace, emiss, precip, and temp) that correspond to major chapter headings in Trends '93. The data files are arranged as xxxxx.yyy where xxxxx is the name of the station, country, site, region, or principle investigator and yyy is the page number in Trends '93 (example: vostok.009 refers to the Vostok ice core dataset as tabulated on page 9.
Purpose:
Not Available
Supplemental_Information:
REFERENCE: Barring, L., and M. Hulme. 1991. "Filters and approximate confidence intervals for interpreting rainfall anomaly indices", Journal of Climate, Vol. 4, pp. 837-847.
Supplemental_Information:
REFERENCE: Boden, T.A., D.P. Kaiser, R.J. Sepanski, and F.W. Stoss (eds.). 1994. 'Trends '93: A compendium of data on global change',ORNL/CDIAC-65, Carbon Dioxide Information Analysis Center, Oak Ridge National Laboratory, Oak Ridge, TN.
Supplemental_Information:
REFERENCE: Folland, C.K., J.A. Owen, M.N. Ward, and A.W. Colman. 1991. "Prediction of seasonal rainfall in the Sahel region using empirical and dynamical methods", Journal of Forecasting, Vol. 10, pp. 21-56.
Supplemental_Information:
REFERENCE: Hulme, M. 1994. "Century-scale time series of regional rainfall anomalies in Africa", pp. 964-973. In T.A. Boden, D.P. Kaiser, R.J. Sepanski, and F.W. Stoss (eds.), Trends '93: A Compendium of Data on Global Change. ORNL/CDIAC-65. Carbon Dioxide Information Analysis Center, Oak Ridge National Laboratory, Oak Ridge, TN, USA
Supplemental_Information:
REFERENCE: Hulme, M. 1992. "Rainfall changes in Africa: 1931-60 to 1961-90", International Journal of Climatology, Vol. 12, pp. 685-699.
Supplemental_Information:
REFERENCE: Hulme, M., R. Marsh, and P.D. Jones. 1992. "Global changes in a humidity index between 1931-60 and 1961-90", Climate Research, Vol. 2, pp. 1-22.
Supplemental_Information:
REFERENCE: Nicholson, S.E. 1993. "An overview of African rainfall fluctuations of the last decade", Journal of Climate, Vol. 6, pp. 1463-1466.
Supplemental_Information:
REFERENCE: Rowell, D.P., C.K. Folland, K. Maskell, J.A. Owen, and M.N. Ward. 1991. "Causes and predictibility of Sahel rainfall variability", Climate Research Technical Note No. 12, Hadley Centre, Bracknell, U.K.
Supplemental_Information:
REFERENCE: Tyson, P.D., T.G.J. Dyer, and M.N. Mametse. 1975. "Secular changes in South African rainfall: 1880-1972", Quarterly Journal of the Royal Meteorological Society, Vol. 101, pp. 817-833.
Supplemental_Information:
REFERENCE: Tyson, P.D. 1991. "Climatic change in southern Africa: Past and present conditions and possible future scenarios", Climatic Change, Vol. 18, pp. 241-258.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 18840101
Ending_Date: 19911231
Currentness_Reference:Unknown
Status:
Progress: Complete
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Description_of_Geographic_Extent:
Bounding_Coordinates:
West_Bounding_Coordinate: -20.0
East_Bounding_Coordinate: 50.0
North_Bounding_Coordinate: 40.0
South_Bounding_Coordinate: -40.0
Keywords:
Theme:
Theme_Keyword_Thesaurus: GCMD SCIENCE PARAMETERS
Theme_Keyword_Thesaurus: ANCILLARY KEYWORDS
Theme_Keyword_Thesaurus: ISO TOPIC CATEGORY
Theme_Keyword: EARTH SCIENCE > ATMOSPHERE > PRECIPITATION > PRECIPITATION AMOUNT
Theme_Keyword: EARTH SCIENCE > ATMOSPHERE > PRECIPITATION > PRECIPITATION ANOMALIES
Theme_Keyword: EARTH SCIENCE > ATMOSPHERE > PRECIPITATION > RAIN
Theme_Keyword: East Africa
Theme_Keyword: Ftp
Theme_Keyword: Global Warming
Theme_Keyword: Precipitation Anomalies
Theme_Keyword: Sahel
Theme_Keyword: Southwestern Africa
Theme_Keyword: Trends'93
Theme_Keyword: CLIMATOLOGY/METEOROLOGY/ATMOSPHERE
Place:
Place_Keyword_Thesaurus: GCMD
Place_Keyword: CONTINENT > AFRICA > EASTERN AFRICA > KENYA
Place_Keyword: CONTINENT > AFRICA > EASTERN AFRICA > TANZANIA
Place_Keyword: CONTINENT > AFRICA > EASTERN AFRICA > UGANDA
Place_Keyword: CONTINENT > AFRICA
Place_Keyword: CONTINENT > AFRICA > EASTERN AFRICA
Place_Keyword: GEOGRAPHIC REGION > SAHEL
Place_Keyword: CONTINENT > AFRICA > SOUTHERN AFRICA
Access_Constraints: Not Available
Use_Constraints:
Not Available
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: MIKE HULME
Contact_Position: INVESTIGATOR
Contact_Address:
Address_Type: Mailing and Physical Address
Address: Climatic Research Unit
Address: School of Environmental Studies
Address: University of East Anglia
City: Norwich
State_or_Province: Norfolk
Postal_Code: NR4 7TJ
Country: United Kingdom
Contact_Voice_Telephone: +44 1603 593162
Contact_Facsimile_Telephone: +44 1603 507784
Contact_Electronic_Mail_Address: m.hulme@uea.ac.uk
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Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
Not Available
Logical_Consistency_Report:
Not Available
Completeness_Report:
Not Available
Lineage:
Process_Step:
Process_Description:
Not Available
Process_Date: Unknown
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Spatial_Reference_Information:
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Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: DOE/ORNL/ESD/CDIAC > Carbon Dioxide Information Analysis Center, Environmental Sciences Division, Oak Ridge National Laboratory, U. S. Department of Energy
Contact_Person: CARBON DIOXIDE INFORMATION ANALYSIS CENTER
Contact_Position: DATA CENTER CONTACT
Contact_Address:
Address_Type: Mailing and Physical Address
Address: Carbon Dioxide Information Analysis Center (CDIAC)
Address: Oak Ridge National Laboratory
Address: P.O.. Box 2008
City: OAK RIDGE
State_or_Province: TENNESSEE
Postal_Code: 37831-6335
Country: USA
Contact_Facsimile_Telephone: (865) 574-2232
Resource_Description: hulme.968
Resource_Description: hulme.970
Resource_Description: hulme.972
Distribution_Liability:
Not Available
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://cdiac.ornl.gov/
Access_Instructions:
DATA CENTER URL
Digital_Transfer_Option:
Fees: Not Available
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Metadata_Reference_Information:
Metadata_Date:
Metadata_Review_Date: 20011003
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: GENE R. MAJOR
Contact_Position: DIF AUTHOR
Contact_Address:
Address_Type: Mailing and Physical Address
Contact_Electronic_Mail_Address: gsfc-gcmduso@mail.nasa.gov
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
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