DATASET TITLE: NDP-003/R1: GLOBAL SURFACE AIR TEMPERATURE                       
                           VARIATIONS: 1851 - 1984                              
                                                                                
CONTRIBUTORS:  P.D. JONES                                                       
               S.C.B. RAPER                                                     
               T.M.L. WIGLEY                                                    
               P.M. KELLY                                                       
               CLIMATIC RESEARCH UNIT                                           
               UNIVERSITY OF EAST ANGLIA                                        
               NORWICH, UNITED KINGDOM                                          
                                                                                
               R.S BRADLEY                                                      
               DEPARTMENT OF GEOGRAPHY & GEOLOGY                                
               UNIVERSITY OF MASSACHUSETTS                                      
               AMHERST, MASSACHUSETTS                                           
                                                                                
               H.F. DIAZ                                                        
               NOAA/ERL                                                         
               BOULDER, COLORADO                                                
                                                                                
SCOPE OF THE DATA: MONTHLY MEAN SURFACE AIR TEMPERATURE VARIATIONS              
FOR THE NORTHERN (1851-1984) AND SOUTHERN (1858-1984) HEMISPHERES               
ARE PRESENTED.  THESE VARIATIONS ARE BASED ON GRID POINT TEMPERATURE            
ESTIMATES THAT HAVE BEEN MADE BY INTERPOLATING ONTO A 5 DEGREE LATITUDE         
BY 10 DEGREE LONGITUDE GRID FOR EACH MONTH OF THE 134 YEAR RECORD.  THE         
GRID POINT TEMPERATURE ESTIMATES ARE DERIVED FROM LAND-BASED                    
METEOROLOGICAL STATION DATA AND FIXED-POSITION WEATHER SHIP DATA. A             
UNIQUE FEATURE OF THESE DATA IS THE FACT THAT STATION INHOMOGENEITIES           
HAVE BEEN ANALYZED AND ONLY RELIABLE OR CORRECTED STATION DATA HAVE             
BEEN USED IN ESTIMATING THE MONTHLY ANOMALIES.                                  
                                                                                
DATA FORMAT: SIX DOS ASCII TEXT FILES ARE PROVIDED IN THIS SUBDIRECTORY         
ON THE CD-ROM INCLUDING THIS DESCRIPTIVE FILE (NDP003R1.TXT),                   
A FORTRAN (NDP003R1.FOR) AND SAS (NDP003R1.SAS) RETRIEVAL CODE TO READ          
AND PRINT ANY OF THREE DATA FILES. THE 3 DATA FILES CONTAIN MONTHLY AND         
ANNUAL TEMPERATURE ANOMALIES FOR THE NORTHERN AND SOUTHERN HEMISPHERES.         
THE DATA FILES DIFFER IN THEIR SPATIAL AND TEMPORAL COVERAGE.  THE FILE NAMES,  
SPATIAL COVERAGE, AND PERIODS OF RECORD ARE AS FOLLOWS:                         
                                                                                
                                                 SPATIAL                        
FILE NAME               CONTENTS                 COVERAGE           RECORD      
                                                                                
NDP003R1.NH -- NORTHERN HEMISPHERE VARIATIONS  2.5 S - 90 N       1851-1984     
                                                                                
NDP003R1.SH -- SOUTHERN HEMISPHERE VARIATIONS  2.5 S - 62.5 S     1858-1984     
                                                                                
NDP003R1.ANT - SOUTHERN HEMISPHERE VARIATIONS  2.5 S - 90.0 S     1957-1984     
               USING DATA FROM ANTARCTICA                                       
                                                                                
ALL MONTHLY AND ANNUAL TEMPERATURE ANOMALIES ARE EXPRESSED IN                   
DEGREES CELSIUS AND ARE CALCULATED WITH RESPECT TO A 1951-1970 REFERENCE        
PERIOD MEAN.  EACH DATA FILE CONTAIN THREE VARIABLES: YEAR (IYEAR),             
MONTHLY ANOMALIES (ANOM), AND ANNUAL ANOMALIES (ANN).  THE FILES ARE            
FORMATTED AS:                                                                   
                  READ (UNIT,10) IYEAR(I),(ANOM(I),I=1,12),ANN                  
      10          FORMAT(I4,1X,12F5.2,F5.2)                                     
                                                                                
                                                                                
                        REFERENCES                                              
                                                                                
JONES, P.D., S.C.B. RAPER, R.S. BRADLEY, H.F. DIAZ, P.M. KELLY, AND             
     T.M.L. WIGLEY. 1986. NORTHERN HEMISPHERE SURFACE AIR TEMPERATURE           
     VARIATIONS: 1851-1984. JOURNAL OF CLIMATE AND APPLIED                      
     METEOROLOGY 25(2): 161-179.                                                
                                                                                
JONES, P.D., S.C.B. RAPER, AND T.M.L. WIGLEY. 1986. SOUTHERN HEMISPHERE         
     SURFACE AIR TEMPERATURE VARIATIONS: 1851-1984. JOURNAL OF CLIMATE          
     AND APPLIED METEOROLOGY 25(9): 1213-1230.