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Daily Surface Temperature Benchmarks data download - version 1, October 2014

If download speeds or limits are an issue, or if you require individual stations in ASCII please contact us and we will investigate alternative solutions.

Files are compressed in two forms .tar (use tar -xzf filename to expand) or .zip.

Files are ASCII format identical to that of GHCN-Daily. Each ".dly" file contains data for one station. The name of the file corresponds to a station's identification code. For example, "WY000000030.dly" contains the data for the station with the identification code WY000000030 with the name and location given in the "_stnlist.txt" file.

Each record in a ".dly" file contains one month of daily data. The variables on each line include the following:
------------------------------
Variable   Columns Type
------------------------------
ID           1-11        Character
YEAR       12-15      Integer
MONTH     16-17      Integer
ELEMENT 18-21      Character
VALUE1    22-26      Integer
SPACE     27-29      Character
VALUE2    30-34      Integer
SPACE     35-37      Character
. . .
. . .
. . .
VALUE31 262-266   Integer
SPACE     267-269   Character
------------------------------
These variables have the following definitions:

ID: is the station identification code. Please see "_stnlist.txt" for a complete list of stations and their metadata
YEAR: is the year of the record from 1970 to 2011
MONTH: is the month of the record
ELEMENT: is the element type - in this case, only TMEN (mean daily temperature) is available. This is equivalent to (TMAX+TMIN)/2
VALUE1: is the value on the first day of the month in tenths of a degree Centigrade (missing = -9999)
SPACE: three white space characters that contained quality flags in GHCND
VALUE2: is the value on the second day of the month in tenths of a degree Centigrade
SPACE: three white space characters that contained quality flags in GHCND

... and so on until the 31st day of the month. Note: If the month has less than 31 days, then the remaining variables are set to missing (e.g., for April, VALUE31 = -9999).

Each record in a "_stnlist.txt" file contains the metadata for one stations. The variables on each line include the following:
------------------------------
Variable       Columns   Type
------------------------------
ID               1-11         Character
LATITUDE     13-20       Real
LONGITUDE 22-30       Real
ELEVATION   32-37       Real
------------------------------
These variables have the following definitions:

ID: is the station identification code. Note that the first two characters denote the Region (WY, SE, NE, NW) and the remaining nine characters contain the actual station ID
LATITUDE: is latitude of the station (in decimal degrees)
LONGITUDE: is the longitude of the station (in decimal degrees)
ELEVATION: is the elevation of the station (in meters, missing = -999.9)

Also available now are the breakpoint locations for each of the regions. Each of these .txt files contains information on the station the breakpoint occurs in; the location of the breakpoints, both as a time index and a year and month; the inhomogeneity type (SC = shelter change, SR = station relocation, UR = urbanisation); the method of inhomogeneity addition (CO = constant offset, EV = explanatory variable perturbation); the length in days and the mean and median relative sizes of the inhomogeneity, defined as the difference in averages between the homogeneous subperiod before the inhomogeneity and the homogeneous subperiod after it. For more information on any of these aspects please contact us.

Region: Wyoming, USA	Description	Data files	Size (MB)

Wyoming World 1	75 stations	Wyoming_world_1.tar Wyoming_world_1.zip WY_world1_clean.tar WY_world1_clean.zip WY_world1_IH_locations.txt	2.0M, 1.8M, 4.1M, 0M, 0M
Wyoming World 2	158 stations	Wyoming_world_2.tar Wyoming_world_2.zip WY_world2_clean.tar WY_world2_clean.zip WY_world2_IH_locations.txt	4.2M, 3.7M, 4.3M, 0M, 0M
Wyoming World 3	158 stations	Wyoming_world_3.tar Wyoming_world_3.zip WY_world3_clean.tar WY_world3_clean.zip WY_world3_IH_locations.txt	4.2M, 3.7M, 4.3M, 0M, 0M
Wyoming World 4	75 stations	Wyoming_world_4.tar Wyoming_world_4.zip WY_world4_clean.tar WY_world4_clean.zip WY_world4_IH_locations.txt	2.0M, 1.7M, 2.1, 0M, 0M

Region: South East USA	Description	Data files	Size (MB)

SE USA World 1	153 stations	SE_world_1.tar SE_world_1.zip SE_world1_clean.tar SE_world1_clean.zip SE_world1_IH_locations.txt	3.7M, 3.2M, 3.8M, 0M, 0M
SE USA World 2	210 stations	SE_world_2.tar SE_world_2.zip SE_world2_clean.tar SE_world2_clean.zip SE_world2_IH_locations.txt	5.1M, 4.4M, 5.2M, 0M, 0M
SE USA World 3	210 stations	SE_world_3.tar SE_world_3.zip SE_world3_clean.tar SE_world3_clean.zip SE_world3_IH_locations.txt	5.1M, 4.4M, 5.2M, 0M, 0M

Region: North East USA	Description	Data files	Size (MB)

NE USA World 1	146 stations	NE_world_1.tar NE_world_1.zip NE_world1_clean.tar NE_world1_clean.zip NE_world1_IH_locations.txt	3.9M, 3.4M, 4.0M, 0M, 0M
NE USA World 2	207 stations	NE_world_2.tar NE_world_2.zip NE_world2_clean.tar NE_world2_clean.zip NE_world2_IH_locations.txt	5.5M, 4.8M, 5.7M, 0M, 0M
NE USA World 3	207 stations	NE_world_3.tar NE_world_3.zip NE_world3_clean.tar NE_world3_clean.zip NE_world3_IH_locations.txt	5.5M, 4.8M, 5.7M, 0M, 0M

Region: South West USA	Description	Data files	Size (MB)

SW USA World 1	151 stations	SW_world_1.tar SW_world_1.zip SW_world1_clean.tar SW_world1_clean.zip SW_world1_IH_locations.txt	3.7M, 3.2M, 3.8M, 0M, 0M
SW USA World 2	222 stations	SW_world_2.tar SW_world_2.zip SW_world2_clean.tar SW_world2_clean.zip SW_world2_IH_locations.txt	5.4M, 4.6M, 5.6M, 0M, 0M
SW USA World 3	222 stations	SW_world_3.tar SW_world_3.zip SW_world3_clean.tar SW_world3_clean.zip SW_world3_IH_locations.txt	5.5M, 4.6M, 5.6M, 0M

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