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Service Description: Number of heat wave days during August 1976, as calculated using the Warm Spell Duration Index (WSDI). Calculated from daily temperature data, using ECA&D data of station-based indices. These indices were used to produce gridded fields of WSDI by averaging together the available station index values within each 2x2 degree grid cell. To classify as a heat wave there needs to be at least 6 days in a row above the 90th percentile for that day. The reason the maps show values below 6 is that there may be more than one station in a 2 degree grid resolution. If only one of these has a 6 day heat wave, the average of all stations will be less than 6. It is also possible that fewer than 6 days of a heat wave fell in the month of interest.
Map Name: Heatwave_UK_August_1976
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Description: Number of heat wave days during August 1976, as calculated using the Warm Spell Duration Index (WSDI). Calculated from daily temperature data, using ECA&D data of station-based indices. These indices were used to produce gridded fields of WSDI by averaging together the available station index values within each 2x2 degree grid cell. To classify as a heat wave there needs to be at least 6 days in a row above the 90th percentile for that day. The reason the maps show values below 6 is that there may be more than one station in a 2 degree grid resolution. If only one of these has a 6 day heat wave, the average of all stations will be less than 6. It is also possible that fewer than 6 days of a heat wave fell in the month of interest.
Copyright Text: "We acknowledge the data providers in the ECA&D project. Klein Tank, A.M.G. and Coauthors, 2002. Daily dataset of 20th-century surface air temperature and precipitation series for the European Climate Assessment. Int. J. of Climatol., 22, 1441-1453. Data and metadata available at http://www.ecad.eu"
Spatial Reference:
102100
(3857)
Single Fused Map Cache: false
Initial Extent:
XMin: -3754474.800682991
YMin: 5109695.607661288
XMax: 8207254.432413935
YMax: 1.3683530010498166E7
Spatial Reference: 102100
(3857)
Full Extent:
XMin: -6679169.447596415
YMin: 2273030.9269876853
XMax: 1.1131949079327349E7
YMax: 3.0240971958386205E7
Spatial Reference: 102100
(3857)
Units: esriMeters
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Title: Heat wave UK Aug 1976.mxd
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Comments: Number of heat wave days during August 1976, as calculated using the Warm Spell Duration Index (WSDI). Calculated from daily temperature data, using ECA&D data of station-based indices. These indices were used to produce gridded fields of WSDI by averaging together the available station index values within each 2x2 degree grid cell. To classify as a heat wave there needs to be at least 6 days in a row above the 90th percentile for that day. The reason the maps show values below 6 is that there may be more than one station in a 2 degree grid resolution. If only one of these has a 6 day heat wave, the average of all stations will be less than 6. It is also possible that fewer than 6 days of a heat wave fell in the month of interest.
Subject: The UK heat wave of August 1976. WSDI occurrences calculated from ECA&D station data gridded at 2 degree resolution.
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Keywords: Heat wave,WSDI,Warm Spell Duration Index
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Resampling: false
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MaxImageWidth: 4096
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