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Service Description: The 85th percentile is a 24-hour rainfall total. It represents a value such that 85% of the observed 24-hour rainfall totals will be less that that value.
These isolines were approximated by an empirical constant times the average annual rainfall. The average annual rainfall isolines were converted to a grid surface, multiplied by a factor of 0.09, and the new grid was exported to isolines. The resulting isoline layer is the existing 85th percentile isopluvial. TOPOGRID command to generate a grid surface from the 2yr 24hr contours from the NOAA rainfall atlas.
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MaxRecordCount: 2000
Supported Query Formats: JSON
Supports Query Data Elements: true
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Service Item Id: 9e18d2f5a62d4dc6bea1ab192539c12a
Copyright Text: Fred McCamic, County of San Diego, Department of Public Works, Cartographic Services. Rand Allan, County of San Diego, Department of Public Works, Flood Control Engineering.
Spatial Reference:
102646
(2230)
Initial Extent:
XMin: 6129352.001737259
YMin: 1759275.2805977531
XMax: 6636458.463769026
YMax: 2147400.771832087
Spatial Reference: 102646
(2230)
Full Extent:
XMin: 6152402.295465976
YMin: 1776917.348381132
XMax: 6613408.170040309
YMax: 2129758.704048708
Spatial Reference: 102646
(2230)
Units: esriFeet
Document Info:
Title: \\ustlsncsd0004\PA2005config\arcgisserver\directories\arcgissystem\arcgisinput\sdep_warehouse\HYD_85TH_PERCENT_ISOPLUVIALS.MapServer\extracted\p20\a5883ff3814ce4225a3db1c617bb5e407.mxd
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Keywords: County Hydrology Manual,isopluvials,isolines,rainfall,rainfall totals,24-hour,85th percentile
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Supports ApplyEdits With Global Ids: false
Support True Curves : true
Only Allow TrueCurve Updates By TrueCurveClients : true
Supports Return Service Edits Option : true
Supports Dynamic Layers: false
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