Gridded rainfall depth-duration-frequency (DDF) estimates for the state of Kerala, India, 1979-2020
This data represents twenty-four modelled rainfall depth estimates by GridASCII files across the state of Kerala, India, for four durations (1, 6, 24 and 192 hours) and six return periods (2, 5, 10, 25, 50 and 100 years). The estimates were produced using a similar procedure to the Flood Estimation Handbook statistical method for flood frequency estimation: separately for each duration, the estimated median annual maximum (AMAX) rainfall was used as a standardizing “index” value and the estimated L-moments of the AMAX series were used to fit a generalized logistic distribution “growth curve”. The data are in units of mm at a spatial resolution of 0.12 degrees. Full details about this dataset can be found at
https://doi.org/10.5285/4a08e6f1-e508-4bb6-b571-b3145dd1588e
Simple
- Date (Publication)
- 2022-11-22
- Identifier
- doi: / 10.5285/4a08e6f1-e508-4bb6-b571-b3145dd1588e
- Other citation details
- Vesuviano, G., Griffin, A., Stewart, E., Cole, S. (2022). Gridded rainfall depth-duration-frequency (DDF) estimates for the state of Kerala, India, 1979-2020. NERC EDS Environmental Information Data Centre 10.5285/4a08e6f1-e508-4bb6-b571-b3145dd1588e
- Access constraints
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- Registration is required to access this data
- Use constraints
- otherRestrictions Other restrictions
- Use constraints
- otherRestrictions Other restrictions
- Other constraints
- If you reuse this data, you should cite: Vesuviano, G., Griffin, A., Stewart, E., Cole, S. (2022). Gridded rainfall depth-duration-frequency (DDF) estimates for the state of Kerala, India, 1979-2020. NERC EDS Environmental Information Data Centre https://doi.org/10.5285/4a08e6f1-e508-4bb6-b571-b3145dd1588e
- Spatial representation type
- grid Grid
- Metadata language
- EnglishEnglish
- Character set
- utf8 UTF8
- Topic category
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- Climatology, meteorology, atmosphere
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S
E
W
- Unique resource identifier
- WGS 84
- Distribution format
-
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ASCII grid
()
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ASCII grid
()
- OnLine resource
-
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Supporting information
Supporting information available to assist in re-use of this dataset
- Hierarchy level
- dataset Dataset
- Other
- dataset
Conformance result
- Date (Publication)
- 2010-12-08
- Statement
- 1, 6, 24 and 192-hour annual maximum rainfalls were extracted from the gridded Indian Monsoon Data Assimilation and Analysis (IMDAA) hourly rainfall dataset for each year of 1979-2020 inclusive, for each grid cell in the state of Kerala, India. At each point, the median, and L-moments of the 42 annual maxima were calculated separately for each duration. At each location, linear regressions were created for the median using longitude, latitude, duration and mean annual rainfall. Linear regressions were created for the first two L-moments using these descriptors variables plus altitude and modelled median of annual maxima. The generalized logistic distribution was then used with the modelled median and L-moment ratios at each site to estimate the rainfall depths associated with specified durations and return periods.
- File identifier
- 4a08e6f1-e508-4bb6-b571-b3145dd1588e XML
- Metadata language
- EnglishEnglish
- Character set
- ISO/IEC 8859-1 (also known as Latin 1) 8859 Part 1
- Hierarchy level
- dataset Dataset
- Hierarchy level name
- dataset
- Date stamp
- 2025-03-21T09:34:45
- Metadata standard name
- UK GEMINI
- Metadata standard version
- 2.3
Point of contact
NERC EDS Environmental Information Data Centre
Lancaster Environment Centre, Library Avenue, Bailrigg
,
Lancaster
,
LA1 4AP
,
UK
https://eidc.ac.uk/
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Spatial extent
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W
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NERC Data Catalogue Service