BGS Hosted Metadata
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
- Citation identifier
- https://catalogue.ceh.ac.uk/id/4a08e6f1-e508-4bb6-b571-b3145dd1588e
- Citation identifier
- doi: / 10.5285/4a08e6f1-e508-4bb6-b571-b3145dd1588e
- Other citation details
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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
- Point of contact
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Organisation name Individual name Electronic mail address Role UK Centre for Ecology & Hydrology Vesuviano, G. Author UK Centre for Ecology & Hydrology Griffin, A. Author UK Centre for Ecology & Hydrology Stewart, E. Author UK Centre for Ecology & Hydrology Cole, S. Author NERC EDS Environmental Information Data Centre Custodian UK Centre for Ecology & Hydrology Vesuviano, G.
Point of contact NERC EDS Environmental Information Data Centre Publisher UK Centre for Ecology & Hydrology Owner
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GEMET - Concepts, version 4.1.3
- Keywords
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- Hydrology
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Kerala
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India
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rainfall
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DDF
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depth-duration-frequency
- Access constraints
- Other restrictions
- Other constraints
- Registration is required to access this data
- Use constraints
- Other restrictions
- Use constraints
- Other restrictions
- Other constraints
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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
- Language
- English
- Character set
- UTF8
- Topic category
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- Climatology, meteorology, atmosphere
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- Unique resource identifier
- WGS 84
- Distribution format
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Name Version ASCII grid
- Distributor contact
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Organisation name Individual name Electronic mail address Role NERC EDS Environmental Information Data Centre
Distributor
- OnLine resource
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Protocol Linkage Name https://data-package.ceh.ac.uk/data/4a08e6f1-e508-4bb6-b571-b3145dd1588e Download the data
- OnLine resource
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Protocol Linkage Name https://data-package.ceh.ac.uk/sd/4a08e6f1-e508-4bb6-b571-b3145dd1588e.zip Supporting information
- Hierarchy level
- Dataset
- Other
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dataset
Conformance result
- Title
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Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services
- Date (Publication)
- 2010-12-08
- Statement
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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.
Metadata
- File identifier
- 4a08e6f1-e508-4bb6-b571-b3145dd1588e XML
- Metadata language
- English
- Character set
- 8859 Part 1
- Hierarchy level
- Dataset
- Hierarchy level name
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dataset
- Date stamp
- 2025-11-13T16:16:45
- Metadata standard name
- UK GEMINI
- Metadata standard version
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2.3
- Metadata author
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Organisation name Individual name Electronic mail address Role NERC EDS Environmental Information Data Centre Point of contact
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