BITMAP: Tracks of western disturbances transiting over Pakistan and north India in ERA-Interim reanalysis data (1979-2015)
This dataset contains tracks generated using a bespoke tracking algorithm developed within the BITMAP (Better understanding of Interregional Teleconnections for prediction in the Monsoon And Poles) project, identifying and linking upper-tropospheric vortices (described in Hunt et al, 2018, QJRMS - see linked documentation), using data derived from the ERA-Interim reanalysis data. Similar datasets were produced using various model output from the WCRP CMIP5 programme, available within the parent dataset collection.
Western disturbances (WDs) are upper-level vortices that can significantly impact the weather over Pakistan and north India. This is a catalogue of the tracks of WDs passing through the region (specifically 20-36.5N, 60-80E) on the 450-300 hPa. This differs from those tracks from the CMIP5 data which were carried out on the 500 hPa layer. See linked documentation for details of the algorithms used.
BITMAP was an Indo-UK-German project (NERC grant award NE/P006795/1) to develop better understanding of processes linking the Arctic and Asian monsoon, leading to better prospects for prediction on short, seasonal and decadal scales in both regions. Recent work had suggested that the pole-to-equator temperature difference is an essential ingredient driving variations in the monsoon. For further details on the project itself see the linked Project record.
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Identification info
- Metadata Language
- English (en)
- Dataset Reference Date ()
- 2019-02-05T12:12:24
- Dataset Reference Date ()
- 2019-02-05T12:12:24
- Identifier
- Centre for Environmental Data Analysis (CEDA) / 233cf64c54e946e0bb691a07970ec245
- Identifier
- doi / http://dx.doi.org/10.5285/233cf64c54e946e0bb691a07970ec245
- Maintenance and update frequency
- notPlanned
- Update scope
- dataset
- Keywords
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- BITMAP
- India
- Western disturbances
- Vortices
- GEMET - INSPIRE themes, version 1.0 ()
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- atmospheric conditions
- Limitations on Public Access
- otherRestrictions
- Other constraints
- Access to these data is available to any registered CEDA user. Please Login or Register for an account to gain access.
- Use constraints
- otherRestrictions
- Spatial representation type
- grid
- Topic category
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- Climatology, meteorology, atmosphere
- Begin date
- 1979-01-01T00:00:00
- End date
- 2015-12-31T23:59:59
- Code
- WGS 84
Distribution Information
- Data format
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Data are BADC-CSV formatted.
()
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Data are BADC-CSV formatted.
()
- Resource Locator
-
CEDA Data Catalogue Page
Detail and access information for the resource
- Resource Locator
-
DOWNLOAD
Download Data
- Resource Locator
-
CEDA Data Catalogue Page
Detail and access information for the resource
- Resource Locator
-
DOWNLOAD
Download Data
- Quality Scope
- dataset
Report
- Dataset Reference Date ()
- 2010-12-08
- Statement
- Data produced and prepared for archiving by the authors before supplying to the Centre of Environmental Data Analysis (CEDA) for use by the research community.
Metadata
- File identifier
- 233cf64c54e946e0bb691a07970ec245 XML
- Metadata Language
- English (en)
- Character set
- 8-bit variable size UCS Transfer Format, based on ISO/IEC 10646
- Parent identifier
- BITMAP: Tracks of western disturbances (1979-2015) b1f266c25cf2445f8b87d874f6ac830a
- Resource type
- dataset
- Metadata Date
- 2024-03-25T00:57:57
- Metadata standard name
- UK GEMINI
- Metadata standard version
- 2.3