{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:09:44.133260", "data_source": "ERA5", "website": "http://wexa.jamstec.go.jp", "Author": "Patrick Martineau"}, "event_id": {"name": "Event ID", "description": "A unique identifier based on: beginning_date, end_date, longitude, and latitude", "value": "2026-Jan-07_to_2026-Jan-13_79.5_10.0"}, "event_label": {"name": "Event label", "description": "Integer-valued grid identifier that uniquely labels each detected extreme event in space and time, consistent with the corresponding labels stored in the NetCDF dataset.", "value": 2026010000286}, "status": {"name": "Status", "description": "An ongoing event denotes an event that lasts up to the latest data available. These events are subject to change as newer data is added.", "value": false}, "start_date": {"name": "Start date", "description": "First date on which grid points are under the influence of an event", "value": "January 07 2026"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 13 2026"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 7}, "figures_available": {"name": "Figures available", "description": "True if figures were pre-generated for this event", "value": true}, "detection_var": {"name": "Detection variable", "description": "Variable used for the detection scheme", "value": "t2m"}, "event_type": {"name": "Event type", "description": "Type of the event detected", "value": "Cold spell"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 66821.90081556256}, "countries_affected": {"name": "Countries affected", "description": "The ArcGIS geocoding API (https://developers.arcgis.com/rest/geocode/) is used to obtain a list of all the countries affected by an event during its lifetime.", "value": ["India", "Sri Lanka"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Asia", "Asia"]}, "oceans_affected": {"name": "Ocean basins affected", "description": "The ArcGIS geocoding API (https://developers.arcgis.com/rest/geocode/) is used to obtain a list of all the ocean basins affected by an event during its lifetime.", "value": []}, "center_lat": {"name": "Center latitude", "description": "Latitude of the maximum time-integrated standardized t2m anomalies. Only t2m of the same polarity as the events are considered (positive T2m for a HW, for instance). The centre is thus representative of both the severity and persistence of anomalies.", "value": 10.0}, "center_lon": {"name": "Center longitude", "description": "Longitude of the maximum time-integrated standardized t2m anomalies. Only t2m of the same polarity as the events are considered (positive T2m for a HW, for instance). The centre is thus representative of both the severity and persistence of anomalies.", "value": 79.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "79.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 77.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 80.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 9.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 12.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[76.97, 9.47], [76.75, 10.0], [76.97, 10.53], [77.32, 10.68], [77.35, 10.75], [77.32, 10.82], [76.97, 10.97], [76.75, 11.5], [76.97, 12.03], [77.32, 12.18], [77.47, 12.53], [78.0, 12.75], [78.53, 12.53], [78.75, 12.0], [78.65, 11.75], [78.68, 11.68], [78.75, 11.65], [78.82, 11.68], [78.97, 12.03], [79.32, 12.18], [79.35, 12.25], [79.25, 12.5], [79.47, 13.03], [80.0, 13.25], [80.53, 13.03], [80.75, 12.5], [80.65, 12.25], [80.75, 12.0], [80.53, 11.47], [80.18, 11.32], [80.15, 11.25], [80.25, 11.0], [80.15, 10.75], [80.25, 10.5], [80.15, 10.25], [80.18, 10.18], [80.53, 10.03], [80.75, 9.5], [80.53, 8.97], [80.0, 8.75], [79.75, 8.85], [79.68, 8.82], [79.53, 8.47], [79.0, 8.25], [78.47, 8.47], [78.25, 9.0], [78.35, 9.25], [78.32, 9.32], [78.0, 9.46], [77.5, 9.25], [76.97, 9.47]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.Asia", "Bay-of-Bengal"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2026-01-07T11:30:00.000000000": {"type": "MultiPolygon", 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