{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:16:50.267897", "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": "2022-Jan-17_to_2022-Jan-20_88.0_21.5"}, "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": 2022010000713}, "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 17 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 20 2022"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "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": 186035.0604333632}, "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"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["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": 21.5}, "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": 88.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "88.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 85.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 91.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 18.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 21.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[85.75, 20.15], [85.82, 20.18], [85.97, 20.53], [86.32, 20.68], [86.35, 20.75], [86.25, 21.0], [86.35, 21.25], [86.25, 21.5], [86.47, 22.03], [87.0, 22.25], [87.25, 22.15], [87.5, 22.25], [87.75, 22.15], [88.0, 22.25], [88.25, 22.15], [88.5, 22.25], [88.75, 22.15], [89.0, 22.25], [89.25, 22.15], [89.5, 22.25], [89.75, 22.15], [90.0, 22.25], [90.53, 22.03], [90.68, 21.68], [91.03, 21.53], [91.18, 21.18], [91.53, 21.03], [91.75, 20.5], [91.53, 19.97], [91.18, 19.82], [91.15, 19.75], [91.25, 19.5], [91.03, 18.97], [90.68, 18.82], [90.53, 18.47], [90.0, 18.25], [89.75, 18.35], [89.68, 18.32], [89.53, 17.97], [89.18, 17.82], [89.03, 17.47], [88.5, 17.25], [88.25, 17.35], [88.0, 17.25], [87.75, 17.35], [87.5, 17.25], [86.97, 17.47], [86.82, 17.82], [86.75, 17.85], [86.5, 17.75], [86.25, 17.85], [86.0, 17.75], [85.47, 17.97], [85.32, 18.32], [84.97, 18.47], [84.75, 19.0], [84.85, 19.25], [84.75, 19.5], [84.97, 20.03], [85.5, 20.25], [85.75, 20.15]]]]}}, "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": {"2022-01-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[84.75, 19.5], [84.97, 20.03], [85.5, 20.25], [85.75, 20.15], [85.82, 20.18], [85.97, 20.53], [86.32, 20.68], [86.35, 20.75], [86.25, 21.0], [86.35, 21.25], [86.25, 21.5], [86.47, 22.03], [87.0, 22.25], [87.25, 22.15], [87.5, 22.25], [87.75, 22.15], [88.0, 22.25], [88.25, 22.15], [88.5, 22.25], [88.75, 22.15], [89.0, 22.25], [89.25, 22.15], [89.5, 22.25], [89.75, 22.15], [90.0, 22.25], [90.53, 22.03], [90.75, 21.5], [90.65, 21.25], [90.68, 21.18], [91.03, 21.03], [91.25, 20.5], [91.15, 20.25], [91.25, 20.0], [91.03, 19.47], [90.68, 19.32], [90.65, 19.25], [90.75, 19.0], [90.53, 18.47], [90.0, 18.25], [89.75, 18.35], [89.68, 18.32], [89.53, 17.97], [89.18, 17.82], [89.03, 17.47], [88.5, 17.25], [88.25, 17.35], [88.0, 17.25], [87.75, 17.35], [87.5, 17.25], [86.97, 17.47], [86.82, 17.82], [86.75, 17.85], [86.5, 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