{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:04:15.750641", "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": "2025-Mar-26_to_2025-Apr-01_82.0_18.5"}, "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": 2025030002468}, "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": "March 26 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 01 2025"}, "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": "Heat wave"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 335724.2351416198}, "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": 18.5}, "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": 82.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "82.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 78.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 87.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 12.5}, "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": [[[[77.75, 15.5], [77.97, 16.03], [78.5, 16.25], [78.8, 16.13], [78.97, 16.53], [79.5, 16.75], [79.8, 16.63], [79.97, 17.03], [80.32, 17.18], [80.37, 17.3], [80.25, 17.35], [80.0, 17.25], [79.47, 17.47], [79.25, 18.0], [79.46, 18.5], [79.25, 19.0], [79.47, 19.53], [79.82, 19.68], [79.85, 19.75], [79.82, 19.82], [79.47, 19.97], [79.25, 20.5], [79.35, 20.75], [79.25, 21.0], [79.47, 21.53], [80.0, 21.75], [80.53, 21.53], [80.68, 21.18], [80.75, 21.15], [81.0, 21.25], [81.5, 21.04], [82.0, 21.25], [82.5, 21.04], [83.0, 21.25], [83.53, 21.03], [83.68, 20.68], [84.03, 20.53], [84.25, 20.0], [84.13, 19.7], [84.25, 19.65], [84.5, 19.75], [84.75, 19.65], [84.82, 19.68], [84.85, 19.75], [84.75, 20.0], [84.97, 20.53], [85.38, 20.7], [85.35, 20.76], [85.32, 20.82], [84.97, 20.97], [84.75, 21.5], [84.97, 22.03], [85.5, 22.25], [86.03, 22.03], [86.18, 21.68], [86.25, 21.65], [86.5, 21.75], [87.03, 21.53], [87.18, 21.18], [87.53, 21.03], [87.75, 20.5], [87.53, 19.97], [87.18, 19.82], [87.03, 19.47], [86.68, 19.32], [86.65, 19.25], [86.75, 19.0], [86.53, 18.47], [86.18, 18.32], [86.03, 17.97], [85.68, 17.82], [85.65, 17.75], [85.75, 17.5], [85.53, 16.97], [85.18, 16.82], [85.03, 16.47], [84.68, 16.32], [84.53, 15.97], [84.0, 15.75], [83.75, 15.85], [83.68, 15.82], [83.53, 15.47], [83.18, 15.32], [83.03, 14.97], [82.5, 14.75], [82.25, 14.85], [82.0, 14.75], [81.75, 14.85], [81.5, 14.75], [81.2, 14.87], [81.15, 14.75], [81.25, 14.5], [81.03, 13.97], [80.68, 13.82], [80.53, 13.47], [80.18, 13.32], [80.15, 13.25], [80.18, 13.18], [80.53, 13.03], [80.75, 12.5], [80.53, 11.97], [80.0, 11.75], [79.47, 11.97], [79.32, 12.32], [79.25, 12.35], [79.0, 12.25], [78.75, 12.35], [78.5, 12.25], [77.97, 12.47], [77.75, 13.0], [77.85, 13.25], [77.75, 13.5], [77.85, 13.75], [77.75, 14.0], [77.85, 14.25], [77.75, 14.5], [77.85, 14.75], [77.75, 15.0], [77.85, 15.25], [77.75, 15.5]]]]}}, "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": {"2025-03-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[80.25, 17.0], [80.47, 17.53], [81.0, 17.75], [81.53, 17.53], [81.68, 17.18], [82.03, 17.03], [82.25, 16.5], [82.03, 15.97], [81.5, 15.75], [80.97, 15.97], [80.82, 16.32], [80.47, 16.47], [80.25, 17.0]]], [[[84.5, 19.25], [85.03, 19.03], [85.25, 18.5], [85.15, 18.25], [85.25, 18.0], [85.03, 17.47], [84.5, 17.25], [83.97, 17.47], [83.75, 18.0], [83.85, 18.25], [83.75, 18.5], [83.97, 19.03], [84.5, 19.25]]], [[[80.75, 18.5], [80.97, 19.03], [81.5, 19.25], [81.75, 19.15], [82.0, 19.25], [82.53, 19.03], [82.75, 18.5], [82.53, 17.97], [82.0, 17.75], [81.75, 17.85], [81.5, 17.75], [80.97, 17.97], [80.75, 18.5]]]]}, "2025-03-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[77.75, 13.5], [77.85, 13.75], [77.75, 14.0], [77.85, 14.25], [77.75, 14.5], [77.85, 14.75], [77.75, 15.0], [77.97, 15.53], [78.5, 15.75], [78.75, 15.65], [78.82, 15.68], [78.85, 15.75], [78.75, 16.0], [78.97, 16.53], [79.5, 16.75], [79.8, 16.63], [79.97, 17.03], [80.32, 17.18], [80.47, 17.53], [80.82, 17.68], [80.88, 17.8], [80.75, 17.85], [80.5, 17.75], [79.97, 17.97], [79.82, 18.32], [79.47, 18.47], [79.25, 19.0], [79.47, 19.53], [79.82, 19.68], [79.85, 19.75], [79.75, 20.0], [79.97, 20.53], [80.5, 20.75], [81.03, 20.53], [81.25, 20.0], [81.15, 19.75], [81.25, 19.5], [81.13, 19.2], [81.25, 19.15], [81.32, 19.18], [81.47, 19.53], [82.0, 19.75], [82.53, 19.53], [82.75, 19.0], [82.65, 18.75], [82.7, 18.63], [82.82, 18.68], [82.97, 19.03], [83.5, 19.25], [83.75, 19.15], [83.82, 19.18], [83.97, 19.53], [84.5, 19.75], [84.75, 19.65], [84.82, 19.68], [84.85, 19.75], [84.75, 20.0], [84.97, 20.53], [85.5, 20.75], [84.97, 20.97], [84.75, 21.5], [84.97, 22.03], [85.5, 22.25], [86.03, 22.03], [86.2, 21.63], [86.5, 21.75], [87.03, 21.53], [87.18, 21.18], [87.53, 21.03], [87.75, 20.5], [87.53, 19.97], [87.18, 19.82], [87.03, 19.47], [86.68, 19.32], [86.65, 19.25], [86.75, 19.0], [86.53, 18.47], [86.18, 18.32], [86.03, 17.97], [85.68, 17.82], [85.65, 17.75], [85.75, 17.5], [85.53, 16.97], [85.18, 16.82], [85.03, 16.47], [84.68, 16.32], [84.53, 15.97], [84.0, 15.75], [83.75, 15.85], [83.68, 15.82], [83.53, 15.47], [83.18, 15.32], [83.03, 14.97], [82.5, 14.75], [82.25, 14.85], [82.0, 14.75], [81.75, 14.85], [81.5, 14.75], [81.2, 14.87], [81.15, 14.75], [81.25, 14.5], [81.03, 13.97], [80.68, 13.82], [80.53, 13.47], [80.18, 13.32], [80.15, 13.25], [80.18, 13.18], [80.53, 13.03], [80.75, 12.5], [80.53, 11.97], [80.0, 11.75], [79.47, 11.97], [79.32, 12.32], [79.25, 12.35], [79.0, 12.25], [78.75, 12.35], [78.5, 12.25], [77.97, 12.47], [77.75, 13.0], [77.85, 13.25], [77.75, 13.5]], [[85.75, 20.65], [85.82, 20.68], [85.85, 20.75], [85.8, 20.88], [85.5, 20.75], [85.75, 20.65]]]]}, "2025-03-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[77.75, 13.5], [77.85, 13.75], [77.75, 14.0], [77.85, 14.25], [77.75, 14.5], [77.85, 14.75], [77.75, 15.0], [77.85, 15.25], [77.75, 15.5], [77.97, 16.03], [78.5, 16.25], [78.8, 16.13], [78.97, 16.53], [79.5, 16.75], [79.8, 16.63], [79.97, 17.03], [80.32, 17.18], [80.38, 17.3], [80.25, 17.35], [80.0, 17.25], [79.47, 17.47], [79.25, 18.0], [79.46, 18.5], [79.25, 19.0], [79.47, 19.53], [79.82, 19.68], [79.85, 19.75], [79.82, 19.82], [79.47, 19.97], [79.25, 20.5], [79.35, 20.75], [79.25, 21.0], [79.47, 21.53], [80.0, 21.75], [80.53, 21.53], [80.68, 21.18], [80.75, 21.15], [81.0, 21.25], [81.5, 21.04], [82.0, 21.25], [82.53, 21.03], [82.68, 20.68], [83.03, 20.53], [83.25, 20.0], [83.15, 19.75], [83.25, 19.5], [83.07, 19.07], [83.32, 19.18], [83.47, 19.53], [84.0, 19.75], [84.25, 19.65], [84.5, 19.75], [84.75, 19.65], [84.82, 19.68], [84.85, 19.75], [84.75, 20.0], [84.97, 20.53], [85.38, 20.7], [85.32, 20.82], [84.97, 20.97], [84.75, 21.5], [84.97, 22.03], [85.5, 22.25], [86.03, 22.03], [86.18, 21.68], [86.25, 21.65], [86.5, 21.75], [87.03, 21.53], [87.18, 21.18], [87.53, 21.03], [87.75, 20.5], [87.53, 19.97], [87.18, 19.82], [87.03, 19.47], [86.68, 19.32], [86.65, 19.25], [86.75, 19.0], [86.53, 18.47], [86.18, 18.32], [86.03, 17.97], [85.68, 17.82], [85.65, 17.75], [85.75, 17.5], [85.53, 16.97], [85.18, 16.82], [85.03, 16.47], [84.68, 16.32], [84.53, 15.97], [84.0, 15.75], [83.75, 15.85], [83.68, 15.82], [83.53, 15.47], [83.18, 15.32], [83.03, 14.97], [82.5, 14.75], [82.25, 14.85], [82.0, 14.75], [81.75, 14.85], [81.5, 14.75], [81.2, 14.87], [81.15, 14.75], [81.25, 14.5], [81.03, 13.97], [80.68, 13.82], [80.53, 13.47], [80.18, 13.32], [80.15, 13.25], [80.18, 13.18], [80.53, 13.03], [80.75, 12.5], [80.53, 11.97], [80.0, 11.75], [79.47, 11.97], [79.32, 12.32], [79.25, 12.35], [79.0, 12.25], [78.75, 12.35], [78.5, 12.25], [77.97, 12.47], [77.75, 13.0], [77.85, 13.25], [77.75, 13.5]], [[82.75, 18.65], [82.82, 18.68], [82.93, 18.93], [82.68, 18.82], [82.65, 18.75], [82.68, 18.68], [82.75, 18.65]]]]}, "2025-03-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[77.75, 13.5], [77.85, 13.75], [77.75, 14.0], [77.85, 14.25], [77.75, 14.5], [77.85, 14.75], [77.75, 15.0], [77.85, 15.25], [77.75, 15.5], [77.97, 16.03], [78.5, 16.25], [78.8, 16.13], [78.97, 16.53], [79.5, 16.75], [79.8, 16.63], [79.97, 17.03], [80.32, 17.18], [80.38, 17.3], [80.25, 17.35], [80.0, 17.25], [79.47, 17.47], [79.25, 18.0], [79.46, 18.5], [79.25, 19.0], [79.47, 19.53], [79.82, 19.68], [79.85, 19.75], [79.82, 19.82], [79.47, 19.97], [79.25, 20.5], [79.35, 20.75], [79.25, 21.0], [79.47, 21.53], [80.0, 21.75], [80.53, 21.53], [80.68, 21.18], [80.75, 21.15], [81.0, 21.25], [81.5, 21.04], [82.0, 21.25], [82.53, 21.03], [82.68, 20.68], [83.0, 20.54], [83.5, 20.75], [84.03, 20.53], [84.25, 20.0], [84.13, 19.7], [84.25, 19.65], [84.5, 19.75], [84.75, 19.65], [84.82, 19.68], [84.85, 19.75], [84.75, 20.0], [84.97, 20.53], [85.38, 20.7], [85.32, 20.82], [84.97, 20.97], [84.75, 21.5], [84.97, 22.03], [85.5, 22.25], [86.03, 22.03], [86.18, 21.68], [86.25, 21.65], [86.5, 21.75], [87.03, 21.53], [87.18, 21.18], [87.53, 21.03], [87.75, 20.5], [87.53, 19.97], [87.18, 19.82], [87.03, 19.47], [86.68, 19.32], [86.65, 19.25], [86.75, 19.0], [86.53, 18.47], [86.18, 18.32], [86.03, 17.97], [85.68, 17.82], [85.65, 17.75], [85.75, 17.5], [85.53, 16.97], [85.18, 16.82], [85.03, 16.47], [84.68, 16.32], [84.53, 15.97], [84.0, 15.75], [83.75, 15.85], [83.68, 15.82], [83.53, 15.47], [83.18, 15.32], [83.03, 14.97], [82.5, 14.75], [82.25, 14.85], [82.0, 14.75], [81.75, 14.85], [81.5, 14.75], [81.2, 14.87], [81.15, 14.75], [81.25, 14.5], [81.03, 13.97], [80.68, 13.82], [80.53, 13.47], [80.18, 13.32], [80.15, 13.25], [80.18, 13.18], [80.53, 13.03], [80.75, 12.5], [80.53, 11.97], [80.0, 11.75], [79.47, 11.97], [79.32, 12.32], [79.25, 12.35], [79.0, 12.25], [78.75, 12.35], [78.5, 12.25], [77.97, 12.47], [77.75, 13.0], [77.85, 13.25], [77.75, 13.5]]]]}, "2025-03-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[77.75, 14.5], [77.85, 14.75], [77.75, 15.0], [77.85, 15.25], [77.75, 15.5], [77.97, 16.03], [78.5, 16.25], [79.03, 16.03], [79.25, 15.5], [79.15, 15.25], [79.18, 15.18], [79.53, 15.03], [79.75, 14.5], [79.65, 14.25], [79.75, 14.0], [79.53, 13.47], [79.18, 13.32], [79.03, 12.97], [78.5, 12.75], [77.97, 12.97], [77.75, 13.5], [77.85, 13.75], [77.75, 14.0], [77.85, 14.25], [77.75, 14.5]]], [[[79.97, 14.97], [79.75, 15.5], [79.97, 16.03], [80.5, 16.25], [81.03, 16.03], [81.25, 15.5], [81.03, 14.97], [80.5, 14.75], [79.97, 14.97]]], [[[80.0, 21.75], [80.53, 21.53], [80.68, 21.18], [80.75, 21.15], [81.0, 21.25], [81.5, 21.04], [82.0, 21.25], [82.5, 21.04], [83.0, 21.25], [83.53, 21.03], [83.68, 20.68], [84.03, 20.53], [84.25, 20.0], [84.13, 19.7], [84.25, 19.65], [84.5, 19.75], [84.8, 19.63], [84.97, 20.03], [85.5, 20.25], [86.03, 20.03], [86.25, 19.5], [86.03, 18.97], [85.5, 18.75], [85.2, 18.88], [85.15, 18.75], [85.25, 18.5], [85.03, 17.97], [84.5, 17.75], [84.25, 17.85], [84.0, 17.75], [83.7, 17.88], [83.53, 17.47], [83.0, 17.25], [82.75, 17.35], [82.68, 17.32], [82.63, 17.2], [83.03, 17.03], [83.25, 16.5], [83.03, 15.97], [82.68, 15.82], [82.53, 15.47], [82.0, 15.25], [81.47, 15.47], [81.25, 16.0], [81.43, 16.43], [81.0, 16.25], [80.47, 16.47], [80.25, 17.0], [80.38, 17.3], [80.25, 17.35], [80.0, 17.25], [79.47, 17.47], [79.25, 18.0], [79.46, 18.5], [79.25, 19.0], [79.47, 19.53], [79.82, 19.68], [79.85, 19.75], [79.82, 19.82], [79.47, 19.97], [79.25, 20.5], [79.35, 20.75], [79.25, 21.0], [79.47, 21.53], [80.0, 21.75]], [[83.3, 18.88], [83.18, 18.82], [83.13, 18.7], [83.3, 18.63], [83.35, 18.75], [83.3, 18.88]], [[81.82, 16.68], [81.88, 16.8], [81.75, 16.85], [81.68, 16.82], [81.57, 16.57], [81.82, 16.68]]], [[[85.25, 21.0], [85.47, 21.53], [86.0, 21.75], [86.25, 21.65], [86.5, 21.75], [87.03, 21.53], [87.25, 21.0], [87.03, 20.47], [86.5, 20.25], [86.25, 20.35], [86.0, 20.25], [85.47, 20.47], [85.25, 21.0]]]]}, "2025-03-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[79.75, 20.0], [79.97, 20.53], [80.5, 20.75], [80.75, 20.65], [81.0, 20.75], [81.25, 20.65], [81.32, 20.68], [81.47, 21.03], [82.0, 21.25], [82.5, 21.04], [83.0, 21.25], [83.53, 21.03], [83.68, 20.68], [84.03, 20.53], [84.25, 20.0], [84.03, 19.47], [83.68, 19.32], [83.53, 18.97], [83.18, 18.82], [83.03, 18.47], [82.68, 18.32], [82.53, 17.97], [82.0, 17.75], [81.75, 17.85], [81.5, 17.75], [80.97, 17.97], [80.75, 18.5], [80.85, 18.75], [80.82, 18.82], [80.75, 18.85], [80.5, 18.75], [79.97, 18.97], [79.75, 19.5], [79.85, 19.75], [79.75, 20.0]]]]}, "2025-04-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[82.0, 17.75], [81.47, 17.97], [81.25, 18.5], [81.47, 19.03], [82.0, 19.25], [82.53, 19.03], [82.75, 18.5], [82.53, 17.97], [82.0, 17.75]]], [[[83.0, 19.75], [82.47, 19.97], [82.25, 20.5], [82.47, 21.03], [83.0, 21.25], [83.53, 21.03], [83.75, 20.5], [83.53, 19.97], [83.0, 19.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.3554576254625204}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.707674844857837}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [29.714834255642415, 29.784677587771, 30.44450889356216, 30.586629519842404, 31.44796544855285, 31.669266938326643, 32.30688883463546]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [31.29260660807296, 34.12253087361654, 35.196413930257165, 35.44981282552084, 34.57947438557943, 33.3239621480306, 33.34473063151046]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.1564353840226527, 1.2903636644694776, 1.7060330738422982, 1.7696300867980022, 2.044317588176735, 2.397973497351622, 1.871431990143293]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.7068579851977006, 2.620106366273774, 3.3554576254625204, 3.337899430063601, 3.348930694722071, 3.2339705814311515, 2.3196756353716523]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.2796455305749166, 1.542542854913721, 1.7896815700486923, 1.8435869779087954, 1.5584060106057724, 1.481749040246112, 1.2341240164142717]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.3894251136560243, 2.1319472230429284, 2.5117152154908324, 2.780086652178166, 2.7392552785781645, 2.1209310052731194, 1.2515571113746038]}}