{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:07:02.714840", "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-Aug-26_to_2025-Aug-29_98.0_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": 2025080000866}, "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": "August 26 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 29 2025"}, "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": 98929.39701722917}, "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": ["Myanmar", "Thailand"]}, "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": 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": 98.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "98.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 96.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 101.0}, "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": 22.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[97.47, 20.03], [98.0, 20.25], [98.25, 20.15], [98.5, 20.25], [99.03, 20.03], [99.18, 19.68], [99.25, 19.65], [99.5, 19.75], 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20.03]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Asia", "S.Asia", "S.E.Asia"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2025-08-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[96.97, 18.47], [96.75, 19.0], [96.97, 19.53], [97.32, 19.68], [97.47, 20.03], [98.0, 20.25], [98.25, 20.15], [98.5, 20.25], [99.03, 20.03], [99.18, 19.68], [99.25, 19.65], [99.5, 19.75], [99.75, 19.65], [99.82, 19.68], [99.97, 20.03], [100.5, 20.25], [101.03, 20.03], [101.18, 19.68], [101.53, 19.53], [101.75, 19.0], [101.53, 18.47], [101.0, 18.25], [100.75, 18.35], [100.5, 18.25], [100.25, 18.35], [100.18, 18.32], [100.03, 17.97], [99.5, 17.75], [99.25, 17.85], [99.0, 17.75], [98.75, 17.85], [98.68, 17.82], [98.53, 17.47], [98.0, 17.25], [97.47, 17.47], [97.25, 18.0], [97.35, 18.25], [97.32, 18.32], [96.97, 18.47]]]]}, 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-1.6235713198149928, -1.3786886049478098]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.56429829407665, -2.370157065635283, -2.5838718529707307, -2.217377102241244]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.90584566967462, -2.2143625888457574, -1.8967297193211887, -1.6388589521527095]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.7564312515113985, -2.874132929735548, -2.7890293969174573, -1.969944793654479]}}