{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:00:23.552035", "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": "2024-Aug-01_to_2024-Aug-03_89.5_25.0"}, "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": 2024080000076}, "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 01 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 03 2024"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 3}, "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": 56407.75059276826}, "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": ["Bangladesh", "India"]}, "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": 25.0}, "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": 89.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "89.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 88.5}, "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": 23.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 25.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[88.35, 24.75], [88.25, 25.0], [88.47, 25.53], [89.0, 25.75], [89.25, 25.65], [89.5, 25.75], [89.75, 25.65], [90.0, 25.75], [90.25, 25.65], [90.5, 25.75], [91.03, 25.53], [91.18, 25.18], [91.53, 25.03], [91.75, 24.5], [91.65, 24.25], [91.75, 24.0], [91.53, 23.47], [91.18, 23.32], [91.03, 22.97], [90.5, 22.75], [90.25, 22.85], [90.18, 22.82], [90.03, 22.47], [89.5, 22.25], [88.97, 22.47], [88.82, 22.82], [88.75, 22.85], [88.5, 22.75], [87.97, 22.97], [87.75, 23.5], [87.97, 24.03], [88.32, 24.18], [88.35, 24.25], [88.25, 24.5], [88.35, 24.75]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.Asia"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-08-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[88.35, 24.25], [88.25, 24.5], [88.35, 24.75], [88.25, 25.0], [88.47, 25.53], [89.0, 25.75], [89.25, 25.65], [89.5, 25.75], [89.75, 25.65], [90.0, 25.75], [90.25, 25.65], [90.5, 25.75], [91.03, 25.53], [91.18, 25.18], [91.53, 25.03], [91.75, 24.5], [91.65, 24.25], [91.75, 24.0], [91.53, 23.47], [91.18, 23.32], [91.03, 22.97], [90.5, 22.75], [90.25, 22.85], [90.18, 22.82], [90.03, 22.47], [89.5, 22.25], [88.97, 22.47], [88.82, 22.82], [88.75, 22.85], [88.5, 22.75], [87.97, 22.97], [87.75, 23.5], [87.97, 24.03], [88.32, 24.18], [88.35, 24.25]]]]}, "2024-08-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[88.35, 24.25], [88.25, 24.5], [88.35, 24.75], [88.25, 25.0], [88.47, 25.53], [89.0, 25.75], [89.25, 25.65], [89.5, 25.75], [89.75, 25.65], [90.0, 25.75], [90.25, 25.65], [90.5, 25.75], [91.03, 25.53], [91.18, 25.18], [91.53, 25.03], [91.75, 24.5], [91.65, 24.25], [91.75, 24.0], [91.53, 23.47], [91.18, 23.32], [91.03, 22.97], [90.5, 22.75], [90.25, 22.85], [90.18, 22.82], [90.03, 22.47], [89.5, 22.25], [88.97, 22.47], [88.82, 22.82], [88.75, 22.85], [88.5, 22.75], [87.97, 22.97], [87.75, 23.5], [87.97, 24.03], [88.32, 24.18], [88.35, 24.25]]]]}, "2024-08-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[88.35, 24.25], [88.25, 24.5], [88.35, 24.75], [88.25, 25.0], [88.47, 25.53], [89.0, 25.75], [89.25, 25.65], [89.5, 25.75], [89.75, 25.65], [90.0, 25.75], [90.25, 25.65], [90.5, 25.75], [91.03, 25.53], [91.18, 25.18], [91.53, 25.03], [91.75, 24.5], [91.65, 24.25], [91.75, 24.0], [91.53, 23.47], [91.18, 23.32], [91.03, 22.97], [90.5, 22.75], [90.25, 22.85], [90.18, 22.82], [90.03, 22.47], [89.5, 22.25], [88.97, 22.47], [88.82, 22.82], [88.75, 22.85], [88.5, 22.75], [87.97, 22.97], [87.75, 23.5], [87.97, 24.03], [88.32, 24.18], [88.35, 24.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -2.9044087969325574}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.807012041384894}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.413633981417433, 26.935796197805587, 27.413112769387624]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.837169557545735, 25.655311482703553, 26.933652566374633]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.639559485318094, -2.1313515407793657, -1.6501250980572224]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.1037405918016248, -2.9044087969325574, -2.184162752627799]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.5925665773260191, -2.0021853903572007, -1.55477110650307]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.9892241553874868, -2.49484717802069, -1.971453440833344]}}