{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:18:43.126515", "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-Mar-21_to_2022-Mar-24_94.5_20.0"}, "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": 2022030000743}, "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 21 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 24 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": 67242.06145653865}, "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"]}, "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": 20.0}, "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": 94.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "94.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 94.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 96.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 16.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 21.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[94.47, 15.47], [94.25, 16.0], [94.35, 16.25], [94.25, 16.5], [94.46, 17.0], [94.25, 17.5], [94.35, 17.75], [94.25, 18.0], [94.35, 18.25], [94.3, 18.38], [94.0, 18.25], [93.47, 18.47], [93.25, 19.0], [93.47, 19.53], [93.82, 19.68], [93.85, 19.75], [93.82, 19.82], [93.47, 19.97], [93.25, 20.5], [93.47, 21.03], [93.82, 21.18], [93.97, 21.53], [94.5, 21.75], [94.75, 21.65], [95.0, 21.75], [95.53, 21.53], [95.68, 21.18], [96.03, 21.03], [96.25, 20.5], [96.04, 20.0], [96.25, 19.5], [96.13, 19.2], [96.53, 19.03], [96.75, 18.5], [96.65, 18.25], [96.75, 18.0], [96.65, 17.75], [96.75, 17.5], [96.53, 16.97], [96.18, 16.82], [96.15, 16.75], [96.25, 16.5], [96.03, 15.97], [95.68, 15.82], [95.53, 15.47], [95.0, 15.25], [94.47, 15.47]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.Asia", "S.E.Asia"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-03-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[94.25, 16.5], [94.46, 17.0], [94.25, 17.5], [94.47, 18.03], [95.0, 18.25], [95.5, 18.04], [96.0, 18.25], [96.53, 18.03], [96.75, 17.5], [96.53, 16.97], [96.18, 16.82], [96.15, 16.75], [96.25, 16.5], [96.03, 15.97], [95.68, 15.82], [95.53, 15.47], [95.0, 15.25], [94.47, 15.47], [94.25, 16.0], [94.35, 16.25], [94.25, 16.5]]]]}, "2022-03-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[93.85, 19.75], [93.82, 19.82], [93.47, 19.97], [93.25, 20.5], [93.47, 21.03], [93.82, 21.18], [93.97, 21.53], [94.5, 21.75], [94.75, 21.65], [95.0, 21.75], [95.53, 21.53], [95.68, 21.18], [96.03, 21.03], [96.25, 20.5], [96.04, 20.0], [96.25, 19.5], [96.13, 19.2], [96.53, 19.03], [96.75, 18.5], [96.65, 18.25], [96.75, 18.0], [96.65, 17.75], [96.75, 17.5], [96.53, 16.97], [96.18, 16.82], [96.15, 16.75], [96.25, 16.5], [96.03, 15.97], [95.68, 15.82], [95.53, 15.47], [95.0, 15.25], [94.47, 15.47], [94.25, 16.0], [94.35, 16.25], [94.25, 16.5], [94.46, 17.0], [94.25, 17.5], [94.35, 17.75], [94.25, 18.0], [94.35, 18.25], [94.3, 18.38], [94.0, 18.25], [93.47, 18.47], [93.25, 19.0], [93.47, 19.53], [93.82, 19.68], [93.85, 19.75]]]]}, "2022-03-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[93.85, 19.75], [93.82, 19.82], [93.47, 19.97], [93.25, 20.5], [93.47, 21.03], [93.82, 21.18], [93.97, 21.53], [94.5, 21.75], [94.75, 21.65], [95.0, 21.75], [95.53, 21.53], [95.68, 21.18], [96.03, 21.03], [96.25, 20.5], [96.04, 20.0], [96.25, 19.5], [96.13, 19.2], [96.53, 19.03], [96.75, 18.5], [96.65, 18.25], [96.75, 18.0], [96.65, 17.75], [96.75, 17.5], [96.53, 16.97], [96.18, 16.82], [96.15, 16.75], [96.25, 16.5], [96.03, 15.97], [95.68, 15.82], [95.53, 15.47], [95.0, 15.25], [94.47, 15.47], [94.25, 16.0], [94.35, 16.25], [94.25, 16.5], [94.46, 17.0], [94.25, 17.5], [94.35, 17.75], [94.25, 18.0], [94.35, 18.25], [94.3, 18.38], [94.0, 18.25], [93.47, 18.47], [93.25, 19.0], [93.47, 19.53], [93.82, 19.68], [93.85, 19.75]]]]}, "2022-03-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[95.75, 16.0], [95.53, 15.47], [95.0, 15.25], [94.47, 15.47], [94.25, 16.0], [94.47, 16.53], [95.0, 16.75], [95.53, 16.53], [95.75, 16.0]]], [[[93.82, 19.82], [93.47, 19.97], [93.25, 20.5], [93.47, 21.03], [93.82, 21.18], [93.97, 21.53], [94.5, 21.75], [94.75, 21.65], [95.0, 21.75], [95.53, 21.53], [95.68, 21.18], [96.03, 21.03], [96.25, 20.5], [96.04, 20.0], [96.25, 19.5], [96.13, 19.2], [96.53, 19.03], [96.75, 18.5], [96.65, 18.25], [96.75, 18.0], [96.65, 17.75], [96.75, 17.5], [96.53, 16.97], [96.0, 16.75], [95.5, 16.96], [95.0, 16.75], [94.47, 16.97], [94.25, 17.5], [94.35, 17.75], [94.25, 18.0], [94.35, 18.25], [94.3, 18.38], [94.0, 18.25], [93.47, 18.47], [93.25, 19.0], [93.47, 19.53], [93.82, 19.68], [93.85, 19.75], [93.82, 19.82]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -6.193400677532395}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.7371046906114143}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.53636802192642, 25.896386848010707, 24.71404274255616, 26.696161864772705]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.896423243575555, 22.970483358311128, 20.487875716194765, 23.36438234886583]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.483972174263073, -2.633686293361625, -3.8951191713411033, -1.9002589495140314]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.96179868135863, -3.7192236575423294, -6.193400677532395, -2.587599578408515]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.4653324074389713, -2.4734598304090247, -3.546644314066253, -1.6983128360033355]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.8031322606364353, -3.6440499189391096, -5.079405563218322, -2.1556584396092657]}}