{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:15:03.396032", "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": "2021-Oct-10_to_2021-Oct-14_326.5_-77.5"}, "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": 2021100001707}, "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": "October 10 2021"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 14 2021"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 53471.2959188502}, "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": ["Antarctica"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Antarctica"]}, "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": ["Weddell Sea"]}, "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": -77.5}, "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": 326.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "326.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 314.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 329.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -77.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -75.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-33.5, -78.25], [-33.75, -78.15], [-34.0, -78.25], [-34.25, -78.15], [-34.5, -78.25], [-34.75, -78.15], [-35.0, -78.25], [-35.25, -78.15], [-35.5, -78.25], [-35.75, -78.15], [-36.0, -78.25], [-36.25, -78.15], [-36.5, -78.25], [-36.75, -78.15], [-37.0, -78.25], [-37.25, -78.15], [-37.5, -78.25], [-37.75, -78.15], [-38.0, -78.25], [-38.25, -78.15], [-38.5, -78.25], [-38.75, -78.15], [-39.0, -78.25], [-39.25, -78.15], [-39.5, -78.25], [-40.03, -78.03], [-40.18, -77.68], [-40.25, -77.65], [-40.5, -77.75], [-40.75, -77.65], [-41.0, -77.75], [-41.53, -77.53], [-41.68, -77.18], [-42.03, -77.03], [-42.25, -76.5], [-42.15, -76.25], [-42.18, -76.18], [-42.25, -76.15], [-42.5, -76.25], [-42.75, -76.15], [-43.0, -76.25], [-43.25, -76.15], [-43.5, -76.25], [-43.75, -76.15], [-44.0, -76.25], [-44.25, -76.15], [-44.5, -76.25], [-44.75, -76.15], [-45.0, -76.25], [-45.53, -76.03], [-45.68, -75.68], [-46.03, -75.53], [-46.25, -75.0], [-46.03, -74.47], [-45.5, -74.25], [-45.25, -74.35], [-45.0, -74.25], [-44.75, -74.35], [-44.5, -74.25], [-44.25, -74.35], [-44.0, -74.25], [-43.75, -74.35], [-43.5, -74.25], [-43.25, -74.35], [-43.0, -74.25], [-42.75, -74.35], [-42.5, -74.25], [-42.25, -74.35], [-42.0, -74.25], [-41.47, -74.47], [-41.32, -74.82], [-41.25, -74.85], [-41.0, -74.75], [-40.75, -74.85], [-40.5, -74.75], [-39.97, -74.97], [-39.82, -75.32], [-39.75, -75.35], [-39.5, -75.25], [-39.25, -75.35], [-39.0, -75.25], [-38.75, -75.35], [-38.5, -75.25], [-38.25, -75.35], [-38.0, -75.25], [-37.75, -75.35], [-37.5, -75.25], [-37.25, -75.35], [-37.0, -75.25], [-36.47, -75.47], [-36.25, -76.0], [-36.37, -76.3], [-36.25, -76.35], [-36.0, -76.25], [-35.75, -76.35], [-35.5, -76.25], [-35.25, -76.35], [-35.0, -76.25], [-34.75, -76.35], [-34.68, -76.32], [-34.53, -75.97], [-34.0, -75.75], [-33.75, -75.85], [-33.5, -75.75], [-33.25, -75.85], [-33.0, -75.75], [-32.75, -75.85], [-32.5, -75.75], [-32.25, -75.85], [-32.0, -75.75], [-31.75, -75.85], [-31.5, -75.75], [-31.25, -75.85], [-31.0, -75.75], [-30.75, -75.85], [-30.5, -75.75], [-29.97, -75.97], [-29.75, -76.5], [-29.97, -77.03], [-30.32, -77.18], [-30.47, -77.53], [-31.0, -77.75], [-31.25, -77.65], [-31.5, -77.75], [-31.75, -77.65], [-31.82, -77.68], [-31.97, -78.03], [-32.5, -78.25], [-32.75, -78.15], [-33.0, -78.25], [-33.25, -78.15], [-33.5, -78.25]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Antarctica", "Southern-Ocean"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2021-10-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-34.02999999999997, -76.97], [-33.5, -76.75], [-32.97000000000003, -76.97], [-32.75, -77.5], [-32.97000000000003, -78.03], [-33.5, -78.25], [-34.02999999999997, -78.03], [-34.25, -77.5], [-34.02999999999997, -76.97]]]]}, "2021-10-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-46.02999999999997, -75.53], [-46.25, -75.0], [-46.02999999999997, -74.47], [-45.5, -74.25], [-45.25, -74.35], [-45.0, -74.25], [-44.75, -74.35], [-44.5, -74.25], [-44.25, -74.35], [-44.0, -74.25], [-43.75, -74.35], [-43.5, -74.25], [-43.25, -74.35], [-43.0, -74.25], [-42.75, -74.35], [-42.5, -74.25], [-42.25, -74.35], [-42.0, -74.25], [-41.47000000000003, -74.47], [-41.31999999999999, -74.82], [-41.25, -74.85], [-41.0, -74.75], [-40.75, -74.85], [-40.5, -74.75], [-39.97000000000003, -74.97], [-39.81999999999999, -75.32], [-39.75, -75.35], [-39.5, -75.25], [-39.25, -75.35], [-39.0, -75.25], [-38.75, -75.35], [-38.5, -75.25], [-38.25, -75.35], [-38.0, -75.25], [-37.75, -75.35], [-37.5, -75.25], [-37.25, -75.35], [-37.0, -75.25], [-36.47000000000003, -75.47], [-36.25, -76.0], [-36.370000000000005, -76.3], [-36.25, -76.35], [-36.0, -76.25], [-35.75, -76.35], [-35.5, -76.25], [-35.25, -76.35], [-35.0, -76.25], [-34.75, -76.35], [-34.68000000000001, -76.32], [-34.52999999999997, -75.97], [-34.0, -75.75], [-33.75, -75.85], [-33.5, -75.75], [-33.25, -75.85], [-33.0, -75.75], [-32.75, -75.85], [-32.5, -75.75], [-32.25, -75.85], [-32.0, -75.75], [-31.75, -75.85], [-31.5, -75.75], [-31.25, -75.85], [-31.0, -75.75], [-30.75, -75.85], [-30.5, -75.75], [-29.970000000000027, -75.97], [-29.75, -76.5], [-29.970000000000027, -77.03], [-30.319999999999993, -77.18], [-30.470000000000027, -77.53], [-31.0, -77.75], [-31.25, -77.65], [-31.5, -77.75], [-31.75, -77.65], [-31.819999999999993, -77.68], [-31.970000000000027, -78.03], [-32.5, -78.25], [-32.75, -78.15], [-33.0, -78.25], [-33.25, -78.15], [-33.5, -78.25], [-33.75, -78.15], [-34.0, -78.25], [-34.25, -78.15], [-34.5, -78.25], [-34.75, -78.15], [-35.0, -78.25], [-35.25, -78.15], [-35.5, -78.25], [-35.75, -78.15], [-36.0, -78.25], [-36.25, -78.15], [-36.5, -78.25], [-36.75, -78.15], [-37.0, -78.25], [-37.25, -78.15], [-37.5, -78.25], [-37.75, -78.15], [-38.0, -78.25], [-38.25, -78.15], [-38.5, -78.25], [-38.75, -78.15], [-39.0, -78.25], [-39.25, -78.15], [-39.5, -78.25], [-40.02999999999997, -78.03], [-40.25, -77.5], [-40.02999999999997, -76.97], [-39.68000000000001, -76.82], [-39.620000000000005, -76.7], [-39.75, -76.65], [-40.0, -76.75], [-40.25, -76.65], [-40.5, -76.75], [-40.75, -76.65], [-41.0, -76.75], [-41.25, -76.65], [-41.5, -76.75], [-42.02999999999997, -76.53], [-42.18000000000001, -76.18], [-42.25, -76.15], [-42.5, -76.25], [-42.75, -76.15], [-43.0, -76.25], [-43.25, -76.15], [-43.5, -76.25], [-43.75, -76.15], [-44.0, -76.25], [-44.25, -76.15], [-44.5, -76.25], [-44.75, -76.15], [-45.0, -76.25], [-45.52999999999997, -76.03], [-45.68000000000001, -75.68], [-46.02999999999997, -75.53]]]]}, "2021-10-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-46.02999999999997, -75.53], [-46.25, -75.0], [-46.02999999999997, -74.47], [-45.5, -74.25], [-45.25, -74.35], [-45.0, -74.25], [-44.75, -74.35], [-44.5, -74.25], [-44.25, -74.35], [-44.0, -74.25], [-43.75, -74.35], [-43.5, -74.25], [-43.25, -74.35], [-43.0, -74.25], [-42.75, -74.35], [-42.5, -74.25], [-42.25, -74.35], [-42.0, -74.25], [-41.47000000000003, -74.47], [-41.31999999999999, -74.82], [-41.25, -74.85], [-41.0, -74.75], [-40.75, -74.85], [-40.5, -74.75], [-39.97000000000003, -74.97], [-39.81999999999999, -75.32], [-39.75, -75.35], [-39.5, -75.25], [-39.25, -75.35], [-39.0, -75.25], [-38.75, -75.35], [-38.5, -75.25], [-38.25, -75.35], [-38.0, -75.25], [-37.75, -75.35], [-37.5, -75.25], [-37.25, -75.35], [-37.0, -75.25], [-36.47000000000003, -75.47], [-36.25, -76.0], [-36.370000000000005, -76.3], [-36.25, -76.35], [-36.0, -76.25], [-35.75, -76.35], [-35.5, -76.25], [-35.25, -76.35], [-35.0, -76.25], [-34.75, -76.35], [-34.68000000000001, -76.32], [-34.52999999999997, -75.97], [-34.0, -75.75], [-33.75, -75.85], [-33.5, -75.75], [-33.25, -75.85], [-33.0, -75.75], [-32.75, -75.85], [-32.5, -75.75], [-32.25, -75.85], [-32.0, -75.75], [-31.75, -75.85], [-31.5, -75.75], [-31.25, -75.85], [-31.0, -75.75], [-30.75, -75.85], [-30.5, -75.75], [-29.970000000000027, -75.97], [-29.75, -76.5], [-29.970000000000027, -77.03], [-30.319999999999993, -77.18], [-30.470000000000027, -77.53], [-31.0, -77.75], [-31.25, -77.65], [-31.5, -77.75], [-31.75, -77.65], [-31.819999999999993, -77.68], [-31.970000000000027, -78.03], [-32.5, -78.25], [-32.75, -78.15], [-33.0, -78.25], [-33.25, -78.15], [-33.5, -78.25], [-33.75, -78.15], [-34.0, -78.25], [-34.25, -78.15], [-34.5, -78.25], [-34.75, -78.15], [-35.0, -78.25], [-35.25, -78.15], [-35.5, -78.25], [-35.75, -78.15], [-36.0, -78.25], [-36.25, -78.15], [-36.5, -78.25], [-36.75, -78.15], [-37.0, -78.25], [-37.25, -78.15], [-37.5, -78.25], [-37.75, -78.15], [-38.0, -78.25], [-38.25, -78.15], [-38.5, -78.25], [-38.75, -78.15], [-39.0, -78.25], [-39.25, -78.15], [-39.5, -78.25], [-40.02999999999997, -78.03], [-40.18000000000001, -77.68], [-40.25, -77.65], [-40.5, -77.75], [-40.75, -77.65], [-41.0, -77.75], [-41.52999999999997, -77.53], [-41.68000000000001, -77.18], [-42.02999999999997, -77.03], [-42.25, -76.5], [-42.14999999999998, -76.25], [-42.18000000000001, -76.18], [-42.25, -76.15], [-42.5, -76.25], [-42.75, -76.15], [-43.0, -76.25], [-43.25, -76.15], [-43.5, -76.25], [-43.75, -76.15], [-44.0, -76.25], [-44.25, -76.15], [-44.5, -76.25], [-44.75, -76.15], [-45.0, -76.25], [-45.52999999999997, -76.03], [-45.68000000000001, -75.68], [-46.02999999999997, -75.53]]]]}, "2021-10-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-46.02999999999997, -75.53], [-46.25, -75.0], [-46.02999999999997, -74.47], [-45.5, -74.25], [-45.25, -74.35], [-45.0, -74.25], [-44.75, -74.35], [-44.5, -74.25], [-44.25, -74.35], [-44.0, -74.25], [-43.75, -74.35], [-43.5, -74.25], [-43.25, -74.35], [-43.0, -74.25], [-42.75, -74.35], [-42.5, -74.25], [-42.25, -74.35], [-42.0, -74.25], [-41.47000000000003, -74.47], [-41.31999999999999, -74.82], [-41.25, -74.85], [-41.0, -74.75], [-40.75, -74.85], [-40.5, -74.75], [-39.97000000000003, -74.97], [-39.81999999999999, -75.32], [-39.75, -75.35], [-39.5, -75.25], [-39.25, -75.35], [-39.0, -75.25], [-38.75, -75.35], [-38.5, -75.25], [-38.25, -75.35], [-38.0, -75.25], [-37.75, -75.35], [-37.5, -75.25], [-37.25, -75.35], [-37.0, -75.25], [-36.47000000000003, -75.47], [-36.25, -76.0], [-36.370000000000005, -76.3], [-36.25, -76.35], [-36.0, -76.25], [-35.75, -76.35], [-35.5, -76.25], [-35.25, -76.35], [-35.0, -76.25], [-34.75, -76.35], [-34.68000000000001, -76.32], [-34.52999999999997, -75.97], [-34.0, -75.75], [-33.75, -75.85], [-33.5, -75.75], [-33.25, -75.85], [-33.0, -75.75], [-32.75, -75.85], [-32.5, -75.75], [-32.25, -75.85], [-32.0, -75.75], [-31.75, -75.85], [-31.5, -75.75], [-31.25, -75.85], [-31.0, -75.75], [-30.75, -75.85], [-30.5, -75.75], [-29.970000000000027, -75.97], [-29.75, -76.5], [-29.970000000000027, -77.03], [-30.319999999999993, -77.18], [-30.470000000000027, -77.53], [-31.0, -77.75], [-31.25, -77.65], [-31.5, -77.75], [-31.75, -77.65], [-31.819999999999993, -77.68], [-31.970000000000027, -78.03], [-32.5, -78.25], [-32.75, -78.15], [-33.0, -78.25], [-33.25, -78.15], [-33.5, -78.25], [-33.75, -78.15], [-34.0, -78.25], [-34.25, -78.15], [-34.5, -78.25], [-34.75, -78.15], [-35.0, -78.25], [-35.25, -78.15], [-35.5, -78.25], [-35.75, -78.15], [-36.0, -78.25], [-36.25, -78.15], [-36.5, -78.25], [-36.75, -78.15], [-37.0, -78.25], [-37.25, -78.15], [-37.5, -78.25], [-37.75, -78.15], [-38.0, -78.25], [-38.25, -78.15], [-38.5, -78.25], [-38.75, -78.15], [-39.0, -78.25], [-39.25, -78.15], [-39.5, -78.25], [-40.02999999999997, -78.03], [-40.18000000000001, -77.68], [-40.25, -77.65], [-40.5, -77.75], [-40.75, -77.65], [-41.0, -77.75], [-41.52999999999997, -77.53], [-41.68000000000001, -77.18], [-42.02999999999997, -77.03], [-42.25, -76.5], [-42.14999999999998, -76.25], [-42.18000000000001, -76.18], [-42.25, -76.15], [-42.5, -76.25], [-42.75, -76.15], [-43.0, -76.25], [-43.25, -76.15], [-43.5, -76.25], [-43.75, -76.15], [-44.0, -76.25], [-44.25, -76.15], [-44.5, -76.25], [-44.75, -76.15], [-45.0, -76.25], [-45.52999999999997, -76.03], [-45.68000000000001, -75.68], [-46.02999999999997, -75.53]]]]}, "2021-10-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-42.02999999999997, -77.03], [-42.25, -76.5], [-42.02999999999997, -75.97], [-41.5, -75.75], [-41.25, -75.85], [-41.0, -75.75], [-40.47000000000003, -75.97], [-40.31999999999999, -76.32], [-40.25, -76.35], [-40.0, -76.25], [-39.75, -76.35], [-39.5, -76.25], [-38.97000000000003, -76.47], [-38.75, -77.0], [-38.97000000000003, -77.53], [-39.5, -77.75], [-39.75, -77.65], [-40.0, -77.75], [-40.25, -77.65], [-40.5, -77.75], [-40.75, -77.65], [-41.0, -77.75], [-41.52999999999997, -77.53], [-41.68000000000001, -77.18], [-42.02999999999997, -77.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 8.995902738791813}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 7.192817379282021}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-13.197750637156162, -9.807074714405076, -9.479774746520718, -10.026360551710411, -11.424688475608548]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-13.197750637156162, -7.959705817678014, -7.606509785837488, -8.456877450381853, -11.254871100231298]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [6.656498492214979, 7.202257153608061, 7.553082551881748, 6.909766264313551, 6.222913040645953]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [6.656498492214979, 8.893804794267908, 8.995902738791813, 7.682691771449356, 6.518642127286768]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3166329525428941, 1.4974927653255719, 1.5920903132753186, 1.500485789476259, 1.2656763195652236]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.3166329525428941, 1.7315100367533407, 1.7492835422942834, 1.7149787937406578, 1.303474872352108]}}