{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:59:05.950903", "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-May-25_to_2024-May-28_300.0_-65.5"}, "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": 2024050002022}, "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": "May 25 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 28 2024"}, "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": "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": 136443.6064251182}, "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": ["Larsen", "Southern Ocean"]}, "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": -65.5}, "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": 300.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "300.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 292.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 302.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -71.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -65.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-68.03, -67.47], [-67.5, -67.25], [-67.25, -67.35], [-67.0, -67.25], [-66.75, -67.35], [-66.68, -67.32], [-66.53, -66.97], [-66.18, -66.82], [-66.03, -66.47], [-65.5, -66.25], [-65.25, -66.35], [-65.0, -66.25], [-64.75, -66.35], [-64.5, -66.25], [-64.25, -66.35], [-64.0, -66.25], [-63.47, -66.47], [-63.32, -66.82], [-63.25, -66.85], [-63.18, -66.82], [-63.15, -66.75], [-63.25, -66.5], [-63.15, -66.25], [-63.25, -66.0], [-63.03, -65.47], [-62.68, -65.32], [-62.53, -64.97], [-62.0, -64.75], [-61.75, -64.85], [-61.5, -64.75], [-61.25, -64.85], [-61.0, -64.75], [-60.75, -64.85], [-60.5, -64.75], [-60.25, -64.85], [-60.0, -64.75], [-59.75, -64.85], [-59.5, -64.75], [-59.25, -64.85], [-59.0, -64.75], [-58.47, -64.97], [-58.32, -65.32], [-57.97, -65.47], [-57.82, -65.82], [-57.47, -65.97], [-57.32, -66.32], [-56.97, -66.47], [-56.75, -67.0], [-56.85, -67.25], [-56.75, -67.5], [-56.97, -68.03], [-57.5, -68.25], [-57.75, -68.15], [-58.0, -68.25], [-58.25, -68.15], [-58.32, -68.18], [-58.35, -68.25], [-58.32, -68.32], [-57.97, -68.47], [-57.75, -69.0], [-57.85, -69.25], [-57.75, -69.5], [-57.97, -70.03], [-58.5, -70.25], [-59.03, -70.03], [-59.18, -69.68], [-59.25, -69.65], [-59.5, -69.75], [-59.75, -69.65], [-60.0, -69.75], [-60.25, -69.65], [-60.5, -69.75], [-60.75, -69.65], [-60.82, -69.68], [-60.97, -70.03], [-61.5, -70.25], [-61.8, -70.12], [-61.87, -70.3], [-61.47, -70.47], [-61.25, -71.0], [-61.47, -71.53], [-62.0, -71.75], [-62.25, -71.65], [-62.5, -71.75], [-62.75, -71.65], [-63.0, -71.75], [-63.25, -71.65], [-63.5, -71.75], [-64.03, -71.53], [-64.25, -71.0], [-64.15, -70.75], [-64.25, -70.5], [-64.15, -70.25], [-64.18, -70.18], [-64.53, -70.03], [-64.68, -69.68], [-64.75, -69.65], [-65.0, -69.75], [-65.53, -69.53], [-65.68, -69.18], [-65.75, -69.15], [-66.0, -69.25], [-66.25, -69.15], [-66.5, -69.25], [-67.03, -69.03], [-67.18, -68.68], [-67.25, -68.65], [-67.5, -68.75], [-68.03, -68.53], [-68.25, -68.0], [-68.03, -67.47]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["W.Antarctica"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-05-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-67.5, -68.75], [-68.02999999999997, -68.53], [-68.25, -68.0], [-68.02999999999997, -67.47], [-67.5, -67.25], [-67.25, -67.35], [-67.0, -67.25], [-66.75, -67.35], [-66.68, -67.32], [-66.52999999999997, -66.97], [-66.18, -66.82], [-66.02999999999997, -66.47], [-65.5, -66.25], [-65.25, -66.35], [-65.0, -66.25], [-64.75, -66.35], [-64.5, -66.25], [-64.25, -66.35], [-64.0, -66.25], [-63.47000000000003, -66.47], [-63.31999999999999, -66.82], [-63.25, -66.85], [-63.18000000000001, -66.82], [-63.14999999999998, -66.75], [-63.25, -66.5], [-63.14999999999998, -66.25], [-63.25, -66.0], [-63.02999999999997, -65.47], [-62.5, -65.25], [-62.25, -65.35], [-62.18000000000001, -65.32], [-62.02999999999997, -64.97], [-61.5, -64.75], [-61.25, -64.85], [-61.0, -64.75], [-60.75, -64.85], [-60.5, -64.75], [-60.25, -64.85], [-60.0, -64.75], [-59.75, -64.85], [-59.5, -64.75], [-58.97000000000003, -64.97], [-58.81999999999999, -65.32], [-58.75, -65.35], [-58.5, -65.25], [-57.97000000000003, -65.47], [-57.81999999999999, -65.82], [-57.47000000000003, -65.97], [-57.31999999999999, -66.32], [-56.97000000000003, -66.47], [-56.75, -67.0], [-56.85000000000002, -67.25], [-56.75, -67.5], [-56.97000000000003, -68.03], [-57.5, -68.25], [-57.75, -68.15], [-58.0, -68.25], [-58.25, -68.15], [-58.31999999999999, -68.18], [-58.35000000000002, -68.25], [-58.31999999999999, -68.32], [-57.97000000000003, -68.47], [-57.75, -69.0], [-57.85000000000002, -69.25], [-57.75, -69.5], [-57.97000000000003, -70.03], [-58.5, -70.25], [-59.02999999999997, -70.03], [-59.18000000000001, -69.68], [-59.25, -69.65], [-59.5, -69.75], [-59.75, -69.65], [-60.0, -69.75], [-60.25, -69.65], [-60.5, -69.75], [-60.75, -69.65], [-60.81999999999999, -69.68], [-60.97000000000003, -70.03], [-61.5, -70.25], [-61.80000000000001, -70.12], [-61.870000000000005, -70.3], [-61.47000000000003, -70.47], [-61.25, -71.0], [-61.47000000000003, -71.53], [-62.0, -71.75], [-62.25, -71.65], [-62.5, -71.75], [-62.75, -71.65], [-63.0, -71.75], [-63.25, -71.65], [-63.5, -71.75], [-64.02999999999997, -71.53], [-64.25, -71.0], [-64.14999999999998, -70.75], [-64.25, -70.5], [-64.14999999999998, -70.25], [-64.18, -70.18], [-64.52999999999997, -70.03], [-64.68, -69.68], [-64.75, -69.65], [-65.0, -69.75], [-65.52999999999997, -69.53], [-65.68, -69.18], [-65.75, -69.15], [-66.0, -69.25], [-66.25, -69.15], [-66.5, -69.25], [-67.02999999999997, -69.03], [-67.18, -68.68], [-67.25, -68.65], [-67.5, -68.75]]]]}, "2024-05-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-67.5, -68.75], [-68.02999999999997, -68.53], [-68.25, -68.0], [-68.02999999999997, -67.47], [-67.5, -67.25], [-67.25, -67.35], [-67.0, -67.25], [-66.75, -67.35], [-66.68, -67.32], [-66.52999999999997, -66.97], [-66.18, -66.82], [-66.02999999999997, -66.47], [-65.5, -66.25], [-65.25, -66.35], [-65.0, -66.25], [-64.75, -66.35], [-64.5, -66.25], [-64.25, -66.35], [-64.0, -66.25], [-63.47000000000003, -66.47], [-63.31999999999999, -66.82], [-63.25, -66.85], [-63.18000000000001, -66.82], [-63.14999999999998, -66.75], [-63.25, -66.5], [-63.14999999999998, -66.25], [-63.25, -66.0], [-63.02999999999997, -65.47], [-62.68000000000001, -65.32], [-62.52999999999997, -64.97], [-62.0, -64.75], [-61.75, -64.85], [-61.5, -64.75], [-61.25, -64.85], [-61.0, -64.75], [-60.75, -64.85], [-60.5, -64.75], [-60.25, -64.85], [-60.0, -64.75], [-59.75, -64.85], [-59.5, -64.75], [-59.25, -64.85], [-59.0, -64.75], [-58.47000000000003, -64.97], [-58.31999999999999, -65.32], [-57.97000000000003, -65.47], [-57.81999999999999, -65.82], [-57.47000000000003, -65.97], [-57.31999999999999, -66.32], [-56.97000000000003, -66.47], [-56.75, -67.0], [-56.85000000000002, -67.25], [-56.75, -67.5], [-56.97000000000003, -68.03], [-57.5, -68.25], [-57.75, -68.15], [-58.0, -68.25], [-58.25, -68.15], [-58.31999999999999, -68.18], [-58.35000000000002, -68.25], [-58.31999999999999, -68.32], [-57.97000000000003, -68.47], [-57.75, -69.0], [-57.85000000000002, -69.25], [-57.75, -69.5], [-57.97000000000003, -70.03], [-58.5, -70.25], [-59.02999999999997, -70.03], [-59.18000000000001, -69.68], [-59.25, -69.65], [-59.5, -69.75], [-59.75, -69.65], [-60.0, -69.75], [-60.25, -69.65], [-60.5, -69.75], [-60.75, -69.65], [-60.81999999999999, -69.68], [-60.97000000000003, -70.03], [-61.5, -70.25], [-61.80000000000001, -70.12], [-61.870000000000005, -70.3], [-61.47000000000003, -70.47], [-61.25, -71.0], [-61.47000000000003, -71.53], [-62.0, -71.75], [-62.25, -71.65], [-62.5, -71.75], [-62.75, -71.65], [-63.0, -71.75], [-63.25, -71.65], [-63.5, -71.75], [-64.02999999999997, -71.53], [-64.25, -71.0], [-64.14999999999998, -70.75], [-64.25, -70.5], [-64.14999999999998, -70.25], [-64.18, -70.18], [-64.52999999999997, -70.03], [-64.68, -69.68], [-64.75, -69.65], [-65.0, -69.75], [-65.52999999999997, -69.53], [-65.68, -69.18], [-65.75, -69.15], [-66.0, -69.25], [-66.25, -69.15], [-66.5, -69.25], [-67.02999999999997, -69.03], [-67.18, -68.68], [-67.25, -68.65], [-67.5, -68.75]]]]}, "2024-05-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-67.5, -68.75], [-68.02999999999997, -68.53], [-68.25, -68.0], [-68.02999999999997, -67.47], [-67.5, -67.25], [-67.25, -67.35], [-67.0, -67.25], [-66.75, -67.35], [-66.68, -67.32], [-66.52999999999997, -66.97], [-66.18, -66.82], [-66.02999999999997, -66.47], [-65.5, -66.25], [-65.25, -66.35], [-65.0, -66.25], [-64.75, -66.35], [-64.5, -66.25], [-64.25, -66.35], [-64.0, -66.25], [-63.47000000000003, -66.47], [-63.31999999999999, -66.82], [-63.25, -66.85], [-63.18000000000001, -66.82], [-63.14999999999998, -66.75], [-63.25, -66.5], [-63.14999999999998, -66.25], [-63.25, -66.0], [-63.02999999999997, -65.47], [-62.68000000000001, -65.32], [-62.52999999999997, -64.97], [-62.0, -64.75], [-61.75, -64.85], [-61.5, -64.75], [-61.25, -64.85], [-61.0, -64.75], [-60.75, -64.85], [-60.5, -64.75], [-60.25, -64.85], [-60.0, -64.75], [-59.75, -64.85], [-59.5, -64.75], [-59.25, -64.85], [-59.0, -64.75], [-58.47000000000003, -64.97], [-58.31999999999999, -65.32], [-57.97000000000003, -65.47], [-57.81999999999999, -65.82], [-57.47000000000003, -65.97], [-57.31999999999999, -66.32], [-56.97000000000003, -66.47], [-56.75, -67.0], [-56.85000000000002, -67.25], [-56.75, -67.5], [-56.97000000000003, -68.03], [-57.5, -68.25], [-57.75, -68.15], [-58.0, -68.25], [-58.25, -68.15], [-58.31999999999999, -68.18], [-58.35000000000002, -68.25], [-58.31999999999999, -68.32], [-57.97000000000003, -68.47], [-57.75, -69.0], [-57.85000000000002, -69.25], [-57.75, -69.5], [-57.97000000000003, -70.03], [-58.5, -70.25], [-59.02999999999997, -70.03], [-59.18000000000001, -69.68], [-59.25, -69.65], [-59.5, -69.75], [-59.75, -69.65], [-60.0, -69.75], [-60.25, -69.65], [-60.5, -69.75], [-60.75, -69.65], [-60.81999999999999, -69.68], [-60.97000000000003, -70.03], [-61.5, -70.25], [-61.80000000000001, -70.12], [-61.870000000000005, -70.3], [-61.47000000000003, -70.47], [-61.25, -71.0], [-61.47000000000003, -71.53], [-62.0, -71.75], [-62.25, -71.65], [-62.5, -71.75], [-62.75, -71.65], [-63.0, -71.75], [-63.25, -71.65], [-63.5, -71.75], [-64.02999999999997, -71.53], [-64.25, -71.0], [-64.14999999999998, -70.75], [-64.25, -70.5], [-64.14999999999998, -70.25], [-64.18, -70.18], [-64.52999999999997, -70.03], [-64.68, -69.68], [-64.75, -69.65], [-65.0, -69.75], [-65.52999999999997, -69.53], [-65.68, -69.18], [-65.75, -69.15], [-66.0, -69.25], [-66.25, -69.15], [-66.5, -69.25], [-67.02999999999997, -69.03], [-67.18, -68.68], [-67.25, -68.65], [-67.5, -68.75]]]]}, "2024-05-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-62.52999999999997, -66.03], [-62.75, -65.5], [-62.52999999999997, -64.97], [-62.0, -64.75], [-61.75, -64.85], [-61.5, -64.75], [-60.97000000000003, -64.97], [-60.75, -65.5], [-60.97000000000003, -66.03], [-61.5, -66.25], [-61.75, -66.15], [-62.0, -66.25], [-62.52999999999997, -66.03]]], [[[-60.0, -64.75], [-59.75, -64.85], [-59.5, -64.75], [-59.25, -64.85], [-59.0, -64.75], [-58.47000000000003, -64.97], [-58.25, -65.5], [-58.47000000000003, -66.03], [-59.0, -66.25], [-59.25, -66.15], [-59.5, -66.25], [-59.75, -66.15], [-60.0, -66.25], [-60.52999999999997, -66.03], [-60.75, -65.5], [-60.52999999999997, -64.97], [-60.0, -64.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 18.43377174655268}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 11.196696601292293}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-7.045441523467048, -5.654043847937942, -4.724495550954771, -5.698465993063735]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-1.8036055579387948, -1.2572920972328916, -0.6258085291572684, -5.204205407817369]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [10.223950064683647, 11.345336006493426, 12.115135333907558, 8.60023851838755]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [16.489772926651767, 15.315868293809046, 18.43377174655268, 10.223048019815167]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5972579537536262, 1.781290729159064, 1.8958358899886958, 1.403463674916873]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.170365405405005, 2.2611016739885024, 2.6861471083713653, 1.5373442082205615]}}