{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:23:23.050178", "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-Sep-24_to_2022-Sep-26_125.0_-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": 2022090002564}, "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": "September 24 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 26 2022"}, "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": "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": 93836.98777460062}, "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": ["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": 125.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "125.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 111.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 128.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -67.5}, "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": [[[[110.75, -67.5], [110.97, -66.97], [111.5, -66.75], [111.75, -66.85], [112.0, -66.75], [112.25, -66.85], [112.32, -66.82], [112.35, -66.75], [112.25, -66.5], [112.47, -65.97], [113.0, -65.75], [113.25, -65.85], [113.5, -65.75], [113.75, -65.85], [114.0, -65.75], [114.25, -65.85], [114.5, -65.75], [114.75, -65.85], [115.0, -65.75], [115.25, -65.85], [115.5, -65.75], [115.75, -65.85], [116.0, -65.75], [116.53, -65.97], [116.68, -66.32], [116.75, -66.35], [117.0, -66.25], [117.25, -66.35], [117.5, -66.25], [117.75, -66.35], [118.0, -66.25], [118.25, -66.35], [118.5, -66.25], [118.75, -66.35], [118.82, -66.32], [118.97, -65.97], [119.5, -65.75], [119.75, -65.85], [120.0, -65.75], [120.25, -65.85], [120.5, -65.75], [120.75, -65.85], [121.0, -65.75], [121.25, -65.85], [121.32, -65.82], [121.47, -65.47], [122.0, -65.25], [122.25, -65.35], [122.5, -65.25], [122.75, -65.35], [123.0, -65.25], [123.25, -65.35], [123.32, -65.32], [123.47, -64.97], [124.0, -64.75], [124.25, -64.85], [124.5, -64.75], [124.75, -64.85], [125.0, -64.75], [125.25, -64.85], [125.5, -64.75], [125.75, -64.85], [126.0, -64.75], [126.25, -64.85], [126.5, -64.75], [126.75, -64.85], [127.0, -64.75], [127.25, -64.85], [127.5, -64.75], [127.75, -64.85], [128.0, -64.75], [128.53, -64.97], [128.75, -65.5], [128.53, -66.03], [128.0, -66.25], [128.53, -66.47], [128.75, -67.0], [128.53, -67.53], [128.18, -67.68], [128.03, -68.03], [127.5, -68.25], [126.97, -68.03], [126.82, -67.68], [126.75, -67.65], [126.5, -67.75], [126.25, -67.65], [126.0, -67.75], [125.75, -67.65], [125.5, -67.75], [125.25, -67.65], [125.0, -67.75], [124.75, -67.65], [124.5, -67.75], [124.25, -67.65], [124.0, -67.75], [123.75, -67.65], [123.5, -67.75], [123.25, -67.65], [123.0, -67.75], [122.75, -67.65], [122.5, -67.75], [122.25, -67.65], [122.0, -67.75], [121.75, -67.65], [121.5, -67.75], [121.25, -67.65], [121.0, -67.75], [120.75, -67.65], [120.5, -67.75], [120.25, -67.65], [120.18, -67.68], [120.03, -68.03], [119.5, -68.25], [119.25, -68.15], [119.0, -68.25], [118.75, -68.15], [118.5, -68.25], [118.25, -68.15], [118.0, -68.25], [117.75, -68.15], [117.5, -68.25], [117.25, -68.15], [117.0, -68.25], [116.75, -68.15], [116.5, -68.25], [116.25, -68.15], [116.0, -68.25], [115.75, -68.15], [115.5, -68.25], [115.25, -68.15], [115.0, -68.25], [114.75, -68.15], [114.5, -68.25], [114.25, -68.15], [114.0, -68.25], [113.75, -68.15], [113.5, -68.25], [113.25, -68.15], [113.0, -68.25], [112.75, -68.15], [112.5, -68.25], [112.25, -68.15], [112.0, -68.25], [111.75, -68.15], [111.5, -68.25], [110.97, -68.03], [110.75, -67.5]], [[127.75, -66.15], [127.5, -66.25], [127.75, -66.35], [128.0, -66.25], [127.75, -66.15]], [[127.25, -66.15], [127.0, -66.25], [127.25, -66.35], [127.5, -66.25], [127.25, -66.15]], [[126.75, -66.15], [126.5, -66.25], [126.75, -66.35], [127.0, -66.25], [126.75, -66.15]], [[126.25, -66.15], [126.0, -66.25], [126.25, -66.35], [126.5, -66.25], [126.25, -66.15]], [[125.75, -66.15], [125.5, -66.25], [125.75, -66.35], [126.0, -66.25], [125.75, -66.15]], [[125.25, -66.15], [125.18, -66.18], [125.13, -66.3], [125.25, -66.35], [125.5, -66.25], [125.25, -66.15]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Antarctica"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-09-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[111.5, -68.25], [110.97, -68.03], [110.75, -67.5], [110.97, -66.97], [111.5, -66.75], [111.75, -66.85], [112.0, -66.75], [112.25, -66.85], [112.32, -66.82], [112.35, -66.75], [112.25, -66.5], [112.47, -65.97], [113.0, -65.75], [113.25, -65.85], [113.5, -65.75], [113.75, -65.85], [114.0, -65.75], [114.25, -65.85], [114.5, -65.75], [114.75, -65.85], [115.0, -65.75], [115.25, -65.85], [115.5, -65.75], [115.75, -65.85], [116.0, -65.75], [116.53, -65.97], [116.68, -66.32], [116.75, -66.35], [117.0, -66.25], [117.25, -66.35], [117.5, -66.25], [117.75, -66.35], [118.0, -66.25], [118.25, -66.35], [118.5, -66.25], [118.75, -66.35], [118.82, -66.32], [118.97, -65.97], [119.5, -65.75], [119.75, -65.85], [120.0, -65.75], [120.25, -65.85], [120.5, -65.75], [120.75, -65.85], [121.0, -65.75], [121.25, -65.85], [121.32, -65.82], [121.47, -65.47], [122.0, -65.25], [122.25, -65.35], [122.5, -65.25], [122.75, -65.35], [123.0, -65.25], [123.25, -65.35], [123.32, -65.32], [123.47, -64.97], [124.0, -64.75], [124.25, -64.85], [124.5, -64.75], [124.75, -64.85], [125.0, -64.75], [125.25, -64.85], [125.5, -64.75], [125.75, -64.85], [126.0, -64.75], [126.25, -64.85], [126.5, -64.75], [126.75, -64.85], [127.0, -64.75], [127.25, -64.85], [127.5, -64.75], [127.75, -64.85], [128.0, -64.75], [128.53, -64.97], [128.75, -65.5], [128.53, -66.03], [128.0, -66.25], [128.53, -66.47], [128.75, -67.0], [128.53, -67.53], [128.18, -67.68], [128.03, -68.03], [127.5, -68.25], [126.97, -68.03], [126.82, -67.68], [126.75, -67.65], [126.5, -67.75], [126.25, -67.65], [126.0, -67.75], [125.75, -67.65], [125.5, -67.75], [125.25, -67.65], [125.0, -67.75], [124.75, -67.65], [124.5, -67.75], [124.25, -67.65], [124.0, -67.75], [123.75, -67.65], [123.5, -67.75], [123.25, -67.65], [123.0, -67.75], [122.75, -67.65], [122.5, -67.75], [122.25, -67.65], [122.0, -67.75], [121.75, -67.65], [121.5, -67.75], [121.25, -67.65], [121.0, -67.75], [120.75, -67.65], [120.5, -67.75], [120.25, -67.65], [120.18, -67.68], [120.03, -68.03], [119.5, -68.25], [119.25, -68.15], [119.0, -68.25], [118.75, -68.15], [118.5, -68.25], [118.25, -68.15], [118.0, -68.25], [117.75, -68.15], [117.5, -68.25], [117.25, -68.15], [117.0, -68.25], [116.75, -68.15], [116.5, -68.25], [116.25, -68.15], [116.0, -68.25], [115.75, -68.15], [115.5, -68.25], [115.25, -68.15], [115.0, -68.25], [114.75, -68.15], [114.5, -68.25], [114.25, -68.15], [114.0, -68.25], [113.75, -68.15], [113.5, -68.25], [113.25, -68.15], [113.0, -68.25], [112.75, -68.15], [112.5, -68.25], [112.25, -68.15], [112.0, -68.25], [111.75, -68.15], [111.5, -68.25]], [[127.75, -66.15], [127.5, -66.25], [127.75, -66.35], [128.0, -66.25], [127.75, -66.15]], [[127.25, -66.15], [127.0, -66.25], [127.25, -66.35], [127.5, -66.25], [127.25, -66.15]], [[126.75, -66.15], [126.5, -66.25], [126.75, -66.35], [127.0, -66.25], [126.75, -66.15]], [[126.25, -66.15], [126.0, -66.25], [126.25, -66.35], [126.5, -66.25], [126.25, -66.15]], [[125.75, -66.15], [125.5, -66.25], [125.75, -66.35], [126.0, -66.25], [125.75, -66.15]], [[125.25, -66.15], [125.18, -66.18], [125.13, -66.3], [125.25, -66.35], [125.5, -66.25], [125.25, -66.15]]]]}, "2022-09-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[111.5, -68.25], [110.97, -68.03], [110.75, -67.5], [110.97, -66.97], [111.5, -66.75], [111.75, -66.85], [112.0, -66.75], [112.25, -66.85], [112.32, -66.82], [112.35, -66.75], [112.25, -66.5], [112.47, -65.97], [113.0, -65.75], [113.25, -65.85], [113.5, -65.75], [113.75, -65.85], [114.0, -65.75], [114.25, -65.85], [114.5, -65.75], [114.75, -65.85], [115.0, -65.75], [115.25, -65.85], [115.5, -65.75], [115.75, -65.85], [116.0, -65.75], [116.53, -65.97], [116.68, -66.32], [116.75, -66.35], [117.0, -66.25], [117.25, -66.35], [117.5, -66.25], [117.75, -66.35], [118.0, -66.25], [118.25, -66.35], [118.5, -66.25], [118.75, -66.35], [118.82, -66.32], [118.97, -65.97], [119.5, -65.75], [119.75, -65.85], [120.0, -65.75], [120.25, -65.85], [120.5, -65.75], [120.75, -65.85], [121.0, -65.75], [121.25, -65.85], [121.32, -65.82], [121.47, -65.47], [122.0, -65.25], [122.25, -65.35], [122.5, -65.25], [122.75, -65.35], [123.0, -65.25], [123.25, -65.35], [123.32, -65.32], [123.47, -64.97], [124.0, -64.75], [124.25, -64.85], [124.5, -64.75], [124.75, -64.85], [125.0, -64.75], [125.25, -64.85], [125.5, -64.75], [125.75, -64.85], [126.0, -64.75], [126.25, -64.85], [126.5, -64.75], [126.75, -64.85], [127.0, -64.75], [127.25, -64.85], [127.5, -64.75], [127.75, -64.85], [128.0, -64.75], [128.53, -64.97], [128.75, -65.5], [128.53, -66.03], [128.0, -66.25], [128.53, -66.47], [128.75, -67.0], [128.53, -67.53], [128.18, -67.68], [128.03, -68.03], [127.5, -68.25], [126.97, -68.03], [126.82, -67.68], [126.75, -67.65], [126.5, -67.75], [126.25, -67.65], [126.0, -67.75], [125.75, -67.65], [125.5, -67.75], [125.25, -67.65], [125.0, -67.75], [124.75, -67.65], [124.5, -67.75], [124.25, -67.65], [124.0, -67.75], [123.75, -67.65], [123.5, -67.75], [123.25, -67.65], [123.0, -67.75], [122.75, -67.65], [122.5, -67.75], [122.25, -67.65], [122.0, -67.75], [121.75, -67.65], [121.5, -67.75], [121.25, -67.65], [121.0, -67.75], [120.75, -67.65], [120.5, -67.75], [120.25, -67.65], [120.18, -67.68], [120.03, -68.03], [119.5, -68.25], [119.25, -68.15], [119.0, -68.25], [118.75, -68.15], [118.5, -68.25], [118.25, -68.15], [118.0, -68.25], [117.75, -68.15], [117.5, -68.25], [117.25, -68.15], [117.0, -68.25], [116.75, -68.15], [116.5, -68.25], [116.25, -68.15], [116.0, -68.25], [115.75, -68.15], [115.5, -68.25], [115.25, -68.15], [115.0, -68.25], [114.75, -68.15], [114.5, -68.25], [114.25, -68.15], [114.0, -68.25], [113.75, -68.15], [113.5, -68.25], [113.25, -68.15], [113.0, -68.25], [112.75, -68.15], [112.5, -68.25], [112.25, -68.15], [112.0, -68.25], [111.75, -68.15], [111.5, -68.25]], [[127.75, -66.15], [127.5, -66.25], [127.75, -66.35], [128.0, -66.25], [127.75, -66.15]], [[127.25, -66.15], [127.0, -66.25], [127.25, -66.35], [127.5, -66.25], [127.25, -66.15]], [[126.75, -66.15], [126.5, -66.25], [126.75, -66.35], [127.0, -66.25], [126.75, -66.15]], [[126.25, -66.15], [126.0, -66.25], [126.25, -66.35], [126.5, -66.25], [126.25, -66.15]], [[125.75, -66.15], [125.5, -66.25], [125.75, -66.35], [126.0, -66.25], [125.75, -66.15]], [[125.25, -66.15], [125.18, -66.18], [125.13, -66.3], [125.25, -66.35], [125.5, -66.25], [125.25, -66.15]]]]}, "2022-09-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[111.5, -68.25], [110.97, -68.03], [110.75, -67.5], [110.97, -66.97], [111.5, -66.75], [111.75, -66.85], [112.0, -66.75], [112.25, -66.85], [112.32, -66.82], [112.35, -66.75], [112.25, -66.5], [112.47, -65.97], [113.0, -65.75], [113.25, -65.85], [113.5, -65.75], [113.75, -65.85], [114.0, -65.75], [114.25, -65.85], [114.5, -65.75], [114.75, -65.85], [115.0, -65.75], [115.25, -65.85], [115.5, -65.75], [115.75, -65.85], [116.0, -65.75], [116.53, -65.97], [116.68, -66.32], [116.75, -66.35], [117.0, -66.25], [117.25, -66.35], [117.5, -66.25], [117.75, -66.35], [118.0, -66.25], [118.25, -66.35], [118.5, -66.25], [118.75, -66.35], [118.82, -66.32], [118.97, -65.97], [119.5, -65.75], [119.75, -65.85], [120.0, -65.75], [120.25, -65.85], [120.5, -65.75], [120.75, -65.85], [121.0, -65.75], [121.25, -65.85], [121.32, -65.82], [121.47, -65.47], [122.0, -65.25], [122.25, -65.35], [122.5, -65.25], [122.75, -65.35], [123.0, -65.25], [123.25, -65.35], [123.32, -65.32], [123.47, -64.97], [124.0, -64.75], [124.25, -64.85], [124.5, -64.75], [124.75, -64.85], [125.0, -64.75], [125.25, -64.85], [125.5, -64.75], [125.75, -64.85], [126.0, -64.75], [126.25, -64.85], [126.5, -64.75], [126.75, -64.85], [127.0, -64.75], [127.25, -64.85], [127.5, -64.75], [127.75, -64.85], [128.0, -64.75], [128.53, -64.97], [128.75, -65.5], [128.53, -66.03], [128.0, -66.25], [128.53, -66.47], [128.75, -67.0], [128.53, -67.53], [128.18, -67.68], [128.03, -68.03], [127.5, -68.25], [126.97, -68.03], [126.82, -67.68], [126.75, -67.65], [126.5, -67.75], [126.25, -67.65], [126.0, -67.75], [125.75, -67.65], [125.5, -67.75], [125.25, -67.65], [125.0, -67.75], [124.75, -67.65], [124.5, -67.75], [124.25, -67.65], [124.0, -67.75], [123.75, -67.65], [123.5, -67.75], [123.25, -67.65], [123.0, -67.75], [122.75, -67.65], [122.5, -67.75], [122.25, -67.65], [122.0, -67.75], [121.75, -67.65], [121.5, -67.75], [121.25, -67.65], [121.0, -67.75], [120.75, -67.65], [120.5, -67.75], [120.25, -67.65], [120.18, -67.68], [120.03, -68.03], [119.5, -68.25], [119.25, -68.15], [119.0, -68.25], [118.75, -68.15], [118.5, -68.25], [118.25, -68.15], [118.0, -68.25], [117.75, -68.15], [117.5, -68.25], [117.25, -68.15], [117.0, -68.25], [116.75, -68.15], [116.5, -68.25], [116.25, -68.15], [116.0, -68.25], [115.75, -68.15], [115.5, -68.25], [115.25, -68.15], [115.0, -68.25], [114.75, -68.15], [114.5, -68.25], [114.25, -68.15], [114.0, -68.25], [113.75, -68.15], [113.5, -68.25], [113.25, -68.15], [113.0, -68.25], [112.75, -68.15], [112.5, -68.25], [112.25, -68.15], [112.0, -68.25], [111.75, -68.15], [111.5, -68.25]], [[127.75, -66.15], [127.5, -66.25], [127.75, -66.35], [128.0, -66.25], [127.75, -66.15]], [[127.25, -66.15], [127.0, -66.25], [127.25, -66.35], [127.5, -66.25], [127.25, -66.15]], [[126.75, -66.15], [126.5, -66.25], [126.75, -66.35], [127.0, -66.25], [126.75, -66.15]], [[126.25, -66.15], [126.0, -66.25], [126.25, -66.35], [126.5, -66.25], [126.25, -66.15]], [[125.75, -66.15], [125.5, -66.25], [125.75, -66.35], [126.0, -66.25], [125.75, -66.15]], [[125.25, -66.15], [125.18, -66.18], [125.13, -66.3], [125.25, -66.35], [125.5, -66.25], [125.25, -66.15]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 10.55609517134522}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 7.295374199900356}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-9.855483736998963, -7.909487542289924, -9.930660147130482]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-5.376383021965864, -4.082682399285943, -5.647713946553438]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [6.704283000747073, 8.577606294008012, 6.604233304945977]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [8.448798711117888, 10.55609517134522, 8.238777692767513]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4991070244373423, 1.9359428245358392, 1.4838189596567681]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.7805723986483695, 2.093077486884753, 1.7950093739566497]}}