{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:25:16.394987", "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-Apr-02_to_2021-Apr-11_167.5_-74.0"}, "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": 2021040001494}, "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": "April 02 2021"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 11 2021"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 10}, "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": 114483.5742587299}, "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"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.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": -74.0}, "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": 167.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "167.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 162.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 172.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -77.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -71.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2021-04-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[161.75, -76.5], [161.97, -75.97], [162.5, -75.75], [162.75, -75.85], [163.0, -75.75], [163.53, -75.97], [163.68, -76.32], [163.75, -76.35], [163.82, -76.32], [163.85, -76.25], [163.75, -76.0], [163.97, -75.47], [164.5, -75.25], [164.75, -75.35], [165.0, -75.25], [165.25, -75.35], [165.5, -75.25], [165.75, -75.35], [166.0, -75.25], [165.47, -75.03], [165.25, -74.5], [165.47, -73.97], [166.0, -73.75], [166.25, -73.85], [166.5, -73.75], [166.8, -73.87], [166.97, -73.47], [167.5, -73.25], [168.03, -73.47], [168.25, -74.0], [168.03, -74.53], [167.5, -74.75], [167.75, -74.85], [168.0, -74.75], [168.25, -74.85], [168.32, -74.82], [168.47, -74.47], [169.0, -74.25], [169.53, -74.47], [169.75, -75.0], [169.65, -75.25], [169.75, -75.5], [169.65, -75.75], [169.75, -76.0], [169.65, -76.25], [169.75, -76.5], [169.65, -76.75], [169.75, -77.0], [169.53, -77.53], [169.0, -77.75], [168.75, -77.65], [168.5, -77.75], [168.25, -77.65], [168.0, -77.75], [167.75, -77.65], [167.5, -77.75], [167.25, -77.65], [167.0, -77.75], [166.75, -77.65], [166.5, -77.75], [166.25, -77.65], [166.0, -77.75], [165.75, -77.65], [165.68, -77.68], [165.53, -78.03], [165.0, -78.25], [164.75, -78.15], [164.5, -78.25], [163.97, -78.03], [163.82, -77.68], [163.75, -77.65], [163.5, -77.75], [162.97, -77.53], [162.82, -77.18], [162.75, -77.15], [162.5, -77.25], [161.97, -77.03], [161.75, -76.5]], [[166.25, -75.35], [166.32, -75.32], [166.38, -75.2], [166.25, -75.15], [166.0, -75.25], [166.25, -75.35]], [[167.2, -74.62], [167.13, -74.8], [167.25, -74.85], [167.5, -74.75], [167.2, -74.62]]], [[[168.75, -73.5], [168.97, -72.97], [169.5, -72.75], [169.75, -72.85], [170.0, -72.75], [170.53, -72.97], [170.75, -73.5], [170.53, -74.03], [170.0, -74.25], [169.75, -74.15], [169.5, -74.25], [168.97, -74.03], [168.75, -73.5]]]]}, "2021-04-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[161.97, -77.03], [161.75, -76.5], [161.97, -75.97], [162.5, -75.75], [162.75, -75.85], [162.82, -75.82], [162.97, -75.47], [163.5, -75.25], [163.75, -75.35], [164.0, -75.25], [164.25, -75.35], [164.32, -75.32], [164.35, -75.25], [164.25, -75.0], [164.47, -74.47], [164.82, -74.32], [164.97, -73.97], [165.5, -73.75], [165.75, -73.85], [165.82, -73.82], [165.97, -73.47], [166.5, -73.25], [166.75, -73.35], [166.82, -73.32], [166.97, -72.97], [167.5, -72.75], [167.75, -72.85], [168.0, -72.75], [168.25, -72.85], [168.5, -72.75], [168.75, -72.85], [169.0, -72.75], [169.25, -72.85], [169.5, -72.75], [169.75, -72.85], [170.0, -72.75], [170.25, -72.85], [170.5, -72.75], [171.03, -72.97], [171.25, -73.5], [171.03, -74.03], [170.63, -74.2], [170.75, -74.5], [170.53, -75.03], [170.0, -75.25], [169.75, -75.15], [169.68, -75.18], [169.65, -75.25], [169.75, -75.5], [169.65, -75.75], [169.75, -76.0], [169.65, -76.25], [169.75, -76.5], [169.65, -76.75], [169.75, -77.0], [169.53, -77.53], [169.0, -77.75], [168.75, -77.65], [168.5, -77.75], [168.25, -77.65], [168.0, -77.75], [167.75, -77.65], [167.5, -77.75], [167.25, -77.65], [167.0, -77.75], [166.75, -77.65], [166.5, -77.75], [166.25, -77.65], [166.0, -77.75], [165.75, -77.65], [165.68, -77.68], [165.53, -78.03], [165.0, -78.25], [164.75, -78.15], [164.5, -78.25], [163.97, -78.03], [163.82, -77.68], [163.75, -77.65], [163.5, -77.75], [162.97, -77.53], [162.82, -77.18], [162.75, -77.15], [162.5, -77.25], [161.97, -77.03]]]]}, "2021-04-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[161.97, -77.03], [161.75, -76.5], [161.97, -75.97], [162.5, -75.75], [162.75, -75.85], [162.82, -75.82], [162.97, -75.47], [163.5, -75.25], [163.75, -75.35], [164.0, -75.25], [164.25, -75.35], [164.32, -75.32], [164.35, -75.25], [164.25, -75.0], [164.47, -74.47], [164.82, -74.32], [164.97, -73.97], [165.32, -73.82], [165.47, -73.47], [166.0, -73.25], [166.25, -73.35], [166.5, -73.25], [166.75, -73.35], [166.82, -73.32], [166.97, -72.97], [167.5, -72.75], [167.75, -72.85], [168.0, -72.75], [168.25, -72.85], [168.5, -72.75], [168.75, -72.85], [169.0, -72.75], [169.25, -72.85], [169.32, -72.82], [169.47, -72.47], [169.82, -72.32], [169.97, -71.97], [170.5, -71.75], [170.75, -71.85], [171.0, -71.75], [171.53, -71.97], [171.75, -72.5], [171.65, -72.75], [171.75, -73.0], [171.53, -73.53], [171.18, -73.68], [171.15, -73.75], [171.25, -74.0], [171.03, -74.53], [170.68, -74.68], [170.53, -75.03], [170.0, -75.25], [169.75, -75.15], [169.68, -75.18], [169.65, -75.25], [169.75, -75.5], [169.65, -75.75], [169.75, -76.0], [169.65, -76.25], [169.75, -76.5], [169.65, -76.75], [169.75, -77.0], [169.53, -77.53], [169.0, -77.75], [168.75, -77.65], [168.5, -77.75], [168.25, -77.65], [168.0, -77.75], [167.75, -77.65], [167.5, -77.75], [167.25, -77.65], [167.0, -77.75], [166.75, -77.65], [166.5, -77.75], [166.25, -77.65], [166.0, -77.75], [165.75, -77.65], [165.68, -77.68], [165.53, -78.03], [165.0, -78.25], [164.75, -78.15], [164.5, -78.25], [163.97, -78.03], [163.82, -77.68], [163.75, -77.65], [163.5, -77.75], [162.97, -77.53], [162.82, -77.18], [162.75, -77.15], [162.5, -77.25], [161.97, -77.03]]]]}, "2021-04-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[162.97, -76.53], [162.75, -76.0], [162.97, -75.47], [163.5, -75.25], [163.75, -75.35], [164.0, -75.25], [164.3, -75.37], [164.35, -75.25], [164.25, -75.0], [164.47, -74.47], [164.82, -74.32], [164.97, -73.97], [165.32, -73.82], [165.47, -73.47], [166.0, -73.25], [166.25, -73.35], [166.32, -73.32], [166.47, -72.97], [167.0, -72.75], [167.25, -72.85], [167.5, -72.75], [167.75, -72.85], [168.0, -72.75], [168.25, -72.85], [168.5, -72.75], [168.75, -72.85], [169.0, -72.75], [169.25, -72.85], [169.32, -72.82], [169.35, -72.75], [169.25, -72.5], [169.47, -71.97], [170.0, -71.75], [170.25, -71.85], [170.32, -71.82], [170.47, -71.47], [171.0, -71.25], [171.53, -71.47], [171.68, -71.82], [172.03, -71.97], [172.25, -72.5], [172.15, -72.75], [172.25, -73.0], [172.15, -73.25], [172.18, -73.32], [172.53, -73.47], [172.68, -73.82], [173.03, -73.97], [173.25, -74.5], [173.15, -74.75], [173.25, -75.0], [173.15, -75.25], [173.25, -75.5], [173.03, -76.03], [172.68, -76.18], [172.53, -76.53], [172.0, -76.75], [171.75, -76.65], [171.5, -76.75], [171.25, -76.65], [171.0, -76.75], [170.75, -76.65], [170.5, -76.75], [170.25, -76.65], [170.0, -76.75], [169.75, -76.65], [169.63, -76.7], [169.75, -77.0], [169.53, -77.53], [169.0, -77.75], [168.75, -77.65], [168.5, -77.75], [168.25, -77.65], [168.0, -77.75], [167.47, -77.53], [167.32, -77.18], [167.25, -77.15], [167.0, -77.25], [166.75, -77.15], [166.5, -77.25], [166.25, -77.15], [166.0, -77.25], [165.75, -77.15], [165.5, -77.25], [165.25, -77.15], [165.0, -77.25], [164.47, -77.03], [164.3, -76.62], [164.0, -76.75], [163.75, -76.65], [163.5, -76.75], [162.97, -76.53]], [[168.82, -76.18], [168.75, -76.15], [168.5, -76.25], [168.75, -76.35], [168.88, -76.3], [168.82, -76.18]], [[168.07, -76.07], [168.18, -76.32], [168.25, -76.35], [168.5, -76.25], [168.07, -76.07]]]]}, "2021-04-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[165.32, -73.82], [165.47, -73.47], [165.82, -73.32], [165.97, -72.97], [166.5, -72.75], [166.75, -72.85], [166.82, -72.82], [166.97, -72.47], [167.5, -72.25], [168.03, -72.47], [168.18, -72.82], [168.25, -72.85], [168.5, -72.75], [168.75, -72.85], [168.82, -72.82], [168.85, -72.75], [168.75, -72.5], [168.97, -71.97], [169.5, -71.75], [169.75, -71.85], [169.82, -71.82], [169.97, -71.47], [170.5, -71.25], [170.75, -71.35], [171.0, -71.25], [171.25, -71.35], [171.5, -71.25], [172.03, -71.47], [172.18, -71.82], [172.53, -71.97], [172.75, -72.5], [172.65, -72.75], [172.75, -73.0], [172.65, -73.25], [172.75, -73.5], [172.65, -73.75], [172.68, -73.82], [173.03, -73.97], [173.25, -74.5], [173.15, -74.75], [173.25, -75.0], [173.15, -75.25], [173.25, -75.5], [173.03, -76.03], [172.68, -76.18], [172.53, -76.53], [172.0, -76.75], [171.75, -76.65], [171.5, -76.75], [171.25, -76.65], [171.0, -76.75], [170.75, -76.65], [170.5, -76.75], [170.25, -76.65], [170.0, -76.75], [169.75, -76.65], [169.63, -76.7], [169.75, -77.0], [169.53, -77.53], [169.0, -77.75], [168.75, -77.65], [168.5, -77.75], [168.25, -77.65], [168.0, -77.75], [167.47, -77.53], [167.25, -77.0], [167.47, -76.47], [168.0, -76.25], [168.25, -76.35], [168.5, -76.25], [168.0, -76.04], [167.5, -76.25], [167.25, -76.15], [167.0, -76.25], [166.75, -76.15], [166.5, -76.25], [165.97, -76.03], [165.82, -75.68], [165.75, -75.65], [165.5, -75.75], [165.25, -75.65], [165.0, -75.75], [164.47, -75.53], [164.25, -75.0], [164.47, -74.47], [164.82, -74.32], [164.97, -73.97], [165.32, -73.82]], [[168.75, -76.35], [168.88, -76.3], [168.82, -76.18], [168.75, -76.15], [168.5, -76.25], [168.75, -76.35]]]]}, "2021-04-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[164.97, -73.97], [165.32, -73.82], [165.47, -73.47], [165.82, -73.32], [165.97, -72.97], [166.5, -72.75], [166.75, -72.85], [166.82, -72.82], [166.97, -72.47], [167.32, -72.32], [167.47, -71.97], [168.0, -71.75], [168.25, -71.85], [168.5, -71.75], [168.75, -71.85], [169.0, -71.75], [169.25, -71.85], [169.32, -71.82], [169.47, -71.47], [170.0, -71.25], [170.25, -71.35], [170.5, -71.25], [170.75, -71.35], [171.0, -71.25], [171.25, -71.35], [171.5, -71.25], [172.03, -71.47], [172.18, -71.82], [172.53, -71.97], [172.75, -72.5], [172.65, -72.75], [172.68, -72.82], [173.03, -72.97], [173.25, -73.5], [173.04, -74.0], [173.25, -74.5], [173.15, -74.75], [173.25, -75.0], [173.15, -75.25], [173.25, -75.5], [173.03, -76.03], [172.68, -76.18], [172.53, -76.53], [172.0, -76.75], [171.75, -76.65], [171.5, -76.75], [171.25, -76.65], [171.0, -76.75], [170.75, -76.65], [170.5, -76.75], [170.25, -76.65], [170.0, -76.75], [169.75, -76.65], [169.5, -76.75], [168.97, -76.53], [168.82, -76.18], [168.75, -76.15], [168.5, -76.25], [168.0, -76.04], [167.5, -76.25], [167.25, -76.15], [167.0, -76.25], [166.75, -76.15], [166.5, -76.25], [165.97, -76.03], [165.82, -75.68], [165.75, -75.65], [165.5, -75.75], [164.97, -75.53], [164.75, -75.0], [164.85, -74.75], [164.75, -74.5], [164.97, -73.97]]]]}, "2021-04-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[165.75, -72.5], [165.97, -71.97], [166.32, -71.82], [166.47, -71.47], [167.0, -71.25], [167.25, -71.35], [167.5, -71.25], [167.75, -71.35], [168.0, -71.25], [168.25, -71.35], [168.5, -71.25], [169.03, -71.47], [169.18, -71.82], [169.25, -71.85], [169.32, -71.82], [169.47, -71.47], [170.0, -71.25], [170.25, -71.35], [170.5, -71.25], [170.75, -71.35], [171.0, -71.25], [171.25, -71.35], [171.5, -71.25], [172.03, -71.47], [172.18, -71.82], [172.53, -71.97], [172.75, -72.5], [172.65, -72.75], [172.68, -72.82], [173.03, -72.97], [173.25, -73.5], [173.03, -74.03], [172.5, -74.25], [172.25, -74.15], [172.0, -74.25], [171.75, -74.15], [171.5, -74.25], [171.25, -74.15], [171.0, -74.25], [170.75, -74.15], [170.5, -74.25], [170.25, -74.15], [170.0, -74.25], [169.75, -74.15], [169.68, -74.18], [169.53, -74.53], [169.0, -74.75], [168.75, -74.65], [168.5, -74.75], [168.25, -74.65], [168.0, -74.75], [167.75, -74.65], [167.5, -74.75], [167.25, -74.65], [167.0, -74.75], [166.75, -74.65], [166.5, -74.75], [166.25, -74.65], [166.0, -74.75], [165.47, -74.53], [165.25, -74.0], [165.47, -73.47], [165.82, -73.32], [165.96, -73.0], [165.75, -72.5]]]]}, "2021-04-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[171.25, -73.5], [171.47, -72.97], [172.0, -72.75], [172.25, -72.85], [172.5, -72.75], [173.03, -72.97], [173.25, -73.5], [173.03, -74.03], [172.5, -74.25], [172.25, -74.15], [172.0, -74.25], [171.47, -74.03], [171.25, -73.5]]], [[[167.25, -71.35], [167.5, -71.25], [167.75, -71.35], [168.0, -71.25], [168.25, -71.35], [168.5, -71.25], [169.03, -71.47], [169.18, -71.82], [169.25, -71.85], [169.32, -71.82], [169.47, -71.47], [170.0, -71.25], [170.25, -71.35], [170.5, -71.25], [171.03, -71.47], [171.25, -72.0], [171.03, -72.53], [170.68, -72.68], [170.53, -73.03], [170.0, -73.25], [169.75, -73.15], [169.5, -73.25], [169.25, -73.15], [169.0, -73.25], [168.75, -73.15], [168.5, -73.25], [168.25, -73.15], [168.0, -73.25], [167.5, -73.04], [167.0, -73.25], [166.75, -73.15], [166.5, -73.25], [165.97, -73.03], [165.75, -72.5], [165.97, -71.97], [166.32, -71.82], [166.47, -71.47], [167.0, -71.25], [167.25, -71.35]]]]}, "2021-04-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[167.0, -71.25], [167.25, -71.35], [167.5, -71.25], [167.75, -71.35], [168.0, -71.25], [168.25, -71.35], [168.5, -71.25], [169.03, -71.47], [169.25, -72.0], [169.03, -72.53], [168.5, -72.75], [168.25, -72.65], [168.0, -72.75], [167.75, -72.65], [167.68, -72.68], [167.53, -73.03], [167.0, -73.25], [166.75, -73.15], [166.5, -73.25], [165.97, -73.03], [165.75, -72.5], [165.97, -71.97], [166.32, -71.82], [166.47, -71.47], [167.0, -71.25]]]]}, "2021-04-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[166.47, -71.47], [167.0, -71.25], [167.25, -71.35], [167.5, -71.25], [167.75, -71.35], [168.0, -71.25], [168.25, -71.35], [168.5, -71.25], [169.03, -71.47], [169.25, -72.0], [169.03, -72.53], [168.5, -72.75], [168.25, -72.65], [168.0, -72.75], [167.75, -72.65], [167.68, -72.68], [167.53, -73.03], [167.0, -73.25], [166.47, -73.03], [166.25, -72.5], [166.35, -72.25], [166.25, -72.0], [166.47, -71.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 8.711643756965856}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 6.073847687629138}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-13.41221679509124, -13.633227991349315, -14.288655839461342, -14.816215034014817, -14.607540555080334, -14.579004707853414, -16.915218871600757, -20.057035551807047, -22.96387218931571, -21.041201145005914]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-10.27977642272964, -10.998809632660311, -11.863798621576905, -11.79151649586089, -11.728897755935748, -11.694264181261076, -11.956103282651725, -14.172188219311181, -20.306582826471725, -18.752246548774252]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [6.486589331808087, 6.535129764952364, 6.03016550709825, 5.471401269426688, 5.873640659008687, 6.4138221248348115, 5.775079602779083, 6.3596778589248535, 5.596950705445394, 7.080363983697623]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [8.585732720402007, 8.625880048452416, 7.935745209766225, 7.428872670974158, 7.696461251460562, 8.711643756965856, 8.614081493481677, 8.582134047960523, 6.1405383899571575, 7.832858924538556]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.815025364298994, 1.9232434139763934, 1.8196323184639798, 1.6875414162593119, 1.8078183364061926, 1.9149395059646248, 1.6573569274461606, 1.655802105145167, 1.424013326391951, 1.7190595538173947]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.19583839621844, 2.461433775849892, 2.449781238452898, 2.32481191469473, 2.3462117713238286, 2.298062134994225, 2.0550748930470393, 1.9323301764805738, 1.5158994067017757, 1.8722323964029464]}}