{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:45:34.828294", "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": "2010-Aug-27_to_2010-Sep-02_302.5_74.5"}, "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": 2010080002890}, "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": "August 27 2010"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 02 2010"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 7}, "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": 80543.5045781328}, "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": ["Greenland"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Greenland/Iceland", "N.E.North-America"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["North America"]}, "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": ["Baffin Bay"]}, "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": 74.5}, "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": 302.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "302.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 284.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 303.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 73.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 78.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2010-08-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-74.03, 78.53], [-73.5, 78.75], [-73.25, 78.65], [-73.0, 78.75], [-72.75, 78.65], [-72.5, 78.75], [-71.97, 78.53], [-71.75, 78.0], [-71.97, 77.47], [-72.32, 77.32], [-72.47, 76.97], [-73.0, 76.75], [-73.25, 76.85], [-73.5, 76.75], [-74.03, 76.97], [-74.25, 77.5], [-74.15, 77.75], [-74.25, 78.0], [-74.03, 78.53]]]]}, "2010-08-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-58.03, 73.97], [-58.25, 74.5], [-58.03, 75.03], [-57.5, 75.25], [-56.97, 75.03], [-56.75, 74.5], [-56.97, 73.97], [-57.5, 73.75], [-58.03, 73.97]]], [[[-62.53, 76.03], [-62.0, 76.25], [-61.75, 76.15], [-61.5, 76.25], [-61.25, 76.15], [-61.0, 76.25], [-60.75, 76.15], [-60.5, 76.25], [-60.25, 76.15], [-60.0, 76.25], [-59.47, 76.03], [-59.25, 75.5], [-59.35, 75.25], [-59.25, 75.0], [-59.47, 74.47], [-60.0, 74.25], [-60.53, 74.47], [-60.68, 74.82], [-60.75, 74.85], [-61.0, 74.75], [-61.25, 74.85], [-61.5, 74.75], [-61.75, 74.85], [-62.0, 74.75], [-62.53, 74.97], [-62.75, 75.5], [-62.53, 76.03]]], [[[-74.75, 78.65], [-74.5, 78.75], [-74.25, 78.65], [-74.0, 78.75], [-73.75, 78.65], [-73.5, 78.75], [-73.25, 78.65], [-73.0, 78.75], [-72.75, 78.65], [-72.5, 78.75], [-71.97, 78.53], [-71.75, 78.0], [-71.85, 77.75], [-71.82, 77.68], [-71.75, 77.65], [-71.5, 77.75], [-70.97, 77.53], [-70.75, 77.0], [-70.97, 76.47], [-71.32, 76.32], [-71.35, 76.25], [-71.32, 76.18], [-70.97, 76.03], [-70.75, 75.5], [-70.97, 74.97], [-71.5, 74.75], [-71.75, 74.85], [-72.0, 74.75], [-72.25, 74.85], [-72.5, 74.75], [-72.75, 74.85], [-73.0, 74.75], [-73.53, 74.97], [-73.68, 75.32], [-74.03, 75.47], [-74.25, 76.0], [-74.15, 76.25], [-74.18, 76.32], [-74.53, 76.47], [-74.68, 76.82], [-74.75, 76.85], [-75.0, 76.75], [-75.53, 76.97], [-75.75, 77.5], [-75.65, 77.75], [-75.75, 78.0], [-75.53, 78.53], [-75.0, 78.75], [-74.75, 78.65]]]]}, "2010-08-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-65.25, 76.15], [-65.0, 76.25], [-64.75, 76.15], [-64.5, 76.25], [-64.25, 76.15], [-64.0, 76.25], [-63.75, 76.15], [-63.5, 76.25], [-63.25, 76.15], [-63.0, 76.25], [-62.75, 76.15], [-62.5, 76.25], [-62.25, 76.15], [-62.0, 76.25], [-61.75, 76.15], [-61.5, 76.25], [-61.25, 76.15], [-61.0, 76.25], [-60.75, 76.15], [-60.5, 76.25], [-60.25, 76.15], [-60.0, 76.25], [-59.75, 76.15], [-59.5, 76.25], [-58.97, 76.03], [-58.82, 75.68], [-58.75, 75.65], [-58.5, 75.75], [-57.97, 75.53], [-57.82, 75.18], [-57.75, 75.15], [-57.5, 75.25], [-57.25, 75.15], [-57.0, 75.25], [-56.47, 75.03], [-56.32, 74.68], [-55.97, 74.53], [-55.75, 74.0], [-55.97, 73.47], [-56.5, 73.25], [-56.75, 73.35], [-57.0, 73.25], [-57.25, 73.35], [-57.32, 73.32], [-57.47, 72.97], [-58.0, 72.75], [-58.5, 72.96], [-59.0, 72.75], [-59.53, 72.97], [-59.68, 73.32], [-59.75, 73.35], [-60.0, 73.25], [-60.25, 73.35], [-60.5, 73.25], [-61.03, 73.47], [-61.18, 73.82], [-61.25, 73.85], [-61.5, 73.75], [-61.75, 73.85], [-62.0, 73.75], [-62.25, 73.85], [-62.5, 73.75], [-63.03, 73.97], [-63.18, 74.32], [-63.25, 74.35], [-63.5, 74.25], [-63.75, 74.35], [-64.0, 74.25], [-64.25, 74.35], [-64.5, 74.25], [-64.75, 74.35], [-65.0, 74.25], [-65.25, 74.35], [-65.5, 74.25], [-65.75, 74.35], [-66.0, 74.25], [-66.53, 74.47], [-66.75, 75.0], [-66.53, 75.53], [-66.18, 75.68], [-66.03, 76.03], [-65.5, 76.25], [-65.25, 76.15]]], [[[-75.0, 78.75], [-74.75, 78.65], [-74.5, 78.75], [-74.25, 78.65], [-74.0, 78.75], [-73.75, 78.65], [-73.5, 78.75], [-73.25, 78.65], [-73.0, 78.75], [-72.75, 78.65], [-72.5, 78.75], [-71.97, 78.53], [-71.75, 78.0], [-71.85, 77.75], [-71.82, 77.68], [-71.75, 77.65], [-71.5, 77.75], [-70.97, 77.53], [-70.82, 77.18], [-70.75, 77.15], [-70.5, 77.25], [-70.25, 77.15], [-70.0, 77.25], [-69.47, 77.03], [-69.3, 76.63], [-69.0, 76.75], [-68.75, 76.65], [-68.5, 76.75], [-67.97, 76.53], [-67.82, 76.18], [-67.47, 76.03], [-67.25, 75.5], [-67.47, 74.97], [-68.0, 74.75], [-68.25, 74.85], [-68.5, 74.75], [-68.75, 74.85], [-69.0, 74.75], [-69.53, 74.97], [-69.75, 75.5], [-69.65, 75.75], [-69.7, 75.88], [-70.0, 75.75], [-70.25, 75.85], [-70.32, 75.82], [-70.47, 75.47], [-70.82, 75.32], [-70.97, 74.97], [-71.5, 74.75], [-71.75, 74.85], [-72.0, 74.75], [-72.25, 74.85], [-72.5, 74.75], [-72.75, 74.85], [-73.0, 74.75], [-73.53, 74.97], [-73.68, 75.32], [-74.03, 75.47], [-74.25, 76.0], [-74.15, 76.25], [-74.18, 76.32], [-74.53, 76.47], [-74.68, 76.82], [-74.75, 76.85], [-75.0, 76.75], [-75.53, 76.97], [-75.75, 77.5], [-75.65, 77.75], [-75.75, 78.0], [-75.53, 78.53], [-75.0, 78.75]]]]}, "2010-08-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-75.53, 78.53], [-75.0, 78.75], [-74.75, 78.65], [-74.5, 78.75], [-74.25, 78.65], [-74.0, 78.75], [-73.75, 78.65], [-73.5, 78.75], [-73.25, 78.65], [-73.0, 78.75], [-72.75, 78.65], [-72.5, 78.75], [-71.97, 78.53], [-71.75, 78.0], [-71.85, 77.75], [-71.82, 77.68], [-71.75, 77.65], [-71.68, 77.68], [-71.53, 78.03], [-71.0, 78.25], [-70.47, 78.03], [-70.25, 77.5], [-70.37, 77.2], [-70.25, 77.15], [-70.0, 77.25], [-69.47, 77.03], [-69.32, 76.68], [-69.25, 76.65], [-69.0, 76.75], [-68.75, 76.65], [-68.5, 76.75], [-67.97, 76.53], [-67.82, 76.18], [-67.75, 76.15], [-67.5, 76.25], [-67.25, 76.15], [-67.0, 76.25], [-66.75, 76.15], [-66.5, 76.25], [-66.25, 76.15], [-66.0, 76.25], [-65.75, 76.15], [-65.5, 76.25], [-65.25, 76.15], [-65.0, 76.25], [-64.75, 76.15], [-64.5, 76.25], [-64.25, 76.15], [-64.0, 76.25], [-63.75, 76.15], [-63.5, 76.25], [-63.25, 76.15], [-63.0, 76.25], [-62.75, 76.15], [-62.5, 76.25], [-62.25, 76.15], [-62.0, 76.25], [-61.75, 76.15], [-61.5, 76.25], [-61.25, 76.15], [-61.0, 76.25], [-60.75, 76.15], [-60.5, 76.25], [-60.25, 76.15], [-60.0, 76.25], [-59.75, 76.15], [-59.5, 76.25], [-58.97, 76.03], [-58.82, 75.68], [-58.75, 75.65], [-58.5, 75.75], [-57.97, 75.53], [-57.82, 75.18], [-57.75, 75.15], [-57.5, 75.25], [-57.25, 75.15], [-57.0, 75.25], [-56.47, 75.03], [-56.32, 74.68], [-55.97, 74.53], [-55.75, 74.0], [-55.97, 73.47], [-56.5, 73.25], [-56.75, 73.35], [-57.0, 73.25], [-57.25, 73.35], [-57.32, 73.32], [-57.47, 72.97], [-58.0, 72.75], [-58.5, 72.96], [-59.0, 72.75], [-59.53, 72.97], [-59.68, 73.32], [-59.75, 73.35], [-60.0, 73.25], [-60.25, 73.35], [-60.5, 73.25], [-61.03, 73.47], [-61.18, 73.82], [-61.25, 73.85], [-61.5, 73.75], [-61.75, 73.85], [-62.0, 73.75], [-62.25, 73.85], [-62.5, 73.75], [-63.03, 73.97], [-63.18, 74.32], [-63.25, 74.35], [-63.5, 74.25], [-63.75, 74.35], [-64.0, 74.25], [-64.25, 74.35], [-64.5, 74.25], [-64.75, 74.35], [-65.0, 74.25], [-65.25, 74.35], [-65.5, 74.25], [-65.75, 74.35], [-66.0, 74.25], [-66.53, 74.47], [-66.68, 74.82], [-66.75, 74.85], [-67.0, 74.75], [-67.25, 74.85], [-67.32, 74.82], [-67.47, 74.47], [-68.0, 74.25], [-68.53, 74.47], [-68.68, 74.82], [-68.75, 74.85], [-69.0, 74.75], [-69.25, 74.85], [-69.5, 74.75], [-69.75, 74.85], [-70.0, 74.75], [-70.25, 74.85], [-70.5, 74.75], [-71.0, 74.96], [-71.5, 74.75], [-71.75, 74.85], [-72.0, 74.75], [-72.25, 74.85], [-72.5, 74.75], [-72.75, 74.85], [-73.0, 74.75], [-73.53, 74.97], [-73.68, 75.32], [-74.03, 75.47], [-74.25, 76.0], [-74.15, 76.25], [-74.18, 76.32], [-74.53, 76.47], [-74.68, 76.82], [-74.75, 76.85], [-75.0, 76.75], [-75.53, 76.97], [-75.75, 77.5], [-75.65, 77.75], [-75.75, 78.0], [-75.53, 78.53]]]]}, "2010-08-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-74.25, 77.5], [-74.03, 78.03], [-73.5, 78.25], [-73.25, 78.15], [-73.0, 78.25], [-72.47, 78.03], [-72.32, 77.68], [-72.25, 77.65], [-72.0, 77.75], [-71.75, 77.65], [-71.68, 77.68], [-71.53, 78.03], [-71.0, 78.25], [-70.47, 78.03], [-70.25, 77.5], [-70.37, 77.2], [-70.25, 77.15], [-70.0, 77.25], [-69.47, 77.03], [-69.32, 76.68], [-69.25, 76.65], [-69.0, 76.75], [-68.75, 76.65], [-68.5, 76.75], [-67.97, 76.53], [-67.82, 76.18], [-67.75, 76.15], [-67.5, 76.25], [-67.25, 76.15], [-67.0, 76.25], [-66.75, 76.15], [-66.5, 76.25], [-66.25, 76.15], [-66.0, 76.25], [-65.75, 76.15], [-65.5, 76.25], [-65.25, 76.15], [-65.0, 76.25], [-64.75, 76.15], [-64.5, 76.25], [-64.25, 76.15], [-64.0, 76.25], [-63.75, 76.15], [-63.5, 76.25], [-63.25, 76.15], [-63.0, 76.25], [-62.75, 76.15], [-62.5, 76.25], [-62.25, 76.15], [-62.0, 76.25], [-61.75, 76.15], [-61.5, 76.25], [-61.25, 76.15], [-61.0, 76.25], [-60.75, 76.15], [-60.5, 76.25], [-60.25, 76.15], [-60.0, 76.25], [-59.75, 76.15], [-59.5, 76.25], [-58.97, 76.03], [-58.82, 75.68], [-58.75, 75.65], [-58.5, 75.75], [-57.97, 75.53], [-57.82, 75.18], [-57.75, 75.15], [-57.5, 75.25], [-57.25, 75.15], [-57.0, 75.25], [-56.47, 75.03], [-56.32, 74.68], [-55.97, 74.53], [-55.75, 74.0], [-55.97, 73.47], [-56.5, 73.25], [-56.75, 73.35], [-57.0, 73.25], [-57.25, 73.35], [-57.32, 73.32], [-57.47, 72.97], [-58.0, 72.75], [-58.5, 72.96], [-59.0, 72.75], [-59.53, 72.97], [-59.68, 73.32], [-59.75, 73.35], [-60.0, 73.25], [-60.25, 73.35], [-60.5, 73.25], [-61.03, 73.47], [-61.18, 73.82], [-61.25, 73.85], [-61.5, 73.75], [-61.75, 73.85], [-62.0, 73.75], [-62.25, 73.85], [-62.5, 73.75], [-63.03, 73.97], [-63.18, 74.32], [-63.25, 74.35], [-63.5, 74.25], [-63.75, 74.35], [-64.0, 74.25], [-64.25, 74.35], [-64.5, 74.25], [-64.75, 74.35], [-65.0, 74.25], [-65.25, 74.35], [-65.5, 74.25], [-65.75, 74.35], [-66.0, 74.25], [-66.53, 74.47], [-66.68, 74.82], [-66.75, 74.85], [-67.0, 74.75], [-67.25, 74.85], [-67.32, 74.82], [-67.47, 74.47], [-68.0, 74.25], [-68.53, 74.47], [-68.68, 74.82], [-68.75, 74.85], [-69.0, 74.75], [-69.25, 74.85], [-69.5, 74.75], [-69.75, 74.85], [-70.0, 74.75], [-70.25, 74.85], [-70.5, 74.75], [-71.0, 74.96], [-71.5, 74.75], [-71.75, 74.85], [-72.0, 74.75], [-72.25, 74.85], [-72.5, 74.75], [-73.03, 74.97], [-73.25, 75.5], [-73.15, 75.75], [-73.25, 76.0], [-73.15, 76.25], [-73.18, 76.32], [-73.53, 76.47], [-73.68, 76.82], [-74.03, 76.97], [-74.25, 77.5]]]]}, "2010-09-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-60.53, 75.53], [-60.0, 75.75], [-59.75, 75.65], [-59.5, 75.75], [-59.25, 75.65], [-59.0, 75.75], [-58.47, 75.53], [-58.3, 75.13], [-58.0, 75.25], [-57.75, 75.15], [-57.5, 75.25], [-56.97, 75.03], [-56.75, 74.5], [-56.97, 73.97], [-57.5, 73.75], [-57.75, 73.85], [-58.0, 73.75], [-58.5, 73.96], [-59.0, 73.75], [-59.53, 73.97], [-59.68, 74.32], [-59.75, 74.35], [-60.0, 74.25], [-60.53, 74.47], [-60.75, 75.0], [-60.53, 75.53]]], [[[-63.5, 76.25], [-63.25, 76.15], [-63.0, 76.25], [-62.47, 76.03], [-62.25, 75.5], [-62.35, 75.25], [-62.25, 75.0], [-62.47, 74.47], [-63.0, 74.25], [-63.53, 74.47], [-63.68, 74.82], [-63.75, 74.85], [-64.0, 74.75], [-64.53, 74.97], [-64.75, 75.5], [-64.53, 76.03], [-64.0, 76.25], [-63.75, 76.15], [-63.5, 76.25]]], [[[-70.25, 76.65], [-70.0, 76.75], [-69.75, 76.65], [-69.5, 76.75], [-68.97, 76.53], [-68.82, 76.18], [-68.75, 76.15], [-68.5, 76.25], [-68.25, 76.15], [-68.0, 76.25], [-67.75, 76.15], [-67.5, 76.25], [-67.25, 76.15], [-67.0, 76.25], [-66.75, 76.15], [-66.5, 76.25], [-66.25, 76.15], [-66.0, 76.25], [-65.75, 76.15], [-65.5, 76.25], [-64.97, 76.03], [-64.75, 75.5], [-64.85, 75.25], [-64.75, 75.0], [-64.97, 74.47], [-65.5, 74.25], [-66.03, 74.47], [-66.18, 74.82], [-66.25, 74.85], [-66.5, 74.75], [-66.75, 74.85], [-67.0, 74.75], [-67.25, 74.85], [-67.32, 74.82], [-67.47, 74.47], [-68.0, 74.25], [-68.53, 74.47], [-68.68, 74.82], [-68.75, 74.85], [-69.0, 74.75], [-69.25, 74.85], [-69.5, 74.75], [-69.75, 74.85], [-70.0, 74.75], [-70.25, 74.85], [-70.5, 74.75], [-71.03, 74.97], [-71.25, 75.5], [-71.15, 75.75], [-71.25, 76.0], [-71.03, 76.53], [-70.5, 76.75], [-70.25, 76.65]]], [[[-71.75, 77.5], [-71.53, 78.03], [-71.0, 78.25], [-70.47, 78.03], [-70.25, 77.5], [-70.47, 76.97], [-71.0, 76.75], [-71.53, 76.97], [-71.75, 77.5]]]]}, "2010-09-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-71.03, 74.97], [-71.25, 75.5], [-71.03, 76.03], [-70.5, 76.25], [-70.25, 76.15], [-70.0, 76.25], [-69.75, 76.15], [-69.5, 76.25], [-68.97, 76.03], [-68.75, 75.5], [-68.97, 74.97], [-69.5, 74.75], [-69.75, 74.85], [-70.0, 74.75], [-70.25, 74.85], [-70.5, 74.75], [-71.03, 74.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.407954770249205}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.445238486731592}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [3.471129361794681, 4.271706379468299, 5.004444740211511, 5.105733171458496, 5.217145948140967, 4.490775161261695, 4.152416209215971]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [3.8207341737667093, 5.594632084591979, 6.583246139293067, 6.761784030514889, 6.631416427744796, 5.137116787852165, 4.219161779796593]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.015609191046451, 2.1840805181238045, 2.420079409383246, 2.617504630484985, 2.558018143919051, 1.9941015316746975, 1.8848812768126966]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.4651160789036908, 2.8296246906175497, 3.226932936928165, 3.407954770249205, 3.3211764357272386, 3.059897047934271, 1.9605254320604217]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3846791666796108, 1.4707158545187053, 1.4429821206743187, 1.5481590454938, 1.5074402154947852, 1.233002163103041, 1.2882980347310735]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6432830961506286, 1.7913937710128292, 1.7185811802390585, 1.9197632530306699, 1.8233871608858483, 1.6203338208397418, 1.3452147347435413]}}