{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:49:44.066041", "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": "2012-Feb-17_to_2012-Feb-19_290.0_55.5"}, "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": 2012020002362}, "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": "February 17 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 19 2012"}, "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": 79246.33603858654}, "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": ["Canada"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["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": []}, "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": 55.5}, "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": 290.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "290.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 288.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 294.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 53.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 57.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-02-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-71.53, 56.03], [-71.18, 56.18], [-71.03, 56.53], [-70.5, 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56.18], [-71.03, 56.53], [-70.5, 56.75], [-70.25, 56.65], [-70.0, 56.75], [-69.5, 56.54], [-69.0, 56.75], [-68.75, 56.65], [-68.5, 56.75], [-68.25, 56.65], [-68.0, 56.75], [-67.75, 56.65], [-67.5, 56.75], [-67.25, 56.65], [-67.18, 56.68], [-67.03, 57.03], [-66.68, 57.18], [-66.53, 57.53], [-66.0, 57.75], [-65.47, 57.53], [-65.25, 57.0], [-65.35, 56.75], [-65.25, 56.5], [-65.35, 56.25], [-65.25, 56.0], [-65.35, 55.75], [-65.32, 55.68], [-64.97, 55.53], [-64.75, 55.0], [-64.97, 54.47], [-65.5, 54.25], [-65.75, 54.35], [-66.0, 54.25], [-66.5, 54.46], [-66.82, 54.32], [-66.97, 53.97], [-67.32, 53.82], [-67.47, 53.47], [-68.0, 53.25], [-68.25, 53.35], [-68.5, 53.25], [-68.75, 53.35], [-69.0, 53.25], [-69.25, 53.35], [-69.5, 53.25], [-70.03, 53.47], [-70.18, 53.82], [-70.25, 53.85], [-70.5, 53.75], [-71.03, 53.97], [-71.18, 54.32], [-71.53, 54.47], [-71.75, 55.0], [-71.65, 55.25], [-71.75, 55.5], [-71.53, 56.03]]]]}, "2012-02-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": 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amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 16.005687434073224}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 12.645030361737017}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-8.329416725854742, -7.8929136092032195, -10.604920503012238]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-6.44807900158338, -6.0089567052767165, -9.317090351811714]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [13.47522464630959, 13.667264586463304, 10.792601852438164]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [16.005687434073224, 15.709811013092207, 12.34439769812181]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.8379913271899584, 1.8697466891519825, 1.493021635511756]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.05894468384626, 2.034639548880065, 1.6549124381283526]}}