{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:51:13.487972", "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-Aug-07_to_2012-Aug-09_354.5_-69.5"}, "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": 2012080001890}, "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 07 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 09 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": 52388.84227630943}, "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", "Southern-Ocean"]}, "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": -69.5}, "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": 354.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "354.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 347.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 357.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -72.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -69.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-08-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-13.03, -71.53], [-13.25, -71.0], [-13.03, -70.47], [-12.5, -70.25], [-12.25, -70.35], [-12.12, -70.3], [-12.25, -70.0], [-12.03, -69.47], [-11.5, -69.25], [-11.25, -69.35], [-11.0, -69.25], [-10.75, -69.35], [-10.5, -69.25], [-10.25, -69.35], [-10.0, -69.25], [-9.75, -69.35], [-9.5, -69.25], [-9.25, -69.35], [-9.0, -69.25], [-8.75, -69.35], [-8.68, -69.32], [-8.53, -68.97], [-8.0, -68.75], [-7.75, -68.85], [-7.5, -68.75], [-7.25, -68.85], [-7.0, -68.75], [-6.75, -68.85], [-6.5, -68.75], [-6.25, -68.85], [-6.0, -68.75], [-5.75, -68.85], [-5.5, -68.75], [-5.25, -68.85], [-5.0, -68.75], [-4.75, -68.85], [-4.5, -68.75], [-4.25, -68.85], [-4.0, -68.75], [-3.75, -68.85], [-3.5, -68.75], [-3.25, -68.85], [-3.0, -68.75], [-2.75, -68.85], [-2.5, -68.75], [-1.97, -68.97], [-1.75, -69.5], [-1.97, -70.03], [-2.5, -70.25], [-2.75, -70.15], [-2.82, -70.18], [-2.97, -70.53], [-3.5, -70.75], [-3.75, -70.65], [-4.0, -70.75], [-4.53, -70.53], [-4.68, -70.18], [-4.75, -70.15], [-5.0, -70.25], [-5.25, -70.15], [-5.5, -70.25], [-4.97, -70.47], [-4.75, -71.0], [-4.87, -71.3], [-4.47, -71.47], [-4.25, -72.0], [-4.47, -72.53], [-5.0, -72.75], [-5.25, -72.65], [-5.5, -72.75], [-5.75, -72.65], [-6.0, -72.75], [-6.53, -72.53], [-6.68, -72.18], [-6.75, -72.15], [-7.0, -72.25], [-7.25, -72.15], [-7.5, -72.25], [-7.75, -72.15], [-8.0, -72.25], [-8.5, -72.04], [-9.0, -72.25], [-9.25, -72.15], [-9.5, -72.25], [-9.75, -72.15], [-10.0, -72.25], [-10.25, -72.15], [-10.5, -72.25], [-10.75, -72.15], [-11.0, -72.25], [-11.53, -72.03], [-11.68, -71.68], [-11.75, -71.65], [-12.0, -71.75], [-12.25, -71.65], [-12.5, -71.75], [-13.03, -71.53]], [[-5.75, -70.15], [-6.0, -70.25], [-5.75, -70.35], [-5.5, -70.25], [-5.75, -70.15]], [[-6.25, -70.15], [-6.5, -70.25], [-6.25, -70.35], [-6.0, -70.25], [-6.25, -70.15]], [[-6.75, -70.15], [-7.0, -70.25], [-6.75, -70.35], [-6.5, -70.25], [-6.75, -70.15]], [[-7.25, -70.15], [-7.5, -70.25], [-7.25, -70.35], [-7.0, -70.25], [-7.25, -70.15]], [[-7.75, -70.15], [-7.82, -70.18], [-7.87, -70.3], [-7.75, -70.35], [-7.5, -70.25], [-7.75, -70.15]]]]}, "2012-08-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-13.03, -71.53], [-13.25, -71.0], [-13.03, -70.47], [-12.5, -70.25], [-12.25, -70.35], [-12.12, -70.3], [-12.25, -70.0], [-12.03, -69.47], [-11.5, -69.25], [-11.25, -69.35], [-11.0, -69.25], [-10.75, -69.35], [-10.5, -69.25], [-10.25, -69.35], [-10.0, -69.25], [-9.75, -69.35], [-9.5, -69.25], [-9.25, -69.35], [-9.0, -69.25], [-8.75, -69.35], [-8.68, -69.32], [-8.53, -68.97], [-8.0, -68.75], [-7.75, -68.85], [-7.5, -68.75], [-7.25, -68.85], [-7.0, -68.75], [-6.75, -68.85], [-6.5, -68.75], [-6.25, -68.85], [-6.0, -68.75], [-5.75, -68.85], [-5.5, -68.75], [-5.25, -68.85], [-5.0, -68.75], [-4.75, -68.85], [-4.5, -68.75], [-4.25, -68.85], [-4.0, -68.75], [-3.75, -68.85], [-3.5, -68.75], [-3.25, -68.85], [-3.0, -68.75], [-2.75, -68.85], [-2.5, -68.75], [-1.97, -68.97], [-1.75, -69.5], [-1.97, -70.03], [-2.5, -70.25], [-2.75, -70.15], [-2.82, -70.18], [-2.97, -70.53], [-3.5, -70.75], [-3.75, -70.65], [-4.0, -70.75], [-4.53, -70.53], [-4.68, -70.18], [-4.75, -70.15], [-5.0, -70.25], [-5.25, -70.15], [-5.5, -70.25], [-4.97, -70.47], [-4.75, -71.0], [-4.87, -71.3], [-4.47, -71.47], [-4.25, -72.0], [-4.47, -72.53], [-5.0, -72.75], [-5.25, -72.65], [-5.5, -72.75], [-5.75, -72.65], [-6.0, -72.75], [-6.53, -72.53], [-6.68, -72.18], [-6.75, -72.15], [-7.0, -72.25], [-7.25, -72.15], [-7.5, -72.25], [-7.75, -72.15], [-8.0, -72.25], [-8.5, -72.04], [-9.0, -72.25], [-9.25, -72.15], [-9.5, -72.25], [-9.75, -72.15], [-10.0, -72.25], [-10.25, -72.15], [-10.5, -72.25], [-10.75, -72.15], [-11.0, -72.25], [-11.53, -72.03], [-11.68, -71.68], [-11.75, -71.65], [-12.0, -71.75], [-12.25, -71.65], [-12.5, -71.75], [-13.03, -71.53]], [[-5.75, -70.15], [-6.0, -70.25], [-5.75, -70.35], [-5.5, -70.25], [-5.75, -70.15]], [[-6.25, -70.15], [-6.5, -70.25], [-6.25, -70.35], [-6.0, -70.25], [-6.25, -70.15]], [[-6.75, -70.15], [-7.0, -70.25], [-6.75, -70.35], [-6.5, -70.25], [-6.75, -70.15]], [[-7.25, -70.15], [-7.5, -70.25], [-7.25, -70.35], [-7.0, -70.25], [-7.25, -70.15]], [[-7.75, -70.15], [-7.82, -70.18], [-7.87, -70.3], [-7.75, -70.35], [-7.5, -70.25], [-7.75, -70.15]]]]}, "2012-08-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-13.03, -71.53], [-13.25, -71.0], [-13.03, -70.47], [-12.5, -70.25], [-12.25, -70.35], [-12.12, -70.3], [-12.25, -70.0], [-12.03, -69.47], [-11.5, -69.25], [-11.25, -69.35], [-11.0, -69.25], [-10.75, -69.35], [-10.5, -69.25], [-10.25, -69.35], [-10.0, -69.25], [-9.75, -69.35], [-9.5, -69.25], [-9.25, -69.35], [-9.0, -69.25], [-8.75, -69.35], [-8.68, -69.32], [-8.53, -68.97], [-8.0, -68.75], [-7.75, -68.85], [-7.5, -68.75], [-7.25, -68.85], [-7.0, -68.75], [-6.75, -68.85], [-6.5, -68.75], [-6.25, -68.85], [-6.0, -68.75], [-5.75, -68.85], [-5.5, -68.75], [-5.25, -68.85], [-5.0, -68.75], [-4.75, -68.85], [-4.5, -68.75], [-4.25, -68.85], [-4.0, -68.75], [-3.75, -68.85], [-3.5, -68.75], [-3.25, -68.85], [-3.0, -68.75], [-2.75, -68.85], [-2.5, -68.75], [-1.97, -68.97], [-1.75, -69.5], [-1.97, -70.03], [-2.5, -70.25], [-2.75, -70.15], [-2.82, -70.18], [-2.97, -70.53], [-3.5, -70.75], [-3.75, -70.65], [-4.0, -70.75], [-4.53, -70.53], [-4.68, -70.18], [-4.75, -70.15], [-5.0, -70.25], [-5.25, -70.15], [-5.5, -70.25], [-4.97, -70.47], [-4.75, -71.0], [-4.87, -71.3], [-4.47, -71.47], [-4.25, -72.0], [-4.47, -72.53], [-5.0, -72.75], [-5.25, -72.65], [-5.5, -72.75], [-5.75, -72.65], [-6.0, -72.75], [-6.53, -72.53], [-6.68, -72.18], [-6.75, -72.15], [-7.0, -72.25], [-7.25, -72.15], [-7.5, -72.25], [-7.75, -72.15], [-8.0, -72.25], [-8.5, -72.04], [-9.0, -72.25], [-9.25, -72.15], [-9.5, -72.25], [-9.75, -72.15], [-10.0, -72.25], [-10.25, -72.15], [-10.5, -72.25], [-10.75, -72.15], [-11.0, -72.25], [-11.53, -72.03], [-11.68, -71.68], [-11.75, -71.65], [-12.0, -71.75], [-12.25, -71.65], [-12.5, -71.75], [-13.03, -71.53]], [[-5.75, -70.15], [-6.0, -70.25], [-5.75, -70.35], [-5.5, -70.25], [-5.75, -70.15]], [[-6.25, -70.15], [-6.5, -70.25], [-6.25, -70.35], [-6.0, -70.25], [-6.25, -70.15]], [[-6.75, -70.15], [-7.0, -70.25], [-6.75, -70.35], [-6.5, -70.25], [-6.75, -70.15]], [[-7.25, -70.15], [-7.5, -70.25], [-7.25, -70.35], [-7.0, -70.25], [-7.25, -70.15]], [[-7.75, -70.15], [-7.82, -70.18], [-7.87, -70.3], [-7.75, -70.35], [-7.5, -70.25], [-7.75, -70.15]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 11.473510043265406}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 8.343277999813635}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-12.605037539923387, -12.447533918096042, -13.627710264105872]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-8.652833762015575, -9.139422989906336, -11.048657973402896]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [8.828617952317025, 8.797165481682478, 7.404050565441405]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [11.473510043265406, 11.273566613006636, 10.57398319363088]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.7973125852868281, 1.7876345267208222, 1.4997527773480506]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.2308876863124145, 2.0790081802119103, 1.744735720526807]}}