{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:46:00.892095", "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-Oct-28_to_2010-Nov-02_20.5_-12.5"}, "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": 2010100002631}, "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": "October 28 2010"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 02 2010"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 117380.04432744705}, "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": ["Angola", "Zambia"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["W.Southern-Africa"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Africa"]}, "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": -12.5}, "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": 20.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "20.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 17.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 22.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -14.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -10.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2010-10-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[20.75, -14.0], [20.97, -13.47], [21.5, -13.25], [21.75, -13.35], [22.0, -13.25], [22.53, -13.47], [22.75, -14.0], [22.53, -14.53], [22.0, -14.75], [21.75, -14.65], [21.5, -14.75], [20.97, -14.53], [20.75, -14.0]]], [[[19.97, -13.03], [19.75, -12.5], [19.97, -11.97], [20.5, -11.75], [21.03, -11.97], [21.25, -12.5], [21.03, -13.03], [20.5, -13.25], [19.97, -13.03]]]]}, "2010-10-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[17.75, -10.5], [17.97, -9.97], [18.5, -9.75], [18.75, -9.85], [19.0, -9.75], [19.53, -9.97], [19.75, -10.5], [19.65, -10.75], [19.68, -10.82], [20.03, -10.97], [20.25, -11.5], [20.13, -11.8], [20.25, -11.85], [20.5, -11.75], [21.03, -11.97], [21.25, -12.5], [21.15, -12.75], [21.25, -13.0], [21.07, -13.43], [21.5, -13.25], [21.75, -13.35], [22.0, -13.25], [22.53, -13.47], [22.75, -14.0], [22.53, -14.53], [22.0, -14.75], [21.75, -14.65], [21.5, -14.75], [20.97, -14.53], [20.75, -14.0], [20.93, -13.57], [20.5, -13.75], [19.97, -13.53], [19.82, -13.18], [19.75, -13.15], [19.5, -13.25], [18.97, -13.03], [18.75, -12.5], [18.96, -12.0], [18.82, -11.68], [18.47, -11.53], [18.32, -11.18], [17.97, -11.03], [17.75, -10.5]]]]}, "2010-10-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[17.75, -10.5], [17.97, -9.97], [18.5, -9.75], [18.75, -9.85], [19.0, -9.75], [19.53, -9.97], [19.75, -10.5], [19.65, -10.75], [19.68, -10.82], [19.75, -10.85], [20.0, -10.75], [20.53, -10.97], [20.68, -11.32], [20.75, -11.35], [21.0, -11.25], [21.53, -11.47], [21.75, -12.0], [21.65, -12.25], [21.68, -12.32], [22.03, -12.47], [22.18, -12.82], [22.25, -12.85], [22.5, -12.75], [23.03, -12.97], [23.25, -13.5], [23.15, -13.75], [23.25, -14.0], [23.03, -14.53], [22.5, -14.75], [22.25, -14.65], [22.0, -14.75], [21.75, -14.65], [21.5, -14.75], [21.25, -14.65], [21.18, -14.68], [21.03, -15.03], [20.5, -15.25], [20.25, -15.15], [20.0, -15.25], [19.47, -15.03], [19.32, -14.68], [19.25, -14.65], [19.0, -14.75], [18.47, -14.53], [18.25, -14.0], [18.47, -13.47], [19.0, -13.25], [19.25, -13.35], [19.5, -13.25], [18.97, -13.03], [18.75, -12.5], [18.96, -12.0], [18.82, -11.68], [18.47, -11.53], [18.32, -11.18], [17.97, -11.03], [17.75, -10.5]], [[19.75, -13.35], [19.82, -13.32], [19.85, -13.25], [19.82, -13.18], [19.75, -13.15], [19.5, -13.25], [19.75, -13.35]]]]}, "2010-10-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[17.25, -14.0], [17.47, -13.47], [18.0, -13.25], [18.25, -13.35], [18.38, -13.3], [18.25, -13.0], [18.47, -12.47], [18.82, -12.32], [18.96, -12.0], [18.82, -11.68], [18.47, -11.53], [18.32, -11.18], [17.97, -11.03], [17.75, -10.5], [17.97, -9.97], [18.5, -9.75], [18.75, -9.85], [19.0, -9.75], [19.53, -9.97], [19.75, -10.5], [19.65, -10.75], [19.68, -10.82], [19.75, -10.85], [20.0, -10.75], [20.53, -10.97], [20.68, -11.32], [20.75, -11.35], [21.0, -11.25], [21.53, -11.47], [21.7, -11.87], [22.0, -11.75], [22.25, -11.85], [22.5, -11.75], [23.03, -11.97], [23.25, -12.5], [23.15, -12.75], [23.25, -13.0], [23.15, -13.25], [23.25, -13.5], [23.15, -13.75], [23.25, -14.0], [23.03, -14.53], [22.5, -14.75], [22.25, -14.65], [22.0, -14.75], [21.75, -14.65], [21.5, -14.75], [21.25, -14.65], [21.18, -14.68], [21.03, -15.03], [20.5, -15.25], [20.25, -15.15], [20.0, -15.25], [19.75, -15.15], [19.5, -15.25], [19.25, -15.15], [19.0, -15.25], [18.75, -15.15], [18.5, -15.25], [17.97, -15.03], [17.82, -14.68], [17.47, -14.53], [17.25, -14.0]], [[19.82, -13.18], [19.75, -13.15], [19.68, -13.18], [19.63, -13.3], [19.75, -13.35], [19.82, -13.32], [19.85, -13.25], [19.82, -13.18]]]]}, "2010-11-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[17.25, -14.0], [17.47, -13.47], [18.0, -13.25], [18.25, -13.35], [18.38, -13.3], [18.25, -13.0], [18.47, -12.47], [18.82, -12.32], [18.96, -12.0], [18.82, -11.68], [18.47, -11.53], [18.32, -11.18], [17.97, -11.03], [17.75, -10.5], [17.97, -9.97], [18.5, -9.75], [18.75, -9.85], [19.0, -9.75], [19.53, -9.97], [19.75, -10.5], [19.65, -10.75], [19.68, -10.82], [19.75, -10.85], [20.0, -10.75], [20.53, -10.97], [20.68, -11.32], [20.75, -11.35], [21.0, -11.25], [21.53, -11.47], [21.7, -11.87], [22.0, -11.75], [22.25, -11.85], [22.5, -11.75], [23.03, -11.97], [23.25, -12.5], [23.15, -12.75], [23.25, -13.0], [23.15, -13.25], [23.25, -13.5], [23.15, -13.75], [23.25, -14.0], [23.03, -14.53], [22.5, -14.75], [22.25, -14.65], [22.0, -14.75], [21.75, -14.65], [21.5, -14.75], [21.25, -14.65], [21.18, -14.68], [21.03, -15.03], [20.5, -15.25], [20.25, -15.15], [20.0, -15.25], [19.75, -15.15], [19.5, -15.25], [19.25, -15.15], [19.0, -15.25], [18.75, -15.15], [18.5, -15.25], [17.97, -15.03], [17.82, -14.68], [17.47, -14.53], [17.25, -14.0]], [[19.82, -13.18], [19.75, -13.15], [19.68, -13.18], [19.63, -13.3], [19.75, -13.35], [19.82, -13.32], [19.85, -13.25], [19.82, -13.18]]]]}, "2010-11-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[17.25, -14.0], [17.47, -13.47], [18.0, -13.25], [18.25, -13.35], [18.38, -13.3], [18.25, -13.0], [18.47, -12.47], [19.0, -12.25], [19.53, -12.47], [19.75, -13.0], [19.63, -13.3], [19.75, -13.35], [19.82, -13.32], [19.97, -12.97], [20.5, -12.75], [20.75, -12.85], [20.82, -12.82], [20.97, -12.47], [21.32, -12.32], [21.47, -11.97], [22.0, -11.75], [22.25, -11.85], [22.5, -11.75], [23.03, -11.97], [23.25, -12.5], [23.15, -12.75], [23.25, -13.0], [23.03, -13.53], [22.5, -13.75], [22.25, -13.65], [22.18, -13.68], [22.03, -14.03], [21.5, -14.25], [21.25, -14.15], [21.18, -14.18], [21.15, -14.25], [21.25, -14.5], [21.03, -15.03], [20.5, -15.25], [20.0, -15.04], [19.5, -15.25], [19.25, -15.15], [19.0, -15.25], [18.75, -15.15], [18.5, -15.25], [17.97, -15.03], [17.82, -14.68], [17.47, -14.53], [17.25, -14.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 4.568804695763845}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.117690486662463}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [28.00803767227825, 25.24545934213569, 26.595577788463572, 26.476721416960288, 26.912485947037794, 25.972307645384547]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [29.395716462475832, 28.685323446726557, 29.579218961853087, 28.90599009224684, 29.279664129650598, 27.238248365155414]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.134943760744894, 2.438583289826994, 2.9947425589692567, 3.049284925723839, 3.621935670945877, 2.7654303150184383]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.349006168914798, 2.9443268187567924, 3.80310431268731, 3.8517698903854125, 4.568804695763845, 3.5326411030699774]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5874805791637587, 1.5570293737565364, 1.6507848229980795, 1.7259383475729224, 2.1644713026004645, 1.5883052947664047]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6455135091311726, 1.8895622887366772, 2.1097931850718723, 2.174405264216988, 3.257758798613115, 1.8647061738413206]}}