{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:20:32.839263", "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": "2019-Sep-03_to_2019-Sep-05_12.5_10.5"}, "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": 2019090001330}, "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": "September 03 2019"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 05 2019"}, "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": 75714.32969186717}, "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": ["Cameroon", "Nigeria"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Central-Africa", "Western-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": 10.5}, "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": 12.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "12.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 9.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 14.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 9.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 13.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2019-09-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[9.75, 12.5], [9.97, 13.03], [10.5, 13.25], [10.75, 13.15], [11.0, 13.25], [11.53, 13.03], [11.68, 12.68], [11.75, 12.65], [12.0, 12.75], [12.25, 12.65], [12.32, 12.68], [12.35, 12.75], [12.25, 13.0], [12.47, 13.53], [13.0, 13.75], [13.53, 13.53], [13.75, 13.0], [13.65, 12.75], [13.75, 12.5], [13.65, 12.25], [13.75, 12.0], [13.63, 11.7], [13.75, 11.65], [14.0, 11.75], [14.53, 11.53], [14.75, 11.0], [14.53, 10.47], [14.18, 10.32], [14.15, 10.25], [14.25, 10.0], [14.03, 9.47], [13.5, 9.25], [12.97, 9.47], [12.8, 9.88], [12.5, 9.75], [11.97, 9.97], [11.82, 10.32], [11.75, 10.35], [11.5, 10.25], [11.25, 10.35], [11.0, 10.25], [10.47, 10.47], [10.3, 10.88], [10.0, 10.75], [9.47, 10.97], [9.25, 11.5], [9.47, 12.03], [9.82, 12.18], [9.85, 12.25], [9.75, 12.5]]]]}, "2019-09-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[9.75, 12.5], [9.97, 13.03], [10.5, 13.25], [10.75, 13.15], [11.0, 13.25], [11.53, 13.03], [11.68, 12.68], [11.75, 12.65], [12.0, 12.75], [12.25, 12.65], [12.32, 12.68], [12.35, 12.75], [12.25, 13.0], [12.47, 13.53], [13.0, 13.75], [13.53, 13.53], [13.75, 13.0], [13.65, 12.75], [13.75, 12.5], [13.65, 12.25], [13.75, 12.0], [13.63, 11.7], [13.75, 11.65], [14.0, 11.75], [14.53, 11.53], [14.75, 11.0], [14.53, 10.47], [14.18, 10.32], [14.15, 10.25], [14.25, 10.0], [14.03, 9.47], [13.5, 9.25], [12.97, 9.47], [12.8, 9.88], [12.5, 9.75], [11.97, 9.97], [11.82, 10.32], [11.75, 10.35], [11.5, 10.25], [11.25, 10.35], [11.0, 10.25], [10.47, 10.47], [10.3, 10.88], [10.0, 10.75], [9.47, 10.97], [9.25, 11.5], [9.47, 12.03], [9.82, 12.18], [9.85, 12.25], [9.75, 12.5]]]]}, "2019-09-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[9.75, 12.5], [9.97, 13.03], [10.5, 13.25], [10.75, 13.15], [11.0, 13.25], [11.53, 13.03], [11.68, 12.68], [11.75, 12.65], [12.0, 12.75], [12.25, 12.65], [12.32, 12.68], [12.35, 12.75], [12.25, 13.0], [12.47, 13.53], [13.0, 13.75], [13.53, 13.53], [13.75, 13.0], [13.65, 12.75], [13.75, 12.5], [13.65, 12.25], [13.75, 12.0], [13.63, 11.7], [13.75, 11.65], [14.0, 11.75], [14.53, 11.53], [14.75, 11.0], [14.53, 10.47], [14.18, 10.32], [14.15, 10.25], [14.25, 10.0], [14.03, 9.47], [13.5, 9.25], [12.97, 9.47], [12.8, 9.88], [12.5, 9.75], [11.97, 9.97], [11.82, 10.32], [11.75, 10.35], [11.5, 10.25], [11.25, 10.35], [11.0, 10.25], [10.47, 10.47], [10.3, 10.88], [10.0, 10.75], [9.47, 10.97], [9.25, 11.5], [9.47, 12.03], [9.82, 12.18], [9.85, 12.25], [9.75, 12.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.680971614153407}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.8283184019231884}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.535331302357406, 27.67083720759223, 27.81421792186734]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [30.083803510698715, 29.737511356617233, 30.20684740195378]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.7226067299786836, 1.815346780028583, 1.9470016957622989]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.378651008207953, 2.495859170692256, 2.680971614153407]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5778973703398314, 1.6850967976542557, 1.7925848657666306]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.8854023690400308, 2.4246510174327187, 2.5149124556320137]}}