{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:20:56.889106", "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": "2020-Jul-27_to_2020-Jul-30_12.5_20.0"}, "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": 2020070003029}, "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": "July 27 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 30 2020"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "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": 76260.41572744383}, "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": ["Niger"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Sahara"]}, "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": 20.0}, "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": 12.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 15.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 16.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 20.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2020-07-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[11.97, 19.47], [11.75, 20.0], [11.97, 20.53], [12.5, 20.75], [12.75, 20.65], [13.0, 20.75], [13.53, 20.53], [13.75, 20.0], [13.53, 19.47], [13.0, 19.25], [12.75, 19.35], [12.5, 19.25], [11.97, 19.47]]]]}, "2020-07-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[11.75, 20.0], [11.97, 20.53], [12.5, 20.75], [12.75, 20.65], [13.0, 20.75], [13.25, 20.65], [13.5, 20.75], [13.75, 20.65], [13.82, 20.68], [13.97, 21.03], [14.5, 21.25], [15.03, 21.03], [15.25, 20.5], [15.03, 19.97], [14.68, 19.82], [14.54, 19.5], [14.68, 19.18], [15.0, 19.04], [15.5, 19.25], [16.03, 19.03], [16.25, 18.5], [16.04, 18.0], [16.25, 17.5], [16.15, 17.25], [16.25, 17.0], [16.03, 16.47], [15.5, 16.25], [15.25, 16.35], [15.18, 16.32], [15.03, 15.97], [14.5, 15.75], [13.97, 15.97], [13.8, 16.38], [13.5, 16.25], [12.97, 16.47], [12.75, 17.0], [12.85, 17.25], [12.82, 17.32], [12.47, 17.47], [12.25, 18.0], [12.47, 18.53], [12.82, 18.68], [12.88, 18.8], [12.47, 18.97], [12.32, 19.32], [11.97, 19.47], [11.75, 20.0]]]]}, "2020-07-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[11.75, 20.0], [11.97, 20.53], [12.5, 20.75], [12.75, 20.65], [13.0, 20.75], [13.25, 20.65], [13.5, 20.75], [13.75, 20.65], [13.82, 20.68], [13.97, 21.03], [14.5, 21.25], [15.03, 21.03], [15.25, 20.5], [15.03, 19.97], [14.68, 19.82], [14.54, 19.5], [14.68, 19.18], [15.0, 19.04], [15.5, 19.25], [16.03, 19.03], [16.25, 18.5], [16.04, 18.0], [16.25, 17.5], [16.15, 17.25], [16.25, 17.0], [16.03, 16.47], [15.5, 16.25], [15.25, 16.35], [15.18, 16.32], [15.03, 15.97], [14.5, 15.75], [13.97, 15.97], [13.8, 16.38], [13.5, 16.25], [12.97, 16.47], [12.75, 17.0], [12.85, 17.25], [12.82, 17.32], [12.47, 17.47], [12.25, 18.0], [12.47, 18.53], [12.82, 18.68], [12.88, 18.8], [12.47, 18.97], [12.32, 19.32], [11.97, 19.47], [11.75, 20.0]]]]}, "2020-07-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[11.75, 20.0], [11.97, 20.53], [12.5, 20.75], [12.75, 20.65], [13.0, 20.75], [13.25, 20.65], [13.5, 20.75], [13.75, 20.65], [13.82, 20.68], [13.97, 21.03], [14.5, 21.25], [15.03, 21.03], [15.25, 20.5], [15.03, 19.97], [14.68, 19.82], [14.54, 19.5], [14.68, 19.18], [15.0, 19.04], [15.5, 19.25], [16.03, 19.03], [16.25, 18.5], [16.04, 18.0], [16.25, 17.5], [16.15, 17.25], [16.25, 17.0], [16.03, 16.47], [15.5, 16.25], [15.25, 16.35], [15.18, 16.32], [15.03, 15.97], [14.5, 15.75], [13.97, 15.97], [13.8, 16.38], [13.5, 16.25], [12.97, 16.47], [12.75, 17.0], [12.85, 17.25], [12.82, 17.32], [12.47, 17.47], [12.25, 18.0], [12.47, 18.53], [12.82, 18.68], [12.88, 18.8], [12.47, 18.97], [12.32, 19.32], [11.97, 19.47], [11.75, 20.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.4030552668506857}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.017273050108242}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [35.834864323467116, 34.861430078080446, 35.29184272921117, 34.989374705175464]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [36.170628420514845, 36.367331874677575, 36.44478016470214, 36.83202161482512]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.4613362349877832, 1.8235183164056405, 2.2706903387999287, 2.000374865513038]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.4963632778968758, 2.5229702063276704, 3.4030552668506857, 2.735256732645837]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.2780598908406373, 1.3972302613051255, 1.701543640445057, 1.4862479703396025]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.3131899715106108, 1.6295246126160365, 2.137787699137966, 1.8360581397230749]}}