{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:08:42.684485", "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": "2017-Aug-02_to_2017-Aug-05_354.0_15.5"}, "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": 2017080001324}, "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 02 2017"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 05 2017"}, "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": 83227.64265149874}, "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": ["Mali", "Mauritania"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Sahara", "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": 15.5}, "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": 354.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "354.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 351.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 356.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 14.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 17.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2017-08-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-8.53, 16.53], [-8.0, 16.75], [-7.75, 16.65], [-7.5, 16.75], [-7.25, 16.65], [-7.18, 16.68], [-7.03, 17.03], [-6.5, 17.25], [-6.25, 17.15], [-6.18, 17.18], [-6.03, 17.53], [-5.5, 17.75], [-5.25, 17.65], [-5.0, 17.75], [-4.75, 17.65], [-4.5, 17.75], [-4.25, 17.65], [-4.0, 17.75], [-3.47, 17.53], [-3.25, 17.0], [-3.47, 16.47], [-3.82, 16.32], [-3.97, 15.97], [-4.32, 15.82], [-4.47, 15.47], [-4.82, 15.32], [-4.85, 15.25], [-4.75, 15.0], [-4.97, 14.47], [-5.32, 14.32], [-5.47, 13.97], [-6.0, 13.75], [-6.5, 13.96], [-7.0, 13.75], [-7.53, 13.97], [-7.75, 14.5], [-7.57, 14.93], [-8.0, 14.75], [-8.53, 14.97], [-8.75, 15.5], [-8.65, 15.75], [-8.75, 16.0], [-8.53, 16.53]]]]}, "2017-08-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-8.53, 16.53], [-8.0, 16.75], [-7.75, 16.65], [-7.68, 16.68], [-7.53, 17.03], [-7.0, 17.25], [-6.75, 17.15], [-6.5, 17.25], [-6.25, 17.15], [-6.18, 17.18], [-6.03, 17.53], [-5.5, 17.75], [-5.25, 17.65], [-5.0, 17.75], [-4.75, 17.65], [-4.5, 17.75], [-4.25, 17.65], [-4.0, 17.75], [-3.47, 17.53], [-3.25, 17.0], [-3.47, 16.47], [-3.82, 16.32], [-3.97, 15.97], [-4.32, 15.82], [-4.47, 15.47], [-4.82, 15.32], [-4.85, 15.25], [-4.75, 15.0], [-4.97, 14.47], [-5.32, 14.32], [-5.47, 13.97], [-6.0, 13.75], [-6.5, 13.96], [-7.0, 13.75], [-7.53, 13.97], [-7.75, 14.5], [-7.65, 14.75], [-7.7, 14.88], [-8.0, 14.75], [-8.53, 14.97], [-8.75, 15.5], [-8.65, 15.75], [-8.75, 16.0], [-8.53, 16.53]]]]}, "2017-08-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-8.53, 16.53], [-8.0, 16.75], [-7.75, 16.65], [-7.68, 16.68], [-7.53, 17.03], [-7.0, 17.25], [-6.75, 17.15], [-6.5, 17.25], [-6.25, 17.15], [-6.18, 17.18], [-6.03, 17.53], [-5.5, 17.75], [-5.25, 17.65], [-5.0, 17.75], [-4.75, 17.65], [-4.5, 17.75], [-4.25, 17.65], [-4.0, 17.75], [-3.47, 17.53], [-3.25, 17.0], [-3.47, 16.47], [-3.82, 16.32], [-3.97, 15.97], [-4.32, 15.82], [-4.47, 15.47], [-4.82, 15.32], [-4.85, 15.25], [-4.75, 15.0], [-4.97, 14.47], [-5.32, 14.32], [-5.47, 13.97], [-6.0, 13.75], [-6.5, 13.96], [-7.0, 13.75], [-7.53, 13.97], [-7.75, 14.5], [-7.65, 14.75], [-7.7, 14.88], [-8.0, 14.75], [-8.53, 14.97], [-8.75, 15.5], [-8.65, 15.75], [-8.75, 16.0], [-8.53, 16.53]]]]}, "2017-08-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-8.53, 16.53], [-8.0, 16.75], [-7.75, 16.65], [-7.68, 16.68], [-7.53, 17.03], [-7.0, 17.25], [-6.75, 17.15], [-6.5, 17.25], [-6.25, 17.15], [-6.18, 17.18], [-6.03, 17.53], [-5.5, 17.75], [-5.25, 17.65], [-5.0, 17.75], [-4.75, 17.65], [-4.5, 17.75], [-4.25, 17.65], [-4.0, 17.75], [-3.47, 17.53], [-3.25, 17.0], [-3.47, 16.47], [-3.82, 16.32], [-3.97, 15.97], [-4.32, 15.82], [-4.47, 15.47], [-4.82, 15.32], [-4.85, 15.25], [-4.75, 15.0], [-4.97, 14.47], [-5.32, 14.32], [-5.47, 13.97], [-6.0, 13.75], [-6.5, 13.96], [-7.0, 13.75], [-7.53, 13.97], [-7.75, 14.5], [-7.65, 14.75], [-7.7, 14.88], [-8.0, 14.75], [-8.53, 14.97], [-8.75, 15.5], [-8.65, 15.75], [-8.75, 16.0], [-8.53, 16.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 4.863928708330718}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.1069160854731175}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [32.82924964179318, 32.581438697844476, 33.02150013657996, 33.96874548052455]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [34.53305229978787, 35.06195357543618, 34.21055152195356, 35.05562525828617]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.7222475527202685, 2.570932498133465, 3.0536576554227883, 4.053350311847887]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.545541204551114, 3.7814711682665347, 3.6735269956204206, 4.863928708330718]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.6520456098982887, 1.4998870820550183, 1.7988753787399787, 2.356511133889221]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.0303983092424223, 1.9717541489477064, 2.2506480647837983, 3.0063787594237263]}}