{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:13:01.889709", "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": "2018-Jun-04_to_2018-Jun-09_9.5_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": 2018060001715}, "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": "June 04 2018"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 09 2018"}, "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": 51484.44639297196}, "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": ["Nigeria"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["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": 9.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "9.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 8.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 11.75}, "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": 12.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2018-06-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[8.97, 11.03], [9.5, 11.25], [9.8, 11.13], [9.97, 11.53], [10.5, 11.75], [10.75, 11.65], [11.0, 11.75], [11.53, 11.53], [11.75, 11.0], [11.53, 10.47], [11.0, 10.25], [10.75, 10.35], [10.5, 10.25], [10.2, 10.38], [10.15, 10.25], [10.25, 10.0], [10.03, 9.47], [9.5, 9.25], [8.97, 9.47], [8.75, 10.0], [8.85, 10.25], [8.75, 10.5], [8.97, 11.03]]]]}, "2018-06-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[8.97, 11.03], [9.5, 11.25], [9.8, 11.13], [9.97, 11.53], [10.5, 11.75], [10.75, 11.65], [11.0, 11.75], [11.53, 11.53], [11.75, 11.0], [11.53, 10.47], [11.0, 10.25], [10.75, 10.35], [10.5, 10.25], [10.2, 10.38], [10.15, 10.25], [10.25, 10.0], [10.03, 9.47], [9.5, 9.25], [8.97, 9.47], [8.75, 10.0], [8.85, 10.25], [8.75, 10.5], [8.97, 11.03]]]]}, "2018-06-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[8.97, 11.03], [9.5, 11.25], [9.8, 11.13], [9.97, 11.53], [10.5, 11.75], [10.75, 11.65], [11.0, 11.75], [11.53, 11.53], [11.75, 11.0], [11.53, 10.47], [11.0, 10.25], [10.75, 10.35], [10.5, 10.25], [10.2, 10.38], [10.15, 10.25], [10.25, 10.0], [10.03, 9.47], [9.5, 9.25], [8.97, 9.47], [8.75, 10.0], [8.85, 10.25], [8.75, 10.5], [8.97, 11.03]]]]}, "2018-06-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[7.97, 13.03], [8.5, 13.25], [8.75, 13.15], [9.0, 13.25], [9.25, 13.15], [9.5, 13.25], [10.03, 13.03], [10.25, 12.5], [10.15, 12.25], [10.18, 12.18], [10.25, 12.15], [10.5, 12.25], [10.75, 12.15], [11.0, 12.25], [11.25, 12.15], [11.5, 12.25], [12.03, 12.03], [12.25, 11.5], [12.03, 10.97], [11.68, 10.82], [11.53, 10.47], [11.0, 10.25], [10.75, 10.35], [10.5, 10.25], [10.25, 10.35], [10.18, 10.32], [10.15, 10.25], [10.25, 10.0], [10.03, 9.47], [9.5, 9.25], [8.97, 9.47], [8.75, 10.0], [8.85, 10.25], [8.75, 10.5], [8.88, 10.8], [8.47, 10.97], [8.32, 11.32], [7.97, 11.47], [7.75, 12.0], [7.85, 12.25], [7.75, 12.5], [7.97, 13.03]]]]}, "2018-06-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[7.97, 13.03], [8.5, 13.25], [8.75, 13.15], [9.0, 13.25], [9.25, 13.15], [9.5, 13.25], [10.03, 13.03], [10.25, 12.5], [10.15, 12.25], [10.18, 12.18], [10.25, 12.15], [10.5, 12.25], [10.75, 12.15], [11.0, 12.25], [11.25, 12.15], [11.5, 12.25], [12.03, 12.03], [12.25, 11.5], [12.03, 10.97], [11.68, 10.82], [11.53, 10.47], [11.0, 10.25], [10.75, 10.35], [10.5, 10.25], [10.25, 10.35], [10.18, 10.32], [10.15, 10.25], [10.25, 10.0], [10.03, 9.47], [9.5, 9.25], [8.97, 9.47], [8.75, 10.0], [8.85, 10.25], [8.75, 10.5], [8.88, 10.8], [8.47, 10.97], [8.32, 11.32], [7.97, 11.47], [7.75, 12.0], [7.85, 12.25], [7.75, 12.5], [7.97, 13.03]]]]}, "2018-06-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[7.97, 13.03], [8.5, 13.25], [8.75, 13.15], [9.0, 13.25], [9.25, 13.15], [9.5, 13.25], [10.03, 13.03], [10.25, 12.5], [10.15, 12.25], [10.18, 12.18], [10.25, 12.15], [10.5, 12.25], [10.75, 12.15], [11.0, 12.25], [11.25, 12.15], [11.5, 12.25], [12.03, 12.03], [12.25, 11.5], [12.03, 10.97], [11.68, 10.82], [11.53, 10.47], [11.0, 10.25], [10.75, 10.35], [10.5, 10.25], [10.25, 10.35], [10.18, 10.32], [10.15, 10.25], [10.25, 10.0], [10.03, 9.47], [9.5, 9.25], [8.97, 9.47], [8.75, 10.0], [8.85, 10.25], [8.75, 10.5], [8.88, 10.8], [8.47, 10.97], [8.32, 11.32], [7.97, 11.47], [7.75, 12.0], [7.85, 12.25], [7.75, 12.5], [7.97, 13.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.591547183071384}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.6523615566619427}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [30.659508710853004, 30.83982947678885, 30.26301135016257, 32.09924808404054, 32.35207939857452, 32.093479101526725]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [32.05169639729047, 32.35296548412413, 31.80403077298132, 33.75282511605741, 33.73631941608721, 33.79457011452547]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.509641365218428, 2.7822396509632625, 2.239205856805185, 2.4947193610499276, 2.8686218949259628, 2.6939781897743975]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.708768714542373, 2.9899388758191208, 2.4521978808849667, 2.9245556890877538, 3.591547183071384, 3.2042822809100358]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5988595040429185, 1.741713789468133, 1.4217843355509967, 1.5877586211818737, 1.929219941213021, 1.8186557708558815]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.8391731352775522, 1.9132727528572013, 1.51461240048241, 1.7742117967112103, 2.4805122763593714, 2.106618018088703]}}