{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:13:03.358038", "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-11_to_2018-Jun-15_4.5_10.0"}, "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": 2018060002117}, "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 11 2018"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 15 2018"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 69780.0329209523}, "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": ["Benin", "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": 10.0}, "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": 4.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "4.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 3.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 6.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 9.25}, "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": {"2018-06-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[4.5, 10.75], [5.03, 10.53], [5.25, 10.0], [5.03, 9.47], [4.5, 9.25], [3.97, 9.47], [3.75, 10.0], [3.97, 10.53], [4.5, 10.75]]]]}, "2018-06-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[3.75, 10.0], [3.97, 10.53], [4.32, 10.68], [4.47, 11.03], [5.0, 11.25], [5.53, 11.03], [5.7, 10.63], [6.0, 10.75], [6.53, 10.53], [6.75, 10.0], [6.53, 9.47], [6.0, 9.25], [5.7, 9.38], [5.53, 8.97], [5.0, 8.75], [4.47, 8.97], [4.32, 9.32], [3.97, 9.47], [3.75, 10.0]]]]}, "2018-06-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[2.97, 11.03], [3.32, 11.18], [3.35, 11.25], [3.25, 11.5], [3.47, 12.03], [3.82, 12.18], [3.97, 12.53], [4.32, 12.68], [4.35, 12.75], [4.25, 13.0], [4.47, 13.53], [5.0, 13.75], [5.53, 13.53], [5.75, 13.0], [5.65, 12.75], [5.68, 12.68], [6.03, 12.53], [6.25, 12.0], [6.15, 11.75], [6.25, 11.5], [6.15, 11.25], [6.25, 11.0], [6.15, 10.75], [6.18, 10.68], [6.53, 10.53], [6.75, 10.0], [6.53, 9.47], [6.0, 9.25], [5.7, 9.38], [5.53, 8.97], [5.0, 8.75], [4.47, 8.97], [4.32, 9.32], [4.25, 9.35], [4.0, 9.25], [3.75, 9.35], [3.5, 9.25], [2.97, 9.47], [2.75, 10.0], [2.85, 10.25], [2.75, 10.5], [2.97, 11.03]]]]}, "2018-06-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[2.97, 11.03], [3.32, 11.18], [3.35, 11.25], [3.25, 11.5], [3.47, 12.03], [3.82, 12.18], [3.97, 12.53], [4.32, 12.68], [4.35, 12.75], [4.25, 13.0], [4.47, 13.53], [5.0, 13.75], [5.53, 13.53], [5.75, 13.0], [5.65, 12.75], [5.68, 12.68], [6.03, 12.53], [6.25, 12.0], [6.15, 11.75], [6.25, 11.5], [6.15, 11.25], [6.25, 11.0], [6.15, 10.75], [6.18, 10.68], [6.53, 10.53], [6.75, 10.0], [6.53, 9.47], [6.0, 9.25], [5.7, 9.38], [5.53, 8.97], [5.0, 8.75], [4.47, 8.97], [4.32, 9.32], [4.25, 9.35], [4.0, 9.25], [3.75, 9.35], [3.5, 9.25], [2.97, 9.47], [2.75, 10.0], [2.85, 10.25], [2.75, 10.5], [2.97, 11.03]]]]}, "2018-06-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[2.97, 11.03], [3.32, 11.18], [3.35, 11.25], [3.25, 11.5], [3.47, 12.03], [3.82, 12.18], [3.97, 12.53], [4.32, 12.68], [4.35, 12.75], [4.25, 13.0], [4.47, 13.53], [5.0, 13.75], [5.53, 13.53], [5.75, 13.0], [5.65, 12.75], [5.68, 12.68], [6.03, 12.53], [6.25, 12.0], [6.15, 11.75], [6.25, 11.5], [6.15, 11.25], [6.25, 11.0], [6.15, 10.75], [6.18, 10.68], [6.53, 10.53], [6.75, 10.0], [6.53, 9.47], [6.0, 9.25], [5.47, 9.47], [5.32, 9.82], [5.25, 9.85], [5.0, 9.75], [4.7, 9.88], [4.53, 9.47], [4.0, 9.25], [3.75, 9.35], [3.5, 9.25], [2.97, 9.47], [2.75, 10.0], [2.85, 10.25], [2.75, 10.5], [2.97, 11.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.7465054127771396}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.3887396751160432}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [30.65424050807127, 30.012264928941477, 31.8150322505046, 30.921062916706262, 31.14366255585088]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [30.65424050807127, 31.227533145383518, 34.42138608960505, 33.78455451988344, 33.75987609468535]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.8276973142464499, 1.88383412212263, 2.9439983123458298, 2.088619896631905, 2.24960849385038]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.8276973142464499, 2.4362784801942894, 3.7465054127771396, 2.785241772207371, 2.9891751995963887]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4892755053157978, 1.6828718126815647, 2.2639195489317974, 1.6020286627582647, 1.6957947094547496]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.4892755053157978, 2.0742598958893987, 2.8936999206959033, 1.882528744258916, 2.0291422434477395]}}