{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:47:29.141738", "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": "2011-May-03_to_2011-May-06_354.0_14.5"}, "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": 2011050001699}, "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": "May 03 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 06 2011"}, "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": 65778.82165885612}, "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": 14.5}, "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": 353.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 357.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 13.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 16.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-05-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-3.0, 15.25], [-2.47, 15.03], [-2.25, 14.5], [-2.47, 13.97], [-3.0, 13.75], [-3.53, 13.97], [-3.75, 14.5], [-3.53, 15.03], [-3.0, 15.25]]]]}, "2011-05-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-6.53, 15.03], [-6.18, 15.18], [-6.15, 15.25], [-6.25, 15.5], [-6.03, 16.03], [-5.5, 16.25], [-5.25, 16.15], [-5.0, 16.25], [-4.5, 16.04], [-4.0, 16.25], [-3.75, 16.15], [-3.68, 16.18], [-3.53, 16.53], [-3.0, 16.75], [-2.47, 16.53], [-2.25, 16.0], [-2.35, 15.75], [-2.25, 15.5], [-2.46, 15.0], [-2.25, 14.5], [-2.47, 13.97], [-2.82, 13.82], [-2.97, 13.47], [-3.5, 13.25], [-3.75, 13.35], [-4.0, 13.25], [-4.25, 13.35], [-4.5, 13.25], [-4.75, 13.35], [-4.82, 13.32], [-4.97, 12.97], [-5.5, 12.75], [-6.03, 12.97], [-6.18, 13.32], [-6.53, 13.47], [-6.75, 14.0], [-6.65, 14.25], [-6.75, 14.5], [-6.53, 15.03]]]]}, "2011-05-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-6.53, 15.03], [-6.18, 15.18], [-6.15, 15.25], [-6.25, 15.5], [-6.03, 16.03], [-5.5, 16.25], [-5.25, 16.15], [-5.0, 16.25], [-4.5, 16.04], [-4.0, 16.25], [-3.75, 16.15], [-3.68, 16.18], [-3.53, 16.53], [-3.0, 16.75], [-2.47, 16.53], [-2.25, 16.0], [-2.35, 15.75], [-2.25, 15.5], [-2.46, 15.0], [-2.25, 14.5], [-2.47, 13.97], [-2.82, 13.82], [-2.97, 13.47], [-3.5, 13.25], [-3.75, 13.35], [-4.0, 13.25], [-4.25, 13.35], [-4.5, 13.25], [-4.75, 13.35], [-4.82, 13.32], [-4.97, 12.97], [-5.5, 12.75], [-6.03, 12.97], [-6.18, 13.32], [-6.53, 13.47], [-6.75, 14.0], [-6.65, 14.25], [-6.75, 14.5], [-6.53, 15.03]]]]}, "2011-05-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-6.53, 15.03], [-6.18, 15.18], [-6.15, 15.25], [-6.25, 15.5], [-6.03, 16.03], [-5.5, 16.25], [-5.25, 16.15], [-5.0, 16.25], [-4.5, 16.04], [-4.0, 16.25], [-3.75, 16.15], [-3.68, 16.18], [-3.53, 16.53], [-3.0, 16.75], [-2.47, 16.53], [-2.25, 16.0], [-2.35, 15.75], [-2.25, 15.5], [-2.47, 14.97], [-2.82, 14.82], [-2.85, 14.75], [-2.75, 14.5], [-2.85, 14.25], [-2.75, 14.0], [-2.97, 13.47], [-3.5, 13.25], [-3.75, 13.35], [-4.0, 13.25], [-4.25, 13.35], [-4.5, 13.25], [-4.75, 13.35], [-4.82, 13.32], [-4.97, 12.97], [-5.5, 12.75], [-6.03, 12.97], [-6.18, 13.32], [-6.53, 13.47], [-6.75, 14.0], [-6.65, 14.25], [-6.75, 14.5], [-6.53, 15.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.5167937441598838}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.3705068566353966}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [35.91778869427884, 36.63172132596253, 37.26439146131321, 36.740055138835885]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [35.91778869427884, 37.495989027753865, 38.51074161584745, 37.80058362145468]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.9743472504336523, 2.186771697307532, 2.784346905326244, 2.148309334740927]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.9743472504336523, 2.9203251942150814, 3.5167937441598838, 3.0777417904327535]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3018174679359167, 1.4158403934414612, 1.852324423306522, 1.511513535512344]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.3018174679359167, 1.9501243580941843, 2.4062251598471964, 1.9398192909654897]}}