{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:03:04.352995", "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": "2015-May-16_to_2015-May-20_17.0_-25.5"}, "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": 2015050002068}, "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 16 2015"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 20 2015"}, "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": 55684.426309068695}, "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": ["Namibia"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["W.Southern-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": -25.5}, "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": 17.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "17.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 15.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 17.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -27.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -23.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2015-05-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[15.47, -23.47], [16.0, -23.25], [16.25, -23.35], [16.5, -23.25], [17.03, -23.47], [17.2, -23.87], [17.5, -23.75], [18.03, -23.97], [18.25, -24.5], [18.03, -25.03], [17.63, -25.2], [17.75, -25.5], [17.53, -26.03], [17.18, -26.18], [17.03, -26.53], [16.5, -26.75], [15.97, -26.53], [15.75, -26.0], [15.85, -25.75], [15.75, -25.5], [15.85, -25.25], [15.82, -25.18], [15.47, -25.03], [15.25, -24.5], [15.35, -24.25], [15.25, -24.0], [15.47, -23.47]]]]}, "2015-05-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[15.47, -23.47], [16.0, -23.25], [16.25, -23.35], [16.5, -23.25], [17.03, -23.47], [17.2, -23.87], [17.5, -23.75], [18.03, -23.97], [18.25, -24.5], [18.04, -25.0], [18.25, -25.5], [18.15, -25.75], [18.25, -26.0], [18.15, -26.25], [18.25, -26.5], [18.03, -27.03], [17.68, -27.18], [17.65, -27.25], [17.75, -27.5], [17.53, -28.03], [17.0, -28.25], [16.47, -28.03], [16.32, -27.68], [15.97, -27.53], [15.75, -27.0], [15.85, -26.75], [15.75, -26.5], [15.85, -26.25], [15.75, -26.0], [15.85, -25.75], [15.75, -25.5], [15.85, -25.25], [15.82, -25.18], [15.47, -25.03], [15.25, -24.5], [15.35, -24.25], [15.25, -24.0], [15.47, -23.47]]]]}, "2015-05-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[15.47, -23.47], [16.0, -23.25], [16.25, -23.35], [16.5, -23.25], [17.03, -23.47], [17.2, -23.87], [17.5, -23.75], [18.03, -23.97], [18.25, -24.5], [18.04, -25.0], [18.25, -25.5], [18.15, -25.75], [18.25, -26.0], [18.15, -26.25], [18.25, -26.5], [18.04, -27.0], [18.25, -27.5], [18.03, -28.03], [17.5, -28.25], [17.25, -28.15], [17.0, -28.25], [16.47, -28.03], [16.32, -27.68], [15.97, -27.53], [15.75, -27.0], [15.85, -26.75], [15.75, -26.5], [15.85, -26.25], [15.75, -26.0], [15.85, -25.75], [15.75, -25.5], [15.85, -25.25], [15.82, -25.18], [15.47, -25.03], [15.25, -24.5], [15.35, -24.25], [15.25, -24.0], [15.47, -23.47]]]]}, "2015-05-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[15.85, -26.25], [15.75, -26.0], [15.85, -25.75], [15.75, -25.5], [15.85, -25.25], [15.75, -25.0], [15.85, -24.75], [15.75, -24.5], [15.97, -23.97], [16.5, -23.75], [17.03, -23.97], [17.18, -24.32], [17.53, -24.47], [17.68, -24.82], [18.03, -24.97], [18.25, -25.5], [18.15, -25.75], [18.25, -26.0], [18.15, -26.25], [18.25, -26.5], [18.04, -27.0], [18.25, -27.5], [18.03, -28.03], [17.5, -28.25], [17.25, -28.15], [17.0, -28.25], [16.47, -28.03], [16.32, -27.68], [15.97, -27.53], [15.75, -27.0], [15.85, -26.75], [15.75, -26.5], [15.85, -26.25]]]]}, "2015-05-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[16.35, -26.75], [16.25, -26.5], [16.47, -25.97], [17.0, -25.75], [17.53, -25.97], [17.75, -26.5], [17.65, -26.75], [17.68, -26.82], [18.03, -26.97], [18.25, -27.5], [18.03, -28.03], [17.5, -28.25], [17.25, -28.15], [17.0, -28.25], [16.47, -28.03], [16.25, -27.5], [16.35, -27.25], [16.25, -27.0], [16.35, -26.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 4.660510201042257}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.5380618569231737}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [20.191687490925744, 20.67451845958766, 20.789737707655263, 20.38932765349267, 21.111777788076438]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [21.6092737480206, 22.24622175061762, 23.023260020318673, 22.095521002007104, 22.051802627079326]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.830282575329697, 3.5205913855827418, 3.675190561384272, 3.6398440123831897, 3.9438330148316254]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.2805255375660636, 4.014909421301297, 4.660510201042257, 4.52535293571043, 4.258613085926299]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.1872863345092755, 1.3237673419695313, 1.2902830438500612, 1.1975751844418572, 1.1494183054421965]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.370386215686947, 1.5168432314614826, 1.4837080845875295, 1.437220055841423, 1.2269136072461728]}}