{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:08:09.840605", "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-May-29_to_2017-Jun-04_20.0_-32.5"}, "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": 2017050003003}, "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 29 2017"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 04 2017"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 7}, "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": 350328.4907984169}, "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", "South Africa"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Southern-Africa", "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": -32.5}, "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": 20.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "20.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 16.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 28.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -33.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -26.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2017-05-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[15.75, -28.5], [15.97, -27.97], [16.5, -27.75], [17.03, -27.97], [17.18, -28.32], [17.53, -28.47], [17.68, -28.82], [18.03, -28.97], [18.25, -29.5], [18.15, -29.75], [18.25, -30.0], [18.15, -30.25], [18.18, -30.32], [18.53, -30.47], [18.68, -30.82], [19.03, -30.97], [19.25, -31.5], [19.15, -31.75], [19.25, -32.0], [19.03, -32.53], [18.5, -32.75], [17.97, -32.53], [17.75, -32.0], [17.85, -31.75], [17.82, -31.68], [17.47, -31.53], [17.32, -31.18], [16.97, -31.03], [16.75, -30.5], [16.85, -30.25], [16.82, -30.18], [16.47, -30.03], [16.25, -29.5], [16.35, -29.25], [16.32, -29.18], [15.97, -29.03], [15.75, -28.5]]]]}, "2017-05-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[15.97, -27.47], [16.5, -27.25], [16.75, -27.35], [17.0, -27.25], [17.53, -27.47], [17.68, -27.82], [17.75, -27.85], [18.0, -27.75], [18.25, -27.85], [18.5, -27.75], [19.03, -27.97], [19.25, -28.5], [19.13, -28.8], [19.53, -28.97], [19.68, -29.32], [20.03, -29.47], [20.18, -29.82], [20.25, -29.85], [20.5, -29.75], [21.03, -29.97], [21.18, -30.32], [21.53, -30.47], [21.75, -31.0], [21.65, -31.25], [21.68, -31.32], [21.75, -31.35], [22.0, -31.25], [22.25, -31.35], [22.5, -31.25], [23.03, -31.47], [23.18, -31.82], [23.53, -31.97], [23.68, -32.32], [23.75, -32.35], [24.0, -32.25], [24.53, -32.47], [24.75, -33.0], [24.53, -33.53], [24.0, -33.75], [23.75, -33.65], [23.5, -33.75], [23.25, -33.65], [23.0, -33.75], [22.75, -33.65], [22.5, -33.75], [22.25, -33.65], [22.0, -33.75], [21.75, -33.65], [21.5, -33.75], [21.25, -33.65], [21.0, -33.75], [20.75, -33.65], [20.5, -33.75], [20.25, -33.65], [20.0, -33.75], [19.75, -33.65], [19.5, -33.75], [19.25, -33.65], [19.0, -33.75], [18.47, -33.53], [18.25, -33.0], [18.35, -32.75], [18.32, -32.68], [17.97, -32.53], [17.75, -32.0], [17.85, -31.75], [17.82, -31.68], [17.47, -31.53], [17.32, -31.18], [16.97, -31.03], [16.75, -30.5], [16.85, -30.25], [16.82, -30.18], [16.47, -30.03], [16.25, -29.5], [16.35, -29.25], [16.32, -29.18], [15.97, -29.03], [15.75, -28.5], [15.85, -28.25], [15.75, -28.0], [15.97, -27.47]]]]}, "2017-05-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[15.96, -27.5], [15.75, -27.0], [15.97, -26.47], [16.5, -26.25], [16.75, -26.35], [17.0, -26.25], [17.53, -26.47], [17.75, -27.0], [17.65, -27.25], [17.68, -27.32], [17.75, -27.35], [18.0, -27.25], [18.25, -27.35], [18.5, -27.25], [18.75, -27.35], [19.0, -27.25], [19.53, -27.47], [19.75, -28.0], [19.57, -28.43], [20.0, -28.25], [20.53, -28.47], [20.68, -28.82], [21.03, -28.97], [21.18, -29.32], [21.53, -29.47], [21.75, -30.0], [21.65, -30.25], [21.68, -30.32], [21.75, -30.35], [22.0, -30.25], [22.25, -30.35], [22.32, -30.32], [22.47, -29.97], [23.0, -29.75], [23.53, -29.97], [23.75, -30.5], [23.65, -30.75], [23.68, -30.82], [24.03, -30.97], [24.18, -31.32], [24.25, -31.35], [24.5, -31.25], [25.0, -31.46], [25.5, -31.25], [26.03, -31.47], [26.25, -32.0], [26.15, -32.25], [26.25, -32.5], [26.03, -33.03], [25.5, -33.25], [25.25, -33.15], [25.0, -33.25], [24.75, -33.15], [24.68, -33.18], [24.53, -33.53], [24.0, -33.75], [23.75, -33.65], [23.5, -33.75], [23.25, -33.65], [23.0, -33.75], [22.75, -33.65], [22.5, -33.75], [22.25, -33.65], [22.0, -33.75], [21.75, -33.65], [21.5, -33.75], [21.25, -33.65], [21.0, -33.75], [20.75, -33.65], [20.5, -33.75], [20.25, -33.65], [20.0, -33.75], [19.75, -33.65], [19.5, -33.75], [19.25, -33.65], [19.0, -33.75], [18.47, -33.53], [18.25, -33.0], [18.35, -32.75], [18.32, -32.68], [17.97, -32.53], [17.75, -32.0], [17.85, -31.75], [17.82, -31.68], [17.47, -31.53], [17.32, -31.18], [16.97, -31.03], [16.75, -30.5], [16.85, -30.25], [16.82, -30.18], [16.47, -30.03], [16.25, -29.5], [16.35, -29.25], [16.32, -29.18], [15.97, -29.03], [15.75, -28.5], [15.85, -28.25], [15.75, -28.0], [15.96, -27.5]], [[19.43, -28.57], [19.18, -28.68], [19.13, -28.8], [19.25, -28.85], [19.32, -28.82], [19.43, -28.57]]]]}, "2017-06-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[15.97, -26.47], [16.5, -26.25], [16.75, -26.35], [17.0, -26.25], [17.53, -26.47], [17.68, -26.82], [17.75, -26.85], [18.0, -26.75], [18.5, -26.96], [19.0, -26.75], [19.53, -26.97], [19.68, -27.32], [20.03, -27.47], [20.25, -28.0], [20.13, -28.3], [20.53, -28.47], [20.68, -28.82], [21.03, -28.97], [21.18, -29.32], [21.25, -29.35], [21.5, -29.25], [21.75, -29.35], [22.0, -29.25], [22.25, -29.35], [22.5, -29.25], [23.03, -29.47], [23.18, -29.82], [23.53, -29.97], [23.68, -30.32], [23.75, -30.35], [24.0, -30.25], [24.25, -30.35], [24.5, -30.25], [25.03, -30.47], [25.18, -30.82], [25.25, -30.85], [25.5, -30.75], [25.75, -30.85], [26.0, -30.75], [26.53, -30.97], [26.75, -31.5], [26.65, -31.75], [26.75, -32.0], [26.65, -32.25], [26.75, -32.5], [26.53, -33.03], [26.0, -33.25], [25.75, -33.15], [25.5, -33.25], [25.25, -33.15], [25.0, -33.25], [24.75, -33.15], [24.68, -33.18], [24.53, -33.53], [24.0, -33.75], [23.75, -33.65], [23.5, -33.75], [23.25, -33.65], [23.0, -33.75], [22.75, -33.65], [22.5, -33.75], [22.25, -33.65], [22.0, -33.75], [21.75, -33.65], [21.5, -33.75], [21.25, -33.65], [21.0, -33.75], [20.75, -33.65], [20.5, -33.75], [20.25, -33.65], [20.0, -33.75], [19.75, -33.65], [19.5, -33.75], [19.25, -33.65], [19.0, -33.75], [18.47, -33.53], [18.25, -33.0], [18.35, -32.75], [18.25, -32.5], [18.35, -32.25], [18.25, -32.0], [18.35, -31.75], [18.25, -31.5], [18.35, -31.25], [18.32, -31.18], [17.97, -31.03], [17.82, -30.68], [17.47, -30.53], [17.32, -30.18], [16.97, -30.03], [16.82, -29.68], [16.47, -29.53], [16.25, -29.0], [16.35, -28.75], [16.32, -28.68], [15.97, -28.53], [15.75, -28.0], [15.96, -27.5], [15.75, -27.0], [15.97, -26.47]]]]}, "2017-06-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[15.97, -26.47], [16.5, -26.25], [16.75, -26.35], [17.0, -26.25], [17.53, -26.47], [17.68, -26.82], [17.75, -26.85], [18.0, -26.75], [18.5, -26.96], [19.0, -26.75], [19.53, -26.97], [19.68, -27.32], [20.03, -27.47], [20.25, -28.0], [20.13, -28.3], [20.53, -28.47], [20.68, -28.82], [21.03, -28.97], [21.18, -29.32], [21.25, -29.35], [21.5, -29.25], [21.75, -29.35], [22.0, -29.25], [22.25, -29.35], [22.5, -29.25], [23.03, -29.47], [23.18, -29.82], [23.53, -29.97], [23.68, -30.32], [23.75, -30.35], [24.0, -30.25], [24.25, -30.35], [24.5, -30.25], [25.03, -30.47], [25.18, -30.82], [25.25, -30.85], [25.5, -30.75], [25.75, -30.85], [26.0, -30.75], [26.3, -30.87], [26.47, -30.47], [27.0, -30.25], [27.53, -30.47], [27.7, -30.87], [28.0, -30.75], [28.53, -30.97], [28.75, -31.5], [28.53, -32.03], [28.18, -32.18], [28.03, -32.53], [27.5, -32.75], [27.25, -32.65], [27.0, -32.75], [26.75, -32.65], [26.68, -32.68], [26.53, -33.03], [26.0, -33.25], [25.75, -33.15], [25.5, -33.25], [25.25, -33.15], [25.0, -33.25], [24.75, -33.15], [24.68, -33.18], [24.53, -33.53], [24.0, -33.75], [23.75, -33.65], [23.5, -33.75], [23.25, -33.65], [23.0, -33.75], [22.75, -33.65], [22.5, -33.75], [22.25, -33.65], [22.0, -33.75], [21.75, -33.65], [21.5, -33.75], [21.25, -33.65], [21.0, -33.75], [20.75, -33.65], [20.5, -33.75], [20.25, -33.65], [20.0, -33.75], [19.75, -33.65], [19.5, -33.75], [19.25, -33.65], [19.0, -33.75], [18.47, -33.53], [18.25, -33.0], [18.35, -32.75], [18.25, -32.5], [18.35, -32.25], [18.25, -32.0], [18.35, -31.75], [18.25, -31.5], [18.35, -31.25], [18.32, -31.18], [17.97, -31.03], [17.82, -30.68], [17.47, -30.53], [17.32, -30.18], [16.97, -30.03], [16.82, -29.68], [16.47, -29.53], [16.25, -29.0], [16.35, -28.75], [16.32, -28.68], [15.97, -28.53], [15.75, -28.0], [15.96, -27.5], [15.75, -27.0], [15.97, -26.47]]]]}, "2017-06-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[16.97, -28.03], [16.75, -27.5], [16.97, -26.97], [17.5, -26.75], [17.75, -26.85], [18.0, -26.75], [18.5, -26.96], [19.0, -26.75], [19.53, -26.97], [19.68, -27.32], [20.03, -27.47], [20.25, -28.0], [20.13, -28.3], [20.53, -28.47], [20.68, -28.82], [21.03, -28.97], [21.18, -29.32], [21.25, -29.35], [21.5, -29.25], [21.75, -29.35], [22.0, -29.25], [22.25, -29.35], [22.5, -29.25], [23.03, -29.47], [23.18, -29.82], [23.53, -29.97], [23.68, -30.32], [23.75, -30.35], [24.0, -30.25], [24.25, -30.35], [24.5, -30.25], [25.03, -30.47], [25.18, -30.82], [25.25, -30.85], [25.5, -30.75], [25.75, -30.85], [26.0, -30.75], [26.3, -30.87], [26.47, -30.47], [27.0, -30.25], [27.53, -30.47], [27.7, -30.87], [28.0, -30.75], [28.53, -30.97], [28.75, -31.5], [28.53, -32.03], [28.18, -32.18], [28.03, -32.53], [27.5, -32.75], [27.25, -32.65], [27.0, -32.75], [26.75, -32.65], [26.68, -32.68], [26.53, -33.03], [26.0, -33.25], [25.75, -33.15], [25.5, -33.25], [25.25, -33.15], [25.0, -33.25], [24.75, -33.15], [24.68, -33.18], [24.53, -33.53], [24.0, -33.75], [23.75, -33.65], [23.5, -33.75], [23.25, -33.65], [23.0, -33.75], [22.75, -33.65], [22.5, -33.75], [22.25, -33.65], [22.0, -33.75], [21.75, -33.65], [21.5, -33.75], [21.25, -33.65], [21.0, -33.75], [20.75, -33.65], [20.5, -33.75], [20.25, -33.65], [20.0, -33.75], [19.75, -33.65], [19.5, -33.75], [19.25, -33.65], [19.0, -33.75], [18.47, -33.53], [18.25, -33.0], [18.35, -32.75], [18.25, -32.5], [18.35, -32.25], [18.25, -32.0], [18.35, -31.75], [18.25, -31.5], [18.35, -31.25], [18.25, -31.0], [18.35, -30.75], [18.25, -30.5], [18.35, -30.25], [18.25, -30.0], [18.35, -29.75], [18.25, -29.5], [18.35, -29.25], [18.32, -29.18], [17.97, -29.03], [17.75, -28.5], [17.85, -28.25], [17.82, -28.18], [17.75, -28.15], [17.5, -28.25], [16.97, -28.03]]]]}, "2017-06-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[24.97, -32.03], [24.75, -31.5], [24.97, -30.97], [25.5, -30.75], [26.03, -30.97], [26.2, -31.37], [26.32, -31.32], [26.35, -31.25], [26.25, -31.0], [26.47, -30.47], [27.0, -30.25], [27.53, -30.47], [27.7, -30.87], [28.0, -30.75], [28.53, -30.97], [28.75, -31.5], [28.53, -32.03], [28.18, -32.18], [28.03, -32.53], [27.5, -32.75], [27.25, -32.65], [27.0, -32.75], [26.75, -32.65], [26.5, -32.75], [25.97, -32.53], [25.8, -32.12], [25.5, -32.25], [24.97, -32.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 9.237728773704191}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 5.925162247026036}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [19.46917175654505, 18.043719406113496, 17.742016862108073, 17.253065310065892, 17.91206217867324, 17.659396196091393, 13.959341156332414]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [21.408462049400327, 23.443796050596063, 21.91057230956517, 22.26888648586288, 23.18726790506281, 22.259223735340697, 16.438214772913682]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.9374616152865975, 5.809462681191874, 5.675415339212078, 5.469179278340797, 6.2771700477226675, 6.538422015830689, 4.120994230846001]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [6.498423784165027, 8.965384750534213, 8.32306193043263, 7.424070474575785, 8.579425522285248, 9.237728773704191, 4.7958393834159665]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.8925671622370461, 1.9069472925270696, 1.7873438713032415, 1.7409226954076482, 1.9834583089639017, 2.0243767599846683, 1.4233235808173477]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.492313951719542, 3.2517862868761034, 2.4085625838876896, 2.525092946412763, 2.85499892653252, 2.79367987542267, 1.6500922977289014]}}