{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:10:32.398947", "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-Mar-16_to_2018-Mar-26_16.0_-7.5"}, "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": 2018030002215}, "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": "March 16 2018"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 26 2018"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 11}, "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": 95034.5396111686}, "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": ["Angola", "Congo DRC"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Central-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": -7.5}, "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": 16.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "16.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 14.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 18.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -8.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -5.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2018-03-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[15.25, -7.5], [15.47, -6.97], [16.0, -6.75], [16.25, -6.85], [16.32, -6.82], [16.47, -6.47], [17.0, -6.25], [17.25, -6.35], [17.5, -6.25], [17.75, -6.35], [18.0, -6.25], [18.53, -6.47], [18.68, -6.82], [19.03, -6.97], [19.25, -7.5], [19.15, -7.75], [19.25, -8.0], [19.03, -8.53], [18.5, -8.75], [18.25, -8.65], [18.0, -8.75], [17.75, -8.65], [17.5, -8.75], [17.0, -8.54], [16.5, -8.75], [15.97, -8.53], [15.82, -8.18], [15.47, -8.03], [15.25, -7.5]]]]}, "2018-03-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[15.25, -7.5], [15.47, -6.97], [16.0, -6.75], [16.25, -6.85], [16.32, -6.82], [16.47, -6.47], [17.0, -6.25], [17.25, -6.35], [17.5, -6.25], [17.75, -6.35], [18.0, -6.25], [18.53, -6.47], [18.68, -6.82], [19.03, -6.97], [19.25, -7.5], [19.15, -7.75], [19.25, -8.0], [19.03, -8.53], [18.5, -8.75], [18.25, -8.65], [18.0, -8.75], [17.75, -8.65], [17.5, -8.75], [17.0, -8.54], [16.5, -8.75], [15.97, -8.53], [15.82, -8.18], [15.47, -8.03], [15.25, -7.5]]]]}, "2018-03-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[15.25, -7.5], [15.47, -6.97], [16.0, -6.75], [16.25, -6.85], [16.32, -6.82], [16.47, -6.47], [17.0, -6.25], [17.25, -6.35], [17.5, -6.25], [17.75, -6.35], [18.0, -6.25], [18.53, -6.47], [18.68, -6.82], [19.03, -6.97], [19.25, -7.5], [19.15, -7.75], [19.25, -8.0], [19.03, -8.53], [18.5, -8.75], [18.25, -8.65], [18.0, -8.75], [17.75, -8.65], [17.5, -8.75], [17.0, -8.54], [16.5, -8.75], [15.97, -8.53], [15.82, -8.18], [15.47, -8.03], [15.25, -7.5]]]]}, "2018-03-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[15.35, -6.75], [15.25, -6.5], [15.35, -6.25], [15.25, -6.0], [15.47, -5.47], [16.0, -5.25], [16.25, -5.35], [16.5, -5.25], [17.03, -5.47], [17.25, -6.0], [17.15, -6.25], [17.18, -6.32], [17.25, -6.35], [17.5, -6.25], [17.75, -6.35], [18.0, -6.25], [18.53, -6.47], [18.68, -6.82], [19.03, -6.97], [19.25, -7.5], [19.15, -7.75], [19.25, -8.0], [19.03, -8.53], [18.5, -8.75], [18.25, -8.65], [18.0, -8.75], [17.75, -8.65], [17.5, -8.75], [17.0, -8.54], [16.5, -8.75], [15.97, -8.53], [15.82, -8.18], [15.47, -8.03], [15.25, -7.5], [15.35, -7.25], [15.25, -7.0], [15.35, -6.75]]]]}, "2018-03-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[14.47, -7.53], [14.25, -7.0], [14.47, -6.47], [15.0, -6.25], [15.25, -6.35], [15.32, -6.32], [15.35, -6.25], [15.25, -6.0], [15.47, -5.47], [16.0, -5.25], [16.25, -5.35], [16.5, -5.25], [17.03, -5.47], [17.25, -6.0], [17.15, -6.25], [17.18, -6.32], [17.53, -6.47], [17.75, -7.0], [17.53, -7.53], [17.0, -7.75], [16.75, -7.65], [16.68, -7.68], [16.53, -8.03], [16.0, -8.25], [15.47, -8.03], [15.32, -7.68], [15.25, -7.65], [15.0, -7.75], [14.47, -7.53]]]]}, "2018-03-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[14.25, -7.0], [14.47, -6.47], [15.0, -6.25], [15.25, -6.35], [15.32, -6.32], [15.35, -6.25], [15.25, -6.0], [15.47, -5.47], [16.0, -5.25], [16.25, -5.35], [16.5, -5.25], [17.03, -5.47], [17.25, -6.0], [17.15, -6.25], [17.25, -6.5], [17.15, -6.75], [17.25, -7.0], [17.04, -7.5], [17.25, -8.0], [17.03, -8.53], [16.5, -8.75], [16.25, -8.65], [16.0, -8.75], [15.75, -8.65], [15.5, -8.75], [15.25, -8.65], [15.0, -8.75], [14.75, -8.65], [14.5, -8.75], [13.97, -8.53], [13.75, -8.0], [13.97, -7.47], [14.32, -7.32], [14.35, -7.25], [14.25, -7.0]]]]}, "2018-03-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[14.25, -7.0], [14.47, -6.47], [15.0, -6.25], [15.25, -6.35], [15.5, -6.25], [15.75, -6.35], [16.0, -6.25], [16.53, -6.47], [16.75, -7.0], [16.65, -7.25], [16.68, -7.32], [16.75, -7.35], [17.0, -7.25], [17.53, -7.47], [17.75, -8.0], [17.53, -8.53], [17.18, -8.68], [17.03, -9.03], [16.5, -9.25], [16.25, -9.15], [16.0, -9.25], [15.47, -9.03], [15.32, -8.68], [15.25, -8.65], [15.0, -8.75], [14.75, -8.65], [14.5, -8.75], [13.97, -8.53], [13.75, -8.0], [13.97, -7.47], [14.32, -7.32], [14.35, -7.25], [14.25, -7.0]]]]}, "2018-03-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[14.25, -7.0], [14.35, -6.75], [14.25, -6.5], [14.47, -5.97], [14.82, -5.82], [14.97, -5.47], [15.5, -5.25], [15.75, -5.35], [16.0, -5.25], [16.25, -5.35], [16.5, -5.25], [17.03, -5.47], [17.25, -6.0], [17.04, -6.5], [17.25, -7.0], [17.15, -7.25], [17.18, -7.32], [17.53, -7.47], [17.75, -8.0], [17.53, -8.53], [17.18, -8.68], [17.03, -9.03], [16.5, -9.25], [16.25, -9.15], [16.0, -9.25], [15.47, -9.03], [15.32, -8.68], [15.25, -8.65], [15.0, -8.75], [14.75, -8.65], [14.5, -8.75], [13.97, -8.53], [13.75, -8.0], [13.97, -7.47], [14.32, -7.32], [14.35, -7.25], [14.25, -7.0]]]]}, "2018-03-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[14.25, -7.0], [14.35, -6.75], [14.25, -6.5], [14.47, -5.97], [14.82, -5.82], [14.97, -5.47], [15.5, -5.25], [15.75, -5.35], [16.0, -5.25], [16.25, -5.35], [16.5, -5.25], [17.03, -5.47], [17.25, -6.0], [17.04, -6.5], [17.25, -7.0], [17.15, -7.25], [17.18, -7.32], [17.53, -7.47], [17.75, -8.0], [17.53, -8.53], [17.18, -8.68], [17.03, -9.03], [16.5, -9.25], [16.25, -9.15], [16.0, -9.25], [15.47, -9.03], [15.32, -8.68], [15.25, -8.65], [15.0, -8.75], [14.75, -8.65], [14.5, -8.75], [13.97, -8.53], [13.75, -8.0], [13.97, -7.47], [14.32, -7.32], [14.35, -7.25], [14.25, -7.0]]]]}, "2018-03-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[14.25, -7.0], [14.35, -6.75], [14.25, -6.5], [14.47, -5.97], [14.82, -5.82], [14.97, -5.47], [15.5, -5.25], [15.75, -5.35], [16.0, -5.25], [16.25, -5.35], [16.5, -5.25], [17.03, -5.47], [17.25, -6.0], [17.04, -6.5], [17.25, -7.0], [17.15, -7.25], [17.25, -7.5], [17.03, -8.03], [16.68, -8.18], [16.65, -8.25], [16.75, -8.5], [16.53, -9.03], [16.0, -9.25], [15.47, -9.03], [15.32, -8.68], [15.25, -8.65], [15.0, -8.75], [14.75, -8.65], [14.5, -8.75], [13.97, -8.53], [13.75, -8.0], [13.97, -7.47], [14.32, -7.32], [14.35, -7.25], [14.25, -7.0]]]]}, "2018-03-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[14.75, -7.0], [14.97, -6.47], [15.32, -6.32], [15.35, -6.25], [15.25, -6.0], [15.47, -5.47], [16.0, -5.25], [16.25, -5.35], [16.5, -5.25], [17.03, -5.47], [17.25, -6.0], [17.03, -6.53], [16.68, -6.68], [16.54, -7.0], [16.75, -7.5], [16.53, -8.03], [16.0, -8.25], [15.47, -8.03], [15.32, -7.68], [14.97, -7.53], [14.75, -7.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.2479467403028934}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.8704131860892395}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.870217575626214, 25.41568864370072, 25.253393391982968, 25.787668989179508, 25.727623041974084, 25.29581481445706, 24.491673362993538, 25.083010551976088, 25.121423361314612, 25.27668837049623, 25.660302604061542]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [28.205938953839393, 27.906096470569025, 27.243211854100934, 27.945453910219726, 27.782828684899812, 28.479519420416977, 26.343470891959043, 28.015699467064735, 27.915562183902807, 29.047533391216973, 27.896488415681404]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.020953538222965, 1.6914370438087654, 1.5809623613898018, 1.8792904814339308, 1.7881189872700531, 2.107555264951003, 1.7628729737939994, 1.8185535995843183, 1.8208346018784622, 2.138048688411683, 1.6757403166100857]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.8533786713117024, 2.6826044885226565, 2.0841898298643287, 2.8017501017744166, 2.0344919913699187, 2.8965345691041193, 2.3285636671236034, 3.0976422149248037, 2.8373913154335355, 3.2479467403028934, 2.1324180465084623]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.959514857102412, 1.652409870743818, 1.5801821885049252, 1.844539779535096, 1.7416369322006588, 2.2546816012544846, 1.8985062655938376, 1.8588065199864687, 1.859635007419544, 2.1468578779075917, 1.5739951897729045]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.416466822067568, 2.2499624973548094, 1.8022065329209924, 2.389790801719406, 1.8989628916387162, 2.974390850750236, 2.365121354367046, 3.060400414714853, 2.7438448333578016, 2.650107281376814, 1.7209677263978673]}}