{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:19:00.807433", "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": "2019-Jan-11_to_2019-Jan-26_12.0_5.5"}, "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": 2019010001823}, "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": "January 11 2019"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 26 2019"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 16}, "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": 95420.40772991884}, "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": ["Cameroon", "Central African Republic", "Nigeria"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Central-Africa", "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": 5.5}, "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": 12.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "12.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 9.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 16.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 2.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 7.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2019-01-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[13.47, 4.47], [13.25, 5.0], [13.47, 5.53], [14.0, 5.75], [14.53, 5.53], [14.75, 5.0], [14.53, 4.47], [14.0, 4.25], [13.47, 4.47]]], [[[11.47, 4.97], [11.25, 5.5], [11.47, 6.03], [12.0, 6.25], [12.53, 6.03], [12.75, 5.5], [12.53, 4.97], [12.0, 4.75], [11.47, 4.97]]]]}, "2019-01-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[12.97, 5.53], [13.5, 5.75], [13.75, 5.65], [14.0, 5.75], [14.53, 5.53], [14.75, 5.0], [14.63, 4.7], [14.75, 4.65], [15.0, 4.75], [15.25, 4.65], [15.5, 4.75], [15.75, 4.65], [16.0, 4.75], [16.53, 4.53], [16.75, 4.0], [16.53, 3.47], [16.0, 3.25], [15.75, 3.35], [15.63, 3.3], [15.75, 3.0], [15.53, 2.47], [15.0, 2.25], [14.47, 2.47], [14.32, 2.82], [13.97, 2.97], [13.75, 3.5], [13.85, 3.75], [13.8, 3.88], [13.5, 3.75], [13.2, 3.88], [13.03, 3.47], [12.5, 3.25], [11.97, 3.47], [11.75, 4.0], [11.97, 4.53], [12.5, 4.75], [12.8, 4.63], [12.85, 4.75], [12.75, 5.0], [12.97, 5.53]]], [[[11.47, 4.97], [11.25, 5.5], [11.47, 6.03], [12.0, 6.25], [12.53, 6.03], [12.75, 5.5], [12.53, 4.97], [12.0, 4.75], [11.47, 4.97]]]]}, "2019-01-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[12.0, 6.25], [12.53, 6.03], [12.68, 5.68], [12.75, 5.65], [13.0, 5.75], [13.25, 5.65], [13.5, 5.75], [13.75, 5.65], [14.0, 5.75], [14.53, 5.53], [14.75, 5.0], [14.65, 4.75], [14.68, 4.68], [14.75, 4.65], [15.0, 4.75], [15.25, 4.65], [15.5, 4.75], [15.75, 4.65], [16.0, 4.75], [16.53, 4.53], [16.75, 4.0], [16.53, 3.47], [16.0, 3.25], [15.75, 3.35], [15.63, 3.3], [15.75, 3.0], [15.53, 2.47], [15.0, 2.25], [14.47, 2.47], [14.32, 2.82], [13.97, 2.97], [13.82, 3.32], [13.75, 3.35], [13.5, 3.25], [13.25, 3.35], [13.0, 3.25], [12.75, 3.35], [12.5, 3.25], [11.97, 3.47], [11.75, 4.0], [11.85, 4.25], [11.82, 4.32], [11.75, 4.35], [11.5, 4.25], [10.97, 4.47], [10.75, 5.0], [10.97, 5.53], [11.32, 5.68], [11.47, 6.03], [12.0, 6.25]]]]}, "2019-01-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[12.0, 6.25], [12.53, 6.03], [12.68, 5.68], [12.75, 5.65], [13.0, 5.75], [13.25, 5.65], [13.5, 5.75], [13.75, 5.65], [14.0, 5.75], [14.53, 5.53], [14.75, 5.0], [14.65, 4.75], [14.68, 4.68], [14.75, 4.65], [15.0, 4.75], [15.25, 4.65], [15.5, 4.75], [15.75, 4.65], [16.0, 4.75], [16.53, 4.53], [16.75, 4.0], [16.53, 3.47], [16.0, 3.25], [15.75, 3.35], [15.63, 3.3], [15.75, 3.0], [15.53, 2.47], [15.0, 2.25], [14.47, 2.47], [14.32, 2.82], [13.97, 2.97], [13.82, 3.32], [13.75, 3.35], [13.5, 3.25], [13.25, 3.35], [13.0, 3.25], [12.75, 3.35], [12.5, 3.25], [11.97, 3.47], [11.75, 4.0], [11.85, 4.25], [11.82, 4.32], [11.75, 4.35], [11.5, 4.25], [10.97, 4.47], [10.75, 5.0], [10.97, 5.53], [11.32, 5.68], [11.47, 6.03], [12.0, 6.25]]]]}, "2019-01-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[12.0, 6.25], [12.53, 6.03], [12.68, 5.68], [12.75, 5.65], [13.0, 5.75], [13.25, 5.65], [13.5, 5.75], [13.75, 5.65], [14.0, 5.75], [14.53, 5.53], [14.75, 5.0], [14.65, 4.75], [14.75, 4.5], [14.65, 4.25], [14.75, 4.0], [14.57, 3.57], [15.0, 3.75], [15.53, 3.53], [15.75, 3.0], [15.53, 2.47], [15.0, 2.25], [14.47, 2.47], [14.25, 3.0], [14.43, 3.43], [14.0, 3.25], [13.75, 3.35], [13.5, 3.25], [13.25, 3.35], [13.0, 3.25], [12.47, 3.47], [12.32, 3.82], [11.97, 3.97], [11.82, 4.32], [11.75, 4.35], [11.5, 4.25], [10.97, 4.47], [10.75, 5.0], [10.97, 5.53], [11.32, 5.68], [11.47, 6.03], [12.0, 6.25]]]]}, "2019-01-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[12.0, 6.25], [12.53, 6.03], [12.68, 5.68], [12.75, 5.65], [13.0, 5.75], [13.25, 5.65], [13.5, 5.75], [13.75, 5.65], [14.0, 5.75], [14.53, 5.53], [14.75, 5.0], [14.65, 4.75], [14.75, 4.5], [14.65, 4.25], [14.75, 4.0], [14.57, 3.57], [15.0, 3.75], [15.53, 3.53], [15.75, 3.0], [15.53, 2.47], [15.0, 2.25], [14.47, 2.47], [14.25, 3.0], [14.43, 3.43], [14.0, 3.25], [13.75, 3.35], [13.5, 3.25], [13.25, 3.35], [13.0, 3.25], [12.47, 3.47], [12.32, 3.82], [11.97, 3.97], [11.82, 4.32], [11.75, 4.35], [11.5, 4.25], [10.97, 4.47], [10.75, 5.0], [10.97, 5.53], [11.32, 5.68], [11.47, 6.03], [12.0, 6.25]]]]}, "2019-01-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[11.47, 6.03], [12.0, 6.25], [12.53, 6.03], [12.68, 5.68], [12.75, 5.65], [13.0, 5.75], [13.25, 5.65], [13.5, 5.75], [13.75, 5.65], [14.0, 5.75], [14.53, 5.53], [14.75, 5.0], [14.65, 4.75], [14.75, 4.5], [14.53, 3.97], [14.0, 3.75], [13.75, 3.85], [13.5, 3.75], [12.97, 3.97], [12.82, 4.32], [12.75, 4.35], [12.5, 4.25], [12.25, 4.35], [12.0, 4.25], [11.47, 4.47], [11.25, 5.0], [11.35, 5.25], [11.25, 5.5], [11.47, 6.03]]]]}, "2019-01-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[11.5, 5.75], [12.03, 5.53], [12.25, 5.0], [12.03, 4.47], [11.5, 4.25], [10.97, 4.47], [10.75, 5.0], [10.97, 5.53], [11.5, 5.75]]]]}, "2019-01-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[12.0, 6.25], [12.53, 6.03], [12.75, 5.5], [12.65, 5.25], [12.75, 5.0], [12.53, 4.47], [12.0, 4.25], [11.75, 4.35], [11.5, 4.25], [10.97, 4.47], [10.75, 5.0], [10.97, 5.53], [11.32, 5.68], [11.47, 6.03], [12.0, 6.25]]]]}, "2019-01-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[12.0, 6.25], [12.53, 6.03], [12.75, 5.5], [12.65, 5.25], [12.75, 5.0], [12.53, 4.47], [12.0, 4.25], [11.75, 4.35], [11.5, 4.25], [10.97, 4.47], [10.75, 5.0], [10.97, 5.53], [11.32, 5.68], [11.47, 6.03], [12.0, 6.25]]]]}, "2019-01-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[8.75, 7.0], [8.97, 7.53], [9.32, 7.68], [9.47, 8.03], [10.0, 8.25], [10.25, 8.15], [10.5, 8.25], [11.03, 8.03], [11.25, 7.5], [11.15, 7.25], [11.25, 7.0], [11.15, 6.75], [11.25, 6.5], [11.15, 6.25], [11.2, 6.13], [11.5, 6.25], [11.75, 6.15], [12.0, 6.25], [12.53, 6.03], [12.75, 5.5], [12.65, 5.25], [12.75, 5.0], [12.53, 4.47], [12.0, 4.25], [11.75, 4.35], [11.5, 4.25], [10.97, 4.47], [10.75, 5.0], [10.85, 5.25], [10.8, 5.38], [10.5, 5.25], [9.97, 5.47], [9.82, 5.82], [9.47, 5.97], [9.32, 6.32], [8.97, 6.47], [8.75, 7.0]]]]}, "2019-01-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[8.75, 7.0], [8.97, 7.53], [9.32, 7.68], [9.47, 8.03], [10.0, 8.25], [10.25, 8.15], [10.5, 8.25], [11.03, 8.03], [11.25, 7.5], [11.15, 7.25], [11.25, 7.0], [11.15, 6.75], [11.18, 6.68], [11.53, 6.53], [11.68, 6.18], [11.75, 6.15], [12.0, 6.25], [12.53, 6.03], [12.75, 5.5], [12.65, 5.25], [12.75, 5.0], [12.53, 4.47], [12.0, 4.25], [11.75, 4.35], [11.5, 4.25], [10.97, 4.47], [10.75, 5.0], [10.85, 5.25], [10.82, 5.32], [10.75, 5.35], [10.5, 5.25], [9.97, 5.47], [9.82, 5.82], [9.47, 5.97], [9.32, 6.32], [8.97, 6.47], [8.75, 7.0]]]]}, "2019-01-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[8.75, 7.0], [8.97, 7.53], [9.32, 7.68], [9.47, 8.03], [10.0, 8.25], [10.25, 8.15], [10.5, 8.25], [11.03, 8.03], [11.25, 7.5], [11.15, 7.25], [11.25, 7.0], [11.15, 6.75], [11.18, 6.68], [11.53, 6.53], [11.68, 6.18], [11.75, 6.15], [12.0, 6.25], [12.53, 6.03], [12.75, 5.5], [12.53, 4.97], [12.0, 4.75], [11.75, 4.85], [11.5, 4.75], [10.97, 4.97], [10.82, 5.32], [10.75, 5.35], [10.5, 5.25], [9.97, 5.47], [9.82, 5.82], [9.47, 5.97], [9.32, 6.32], [8.97, 6.47], [8.75, 7.0]]]]}, "2019-01-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[11.0, 6.75], [11.53, 6.53], [11.75, 6.0], [11.53, 5.47], [11.0, 5.25], [10.47, 5.47], [10.25, 6.0], [10.47, 6.53], [11.0, 6.75]]]]}, "2019-01-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[11.0, 6.75], [11.53, 6.53], [11.75, 6.0], [11.53, 5.47], [11.0, 5.25], [10.47, 5.47], [10.25, 6.0], [10.47, 6.53], [11.0, 6.75]]]]}, "2019-01-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[11.0, 6.75], [11.53, 6.53], [11.75, 6.0], [11.53, 5.47], [11.0, 5.25], [10.47, 5.47], [10.25, 6.0], [10.47, 6.53], [11.0, 6.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.542978582519595}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.9852692659601465}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.280405820443093, 26.068997876262927, 26.717106845138574, 26.47181775538172, 26.769721364524912, 26.89561754886978, 26.853879371735047, 27.67987920658959, 27.67358529650238, 27.404048597016583, 27.36412160490073, 27.999602922636313, 27.490994469221732, 27.095961698246526, 27.38647060527302, 27.247285279343885]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.3110886321183, 26.771061068243455, 27.828910006155184, 27.948269515309505, 28.146729987310152, 28.197171181009196, 27.84799404066962, 27.67987920658959, 28.144437205778274, 27.824796486348134, 30.38853084738122, 31.095381906678142, 31.049998319299164, 27.095961698246526, 27.38647060527302, 27.247285279343885]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.5891647008242273, 1.775186130741929, 2.188473129539973, 1.8602020337328544, 1.9490018847325208, 1.9990225940157302, 1.6570629404228043, 1.4924515561681346, 1.7363098618839103, 1.4394375109044404, 1.930618048653206, 2.5298220831709055, 2.123398687576665, 1.68468561362522, 1.9129520611658108, 1.7181814175873455]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.6592926511311248, 2.2891235376453665, 2.661043707749343, 2.2925968187561807, 2.513174743664763, 2.3271764986658923, 2.058597569817607, 1.4924515561681346, 1.7579356684994423, 1.5291006930391973, 2.7326463311938483, 3.542978582519595, 3.0118409227981147, 1.68468561362522, 1.9129520611658108, 1.7181814175873455]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.356404705409393, 1.4155049756125426, 1.7313615144056322, 1.4587266762925348, 1.5854370193980274, 1.7199236167622134, 1.5213594605123202, 1.2709111791904346, 1.598927330086678, 1.3651144465358798, 1.6193678656740012, 2.107518981559052, 1.652973937892054, 1.3478890800826329, 1.5062277950914482, 1.3603156638196625]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.3643382160157418, 1.7838559159215162, 2.2039445145428003, 1.8705309613465944, 2.081345586408427, 2.0273308454613033, 1.9126094852133828, 1.2709111791904346, 1.687371815633682, 1.501810529784172, 1.9338714351253647, 2.394098204238421, 1.8698852769123377, 1.3478890800826329, 1.5062277950914482, 1.3603156638196625]}}