{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:44:34.689253", "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": "2010-Apr-25_to_2010-Apr-30_35.5_8.0"}, "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": 2010040002272}, "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": "April 25 2010"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 30 2010"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 230970.4041098095}, "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": ["Eritrea", "Ethiopia", "South Sudan", "Sudan"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.Eastern-Africa", "Sahara"]}, "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": 8.0}, "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": 35.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "35.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 30.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 38.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 7.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 15.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2010-04-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[33.75, 9.65], [34.0, 9.75], [34.53, 9.53], [34.75, 9.0], [34.65, 8.75], [34.68, 8.68], [35.03, 8.53], [35.25, 8.0], [35.03, 7.47], [34.5, 7.25], [33.97, 7.47], [33.82, 7.82], [33.75, 7.85], [33.5, 7.75], [33.25, 7.85], [33.0, 7.75], [32.47, 7.97], [32.25, 8.5], [32.47, 9.03], [32.82, 9.18], [32.97, 9.53], [33.5, 9.75], [33.75, 9.65]]], [[[30.97, 11.03], [31.5, 11.25], [32.03, 11.03], [32.25, 10.5], [32.15, 10.25], [32.25, 10.0], [32.03, 9.47], [31.68, 9.32], [31.53, 8.97], [31.0, 8.75], [30.47, 8.97], [30.25, 9.5], [30.47, 10.03], [30.82, 10.18], [30.85, 10.25], [30.75, 10.5], [30.97, 11.03]]]]}, "2010-04-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[30.97, 11.03], [31.5, 11.25], [32.03, 11.03], [32.25, 10.5], [32.15, 10.25], [32.18, 10.18], [32.25, 10.15], [32.5, 10.25], [32.75, 10.15], [33.0, 10.25], [33.25, 10.15], [33.32, 10.18], [33.47, 10.53], [34.0, 10.75], [34.5, 10.54], [35.0, 10.75], [35.5, 10.54], [36.0, 10.75], [36.5, 10.54], [37.0, 10.75], [37.53, 10.53], [37.75, 10.0], [37.65, 9.75], [37.75, 9.5], [37.65, 9.25], [37.75, 9.0], [37.53, 8.47], [37.0, 8.25], [36.7, 8.38], [36.53, 7.97], [36.18, 7.82], [36.15, 7.75], [36.25, 7.5], [36.03, 6.97], [35.5, 6.75], [35.25, 6.85], [35.0, 6.75], [34.75, 6.85], [34.5, 6.75], [34.25, 6.85], [34.0, 6.75], [33.47, 6.97], [33.25, 7.5], [33.35, 7.75], [33.32, 7.82], [33.25, 7.85], [33.0, 7.75], [32.75, 7.85], [32.5, 7.75], [32.25, 7.85], [32.0, 7.75], [31.47, 7.97], [31.25, 8.5], [31.35, 8.75], [31.3, 8.88], [31.0, 8.75], [30.47, 8.97], [30.25, 9.5], [30.47, 10.03], [30.82, 10.18], [30.85, 10.25], [30.75, 10.5], [30.97, 11.03]]], [[[36.47, 12.53], [37.0, 12.75], [37.53, 12.53], [37.68, 12.18], [38.03, 12.03], [38.25, 11.5], [38.03, 10.97], [37.5, 10.75], [36.97, 10.97], [36.82, 11.32], [36.47, 11.47], [36.25, 12.0], [36.47, 12.53]]]]}, "2010-04-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[30.35, 10.25], [30.25, 10.5], [30.47, 11.03], [31.0, 11.25], [31.25, 11.15], [31.5, 11.25], [32.03, 11.03], [32.25, 10.5], [32.15, 10.25], [32.18, 10.18], [32.25, 10.15], [32.5, 10.25], [32.75, 10.15], [33.0, 10.25], [33.25, 10.15], [33.32, 10.18], [33.47, 10.53], [34.0, 10.75], [34.5, 10.54], [34.82, 10.68], [34.97, 11.03], [35.32, 11.18], [35.35, 11.25], [35.25, 11.5], [35.35, 11.75], [35.25, 12.0], [35.47, 12.53], [35.88, 12.7], [35.75, 13.0], [35.85, 13.25], [35.75, 13.5], [35.85, 13.75], [35.75, 14.0], [35.97, 14.53], [36.32, 14.68], [36.47, 15.03], [37.0, 15.25], [37.5, 15.04], [38.0, 15.25], [38.53, 15.03], [38.75, 14.5], [38.53, 13.97], [38.18, 13.82], [38.04, 13.5], [38.25, 13.0], [38.13, 12.7], [38.25, 12.65], [38.5, 12.75], [39.03, 12.53], [39.25, 12.0], [39.03, 11.47], [38.5, 11.25], [38.25, 11.35], [38.18, 11.32], [38.03, 10.97], [37.68, 10.82], [37.65, 10.75], [37.75, 10.5], [37.65, 10.25], [37.75, 10.0], [37.65, 9.75], [37.75, 9.5], [37.65, 9.25], [37.75, 9.0], [37.53, 8.47], [37.0, 8.25], [36.7, 8.38], [36.53, 7.97], [36.18, 7.82], [36.15, 7.75], [36.25, 7.5], [36.03, 6.97], [35.5, 6.75], [35.25, 6.85], [35.0, 6.75], [34.75, 6.85], [34.5, 6.75], [34.25, 6.85], [34.0, 6.75], [33.47, 6.97], [33.25, 7.5], [33.35, 7.75], [33.32, 7.82], [33.25, 7.85], [33.0, 7.75], [32.75, 7.85], [32.5, 7.75], [32.25, 7.85], [32.0, 7.75], [31.47, 7.97], [31.25, 8.5], [31.35, 8.75], [31.3, 8.88], [31.0, 8.75], [30.47, 8.97], [30.25, 9.5], [30.35, 9.75], [30.25, 10.0], [30.35, 10.25]]]]}, "2010-04-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[30.35, 10.25], [30.25, 10.5], [30.47, 11.03], [31.0, 11.25], [31.25, 11.15], [31.5, 11.25], [32.03, 11.03], [32.25, 10.5], [32.15, 10.25], [32.18, 10.18], [32.25, 10.15], [32.5, 10.25], [32.75, 10.15], [33.0, 10.25], [33.25, 10.15], [33.32, 10.18], [33.47, 10.53], [34.0, 10.75], [34.5, 10.54], [34.82, 10.68], [34.85, 10.75], [34.75, 11.0], [34.97, 11.53], [35.32, 11.68], [35.35, 11.75], [35.25, 12.0], [35.47, 12.53], [35.88, 12.7], [35.75, 13.0], [35.85, 13.25], [35.75, 13.5], [35.85, 13.75], [35.82, 13.82], [35.47, 13.97], [35.25, 14.5], [35.47, 15.03], [35.82, 15.18], [35.97, 15.53], [36.5, 15.75], [37.03, 15.53], [37.18, 15.18], [37.5, 15.04], [38.0, 15.25], [38.53, 15.03], [38.75, 14.5], [38.53, 13.97], [38.18, 13.82], [38.04, 13.5], [38.25, 13.0], [38.13, 12.7], [38.25, 12.65], [38.5, 12.75], [39.03, 12.53], [39.25, 12.0], [39.03, 11.47], [38.5, 11.25], [38.25, 11.35], [38.18, 11.32], [38.03, 10.97], [37.68, 10.82], [37.65, 10.75], [37.75, 10.5], [37.65, 10.25], [37.75, 10.0], [37.65, 9.75], [37.75, 9.5], [37.65, 9.25], [37.75, 9.0], [37.53, 8.47], [37.0, 8.25], [36.7, 8.38], [36.53, 7.97], [36.18, 7.82], [36.15, 7.75], [36.25, 7.5], [36.03, 6.97], [35.5, 6.75], [35.25, 6.85], [35.0, 6.75], [34.75, 6.85], [34.5, 6.75], [34.25, 6.85], [34.0, 6.75], [33.47, 6.97], [33.25, 7.5], [33.35, 7.75], [33.32, 7.82], [33.25, 7.85], [33.0, 7.75], [32.75, 7.85], [32.5, 7.75], [32.25, 7.85], [32.0, 7.75], [31.47, 7.97], [31.25, 8.5], [31.35, 8.75], [31.3, 8.88], [31.0, 8.75], [30.47, 8.97], [30.25, 9.5], [30.35, 9.75], [30.25, 10.0], [30.35, 10.25]]]]}, "2010-04-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[30.47, 11.03], [31.0, 11.25], [31.25, 11.15], [31.5, 11.25], [32.03, 11.03], [32.25, 10.5], [32.15, 10.25], [32.18, 10.18], [32.25, 10.15], [32.5, 10.25], [32.75, 10.15], [33.0, 10.25], [33.25, 10.15], [33.32, 10.18], [33.47, 10.53], [34.0, 10.75], [34.5, 10.54], [34.82, 10.68], [34.85, 10.75], [34.75, 11.0], [34.97, 11.53], [35.32, 11.68], [35.35, 11.75], [35.25, 12.0], [35.47, 12.53], [35.88, 12.7], [35.75, 13.0], [35.85, 13.25], [35.75, 13.5], [35.85, 13.75], [35.82, 13.82], [35.47, 13.97], [35.25, 14.5], [35.47, 15.03], [35.82, 15.18], [35.97, 15.53], [36.5, 15.75], [37.03, 15.53], [37.18, 15.18], [37.5, 15.04], [38.0, 15.25], [38.53, 15.03], [38.75, 14.5], [38.53, 13.97], [38.18, 13.82], [38.04, 13.5], [38.25, 13.0], [38.13, 12.7], [38.25, 12.65], [38.5, 12.75], [39.03, 12.53], [39.25, 12.0], [39.03, 11.47], [38.5, 11.25], [38.25, 11.35], [38.18, 11.32], [38.03, 10.97], [37.68, 10.82], [37.65, 10.75], [37.75, 10.5], [37.65, 10.25], [37.75, 10.0], [37.53, 9.47], [37.0, 9.25], [36.75, 9.35], [36.68, 9.32], [36.65, 9.25], [36.75, 9.0], [36.53, 8.47], [36.13, 8.3], [36.25, 8.0], [36.03, 7.47], [35.5, 7.25], [34.97, 7.47], [34.75, 8.0], [34.97, 8.53], [35.38, 8.7], [35.32, 8.82], [35.25, 8.85], [35.0, 8.75], [34.7, 8.88], [34.53, 8.47], [34.0, 8.25], [33.75, 8.35], [33.5, 8.25], [33.0, 8.46], [32.5, 8.25], [32.25, 8.35], [32.0, 8.25], [31.47, 8.47], [31.25, 9.0], [31.35, 9.25], [31.32, 9.32], [31.25, 9.35], [31.0, 9.25], [30.47, 9.47], [30.25, 10.0], [30.35, 10.25], [30.25, 10.5], [30.47, 11.03]]]]}, "2010-04-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[34.97, 7.47], [34.75, 8.0], [34.97, 8.53], [35.5, 8.75], [36.03, 8.53], [36.25, 8.0], [36.03, 7.47], [35.5, 7.25], [34.97, 7.47]]], [[[35.25, 12.0], [35.47, 12.53], [36.0, 12.75], [36.25, 12.65], [36.38, 12.7], [36.25, 13.0], [36.47, 13.53], [37.0, 13.75], [37.25, 13.65], [37.5, 13.75], [38.03, 13.53], [38.25, 13.0], [38.03, 12.47], [37.5, 12.25], [37.25, 12.35], [37.13, 12.3], [37.25, 12.0], [37.03, 11.47], [36.5, 11.25], [37.03, 11.03], [37.25, 10.5], [37.03, 9.97], [36.63, 9.8], [36.75, 9.5], [36.53, 8.97], [36.0, 8.75], [35.47, 8.97], [35.32, 9.32], [34.97, 9.47], [34.75, 10.0], [34.96, 10.5], [34.75, 11.0], [34.97, 11.53], [35.38, 11.7], [35.25, 12.0]], [[36.25, 11.35], [36.13, 11.3], [36.2, 11.13], [36.5, 11.25], [36.25, 11.35]]], [[[37.25, 15.0], [37.03, 14.47], [36.68, 14.32], [36.53, 13.97], [36.0, 13.75], [35.47, 13.97], [35.25, 14.5], [35.47, 15.03], [35.82, 15.18], [35.97, 15.53], [36.5, 15.75], [37.03, 15.53], [37.25, 15.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 5.056835945124874}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.0752045696526693}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [33.64525831813211, 30.04156129299622, 29.98593452602904, 30.351307921028877, 30.781623815722526, 30.770505730765763]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [34.823229235500776, 35.46085360084845, 36.24338183236512, 36.89292367254484, 37.5875309307977, 36.628766134381806]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.8082004441885338, 3.2923182637255675, 2.9722644501429696, 3.1972390969959945, 3.0554465503979737, 2.3604058657057605]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.1904811636345585, 4.587742141945455, 4.405785501011053, 5.056835945124874, 3.9955307781744978, 2.77384863850466]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3017893524828783, 1.7883523992030208, 1.637593145562488, 1.731952689831098, 1.680553168751782, 1.3545354987617217]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.3761959272069697, 2.3282938398914785, 2.4617843968324706, 2.572530868580556, 2.2822388403907747, 1.3949272521829281]}}