{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:08:45.215470", "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-Aug-13_to_2017-Aug-21_28.5_9.5"}, "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": 2017080001980}, "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": "August 13 2017"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 21 2017"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 9}, "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": 183003.1008446096}, "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": ["South Sudan", "Sudan"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Central-Africa", "N.Eastern-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": 9.5}, "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": 28.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "28.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 25.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 31.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 5.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 11.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2017-08-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[25.25, 10.0], [25.47, 10.53], [25.82, 10.68], [25.97, 11.03], [26.5, 11.25], [26.75, 11.15], [27.0, 11.25], [27.25, 11.15], [27.5, 11.25], [27.75, 11.15], [28.0, 11.25], [28.25, 11.15], [28.5, 11.25], [28.75, 11.15], [29.0, 11.25], [29.25, 11.15], [29.5, 11.25], [30.03, 11.03], [30.25, 10.5], [30.03, 9.97], [29.68, 9.82], [29.53, 9.47], [29.18, 9.32], [29.15, 9.25], [29.25, 9.0], [29.15, 8.75], [29.25, 8.5], [29.03, 7.97], [28.5, 7.75], [28.25, 7.85], [28.0, 7.75], [27.75, 7.85], [27.5, 7.75], [26.97, 7.97], [26.82, 8.32], [26.47, 8.47], [26.32, 8.82], [25.97, 8.97], [25.82, 9.32], [25.47, 9.47], [25.25, 10.0]]]]}, "2017-08-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[25.25, 10.0], [25.47, 10.53], [25.82, 10.68], [25.97, 11.03], [26.5, 11.25], [26.75, 11.15], [27.0, 11.25], [27.25, 11.15], [27.5, 11.25], [27.75, 11.15], [28.0, 11.25], [28.25, 11.15], [28.5, 11.25], [28.75, 11.15], [29.0, 11.25], [29.25, 11.15], [29.5, 11.25], [30.03, 11.03], [30.25, 10.5], [30.03, 9.97], [29.68, 9.82], [29.53, 9.47], [29.18, 9.32], [29.15, 9.25], [29.25, 9.0], [29.15, 8.75], [29.25, 8.5], [29.03, 7.97], [28.5, 7.75], [28.25, 7.85], [28.0, 7.75], [27.75, 7.85], [27.5, 7.75], [26.97, 7.97], [26.82, 8.32], [26.47, 8.47], [26.32, 8.82], [25.97, 8.97], [25.82, 9.32], [25.47, 9.47], [25.25, 10.0]]]]}, "2017-08-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[25.25, 10.0], [25.47, 10.53], [25.82, 10.68], [25.97, 11.03], [26.5, 11.25], [26.75, 11.15], [27.0, 11.25], [27.25, 11.15], [27.5, 11.25], [27.75, 11.15], [28.0, 11.25], [28.25, 11.15], [28.5, 11.25], [28.75, 11.15], [29.0, 11.25], [29.25, 11.15], [29.5, 11.25], [30.03, 11.03], [30.25, 10.5], [30.03, 9.97], [29.68, 9.82], [29.53, 9.47], [29.18, 9.32], [29.15, 9.25], [29.25, 9.0], [29.15, 8.75], [29.25, 8.5], [29.03, 7.97], [28.5, 7.75], [28.25, 7.85], [28.0, 7.75], [27.75, 7.85], [27.5, 7.75], [26.97, 7.97], [26.82, 8.32], [26.47, 8.47], [26.32, 8.82], [25.97, 8.97], [25.82, 9.32], [25.47, 9.47], [25.25, 10.0]]]]}, "2017-08-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[28.0, 9.25], [28.53, 9.03], [28.75, 8.5], [28.53, 7.97], [28.0, 7.75], [27.47, 7.97], [27.25, 8.5], [27.47, 9.03], [28.0, 9.25]]]]}, "2017-08-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[27.25, 9.5], [27.35, 9.75], [27.25, 10.0], [27.47, 10.53], [27.82, 10.68], [27.97, 11.03], [28.5, 11.25], [28.75, 11.15], [29.0, 11.25], [29.53, 11.03], [29.68, 10.68], [30.03, 10.53], [30.25, 10.0], [30.15, 9.75], [30.25, 9.5], [30.15, 9.25], [30.25, 9.0], [30.03, 8.47], [29.5, 8.25], [29.25, 8.35], [29.18, 8.32], [29.15, 8.25], [29.25, 8.0], [29.15, 7.75], [29.25, 7.5], [29.03, 6.97], [28.5, 6.75], [27.97, 6.97], [27.75, 7.5], [27.85, 7.75], [27.82, 7.82], [27.75, 7.85], [27.5, 7.75], [26.97, 7.97], [26.75, 8.5], [26.97, 9.03], [27.32, 9.18], [27.35, 9.25], [27.25, 9.5]]]]}, "2017-08-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[27.25, 9.5], [27.35, 9.75], [27.25, 10.0], [27.35, 10.25], [27.25, 10.5], [27.35, 10.75], [27.25, 11.0], [27.47, 11.53], [28.0, 11.75], [28.25, 11.65], [28.5, 11.75], [28.75, 11.65], [28.82, 11.68], [28.97, 12.03], [29.5, 12.25], [29.75, 12.15], [30.0, 12.25], [30.53, 12.03], [30.68, 11.68], [31.03, 11.53], [31.25, 11.0], [31.15, 10.75], [31.25, 10.5], [31.03, 9.97], [30.5, 9.75], [31.03, 9.53], [31.18, 9.18], [31.53, 9.03], [31.68, 8.68], [32.03, 8.53], [32.25, 8.0], [32.03, 7.47], [31.68, 7.32], [31.53, 6.97], [31.0, 6.75], [30.75, 6.85], [30.68, 6.82], [30.65, 6.75], [30.68, 6.68], [31.03, 6.53], [31.25, 6.0], [31.03, 5.47], [30.5, 5.25], [29.97, 5.47], [29.82, 5.82], [29.75, 5.85], [29.5, 5.75], [29.25, 5.85], [29.0, 5.75], [28.47, 5.97], [28.25, 6.5], [28.38, 6.8], [27.97, 6.97], [27.75, 7.5], [27.85, 7.75], [27.82, 7.82], [27.75, 7.85], [27.5, 7.75], [26.97, 7.97], [26.75, 8.5], [26.97, 9.03], [27.32, 9.18], [27.35, 9.25], [27.25, 9.5]], [[30.25, 9.85], [30.18, 9.82], [30.15, 9.75], [30.18, 9.68], [30.25, 9.65], [30.5, 9.75], [30.25, 9.85]], [[29.13, 7.2], [29.25, 7.15], [29.32, 7.18], [29.46, 7.5], [29.32, 7.82], [29.25, 7.85], [29.18, 7.82], [29.15, 7.75], [29.25, 7.5], [29.13, 7.2]]]]}, "2017-08-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[27.25, 9.5], [27.35, 9.75], [27.25, 10.0], [27.35, 10.25], [27.25, 10.5], [27.35, 10.75], [27.25, 11.0], [27.47, 11.53], [28.0, 11.75], [28.25, 11.65], [28.5, 11.75], [28.75, 11.65], [28.82, 11.68], [28.97, 12.03], [29.5, 12.25], [29.75, 12.15], [30.0, 12.25], [30.53, 12.03], [30.68, 11.68], [31.03, 11.53], [31.25, 11.0], [31.15, 10.75], [31.25, 10.5], [31.03, 9.97], [30.5, 9.75], [31.03, 9.53], [31.18, 9.18], [31.53, 9.03], [31.68, 8.68], [32.03, 8.53], [32.25, 8.0], [32.03, 7.47], [31.68, 7.32], [31.53, 6.97], [31.0, 6.75], [30.75, 6.85], [30.68, 6.82], [30.65, 6.75], [30.68, 6.68], [31.03, 6.53], [31.25, 6.0], [31.03, 5.47], [30.5, 5.25], [29.97, 5.47], [29.82, 5.82], [29.75, 5.85], [29.5, 5.75], [29.25, 5.85], [29.0, 5.75], [28.47, 5.97], [28.25, 6.5], [28.38, 6.8], [27.97, 6.97], [27.75, 7.5], [27.85, 7.75], [27.82, 7.82], [27.75, 7.85], [27.5, 7.75], [26.97, 7.97], [26.75, 8.5], [26.97, 9.03], [27.32, 9.18], [27.35, 9.25], [27.25, 9.5]], [[30.25, 9.85], [30.18, 9.82], [30.15, 9.75], [30.18, 9.68], [30.25, 9.65], [30.5, 9.75], [30.25, 9.85]], [[29.13, 7.2], [29.25, 7.15], [29.32, 7.18], [29.46, 7.5], [29.32, 7.82], [29.25, 7.85], [29.18, 7.82], [29.15, 7.75], [29.25, 7.5], [29.13, 7.2]]]]}, "2017-08-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[27.35, 10.25], [27.25, 10.5], [27.35, 10.75], [27.25, 11.0], [27.47, 11.53], [28.0, 11.75], [28.25, 11.65], [28.5, 11.75], [28.75, 11.65], [28.82, 11.68], [28.97, 12.03], [29.5, 12.25], [29.75, 12.15], [30.0, 12.25], [30.53, 12.03], [30.68, 11.68], [31.03, 11.53], [31.25, 11.0], [31.15, 10.75], [31.25, 10.5], [31.03, 9.97], [30.5, 9.75], [31.03, 9.53], [31.18, 9.18], [31.53, 9.03], [31.68, 8.68], [32.03, 8.53], [32.25, 8.0], [32.03, 7.47], [31.68, 7.32], [31.53, 6.97], [31.0, 6.75], [30.75, 6.85], [30.68, 6.82], [30.65, 6.75], [30.68, 6.68], [31.03, 6.53], [31.25, 6.0], [31.03, 5.47], [30.5, 5.25], [29.97, 5.47], [29.82, 5.82], [29.75, 5.85], [29.5, 5.75], [29.25, 5.85], [29.0, 5.75], [28.47, 5.97], [28.25, 6.5], [28.47, 7.03], [29.0, 7.25], [29.25, 7.15], [29.32, 7.18], [29.46, 7.5], [29.32, 7.82], [29.25, 7.85], [29.0, 7.75], [28.75, 7.85], [28.5, 7.75], [27.97, 7.97], [27.75, 8.5], [27.85, 8.75], [27.82, 8.82], [27.47, 8.97], [27.25, 9.5], [27.35, 9.75], [27.25, 10.0], [27.35, 10.25]], [[30.25, 9.85], [30.18, 9.82], [30.15, 9.75], [30.18, 9.68], [30.25, 9.65], [30.5, 9.75], [30.25, 9.85]]]]}, "2017-08-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[31.03, 5.47], [30.5, 5.25], [29.97, 5.47], [29.75, 6.0], [29.97, 6.53], [30.5, 6.75], [31.03, 6.53], [31.25, 6.0], [31.03, 5.47]]], [[[29.47, 8.53], [30.0, 8.75], [30.5, 8.54], [31.0, 8.75], [31.25, 8.65], [31.5, 8.75], [32.03, 8.53], [32.25, 8.0], [32.03, 7.47], [31.68, 7.32], [31.53, 6.97], [31.0, 6.75], [30.75, 6.85], [30.5, 6.75], [29.97, 6.97], [29.82, 7.32], [29.47, 7.47], [29.25, 8.0], [29.47, 8.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.1159451158032425}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.8020662300057053}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.455170323100617, 27.88698547779603, 27.23578866190212, 26.64310119467325, 27.06456199271679, 27.42867351679837, 27.53220160631122, 27.25833642640481, 26.999853312979326]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [28.65412679974969, 28.777853513258435, 28.065836701617116, 26.64310119467325, 27.508214601980683, 28.402048833276524, 28.86409711749434, 28.331463757373, 27.425865346760077]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.7620825901315174, 2.1700478428266776, 1.5417606706668174, 1.0712295434373686, 1.3788377877446787, 1.876400489076674, 2.000158378444689, 1.7147950929255429, 1.3972166988173644]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.682723078523111, 3.1159451158032425, 2.298969166344989, 1.0712295434373686, 1.8024231074794557, 2.5717448446737308, 3.0003360589996646, 2.5686655759736823, 1.5985848906509545]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.99089793210967, 2.5308014648192034, 1.8265750776550544, 1.3426827119828755, 1.6179702078832987, 2.1709349286968354, 2.265364472897821, 1.9094905380819738, 1.5006684031753024]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.806957910719786, 3.4480608988347834, 2.639251517243809, 1.3426827119828755, 2.0240850199588323, 3.015570005019565, 3.5363427770936844, 2.757065150331678, 1.6442133942103032]}}