{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:47:17.448087", "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": "2011-Apr-12_to_2011-Apr-21_39.0_15.0"}, "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": 2011040002091}, "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 12 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 21 2011"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 10}, "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": 53588.48674031695}, "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"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Arabian-Peninsula", "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": ["Red Sea"]}, "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": 15.0}, "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": 39.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "39.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 38.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 41.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 13.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 18.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-04-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[39.0, 15.75], [39.53, 15.53], [39.75, 15.0], [39.53, 14.47], [39.0, 14.25], [38.47, 14.47], [38.25, 15.0], [38.47, 15.53], [39.0, 15.75]]]]}, "2011-04-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[39.0, 15.75], [39.53, 15.53], [39.75, 15.0], [39.53, 14.47], [39.0, 14.25], [38.47, 14.47], [38.25, 15.0], [38.47, 15.53], [39.0, 15.75]]]]}, "2011-04-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[39.0, 15.75], [39.53, 15.53], [39.75, 15.0], [39.53, 14.47], [39.0, 14.25], [38.47, 14.47], [38.25, 15.0], [38.47, 15.53], [39.0, 15.75]]]]}, "2011-04-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[39.0, 15.75], [39.53, 15.53], [39.75, 15.0], [39.53, 14.47], [39.0, 14.25], [38.47, 14.47], [38.25, 15.0], [38.47, 15.53], [39.0, 15.75]]]]}, "2011-04-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[39.0, 15.75], [39.53, 15.53], [39.75, 15.0], [39.53, 14.47], [39.0, 14.25], [38.47, 14.47], [38.25, 15.0], [38.47, 15.53], [39.0, 15.75]]]]}, "2011-04-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[39.0, 15.75], [39.53, 15.53], [39.75, 15.0], [39.53, 14.47], [39.0, 14.25], [38.47, 14.47], [38.25, 15.0], [38.47, 15.53], [39.0, 15.75]]]]}, "2011-04-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[38.47, 14.47], [38.25, 15.0], [38.47, 15.53], [39.0, 15.75], [39.25, 15.65], [39.5, 15.75], [39.8, 15.63], [39.85, 15.75], [39.82, 15.82], [39.47, 15.97], [39.25, 16.5], [39.35, 16.75], [39.25, 17.0], [39.46, 17.5], [39.25, 18.0], [39.47, 18.53], [40.0, 18.75], [40.53, 18.53], [40.68, 18.18], [41.03, 18.03], [41.25, 17.5], [41.15, 17.25], [41.25, 17.0], [41.15, 16.75], [41.25, 16.5], [41.15, 16.25], [41.18, 16.18], [41.53, 16.03], [41.75, 15.5], [41.65, 15.25], [41.75, 15.0], [41.65, 14.75], [41.75, 14.5], [41.53, 13.97], [41.13, 13.8], [41.25, 13.5], [41.03, 12.97], [40.5, 12.75], [39.97, 12.97], [39.82, 13.32], [39.47, 13.47], [39.25, 14.0], [39.35, 14.25], [39.32, 14.32], [39.25, 14.35], [39.0, 14.25], [38.47, 14.47]]]]}, "2011-04-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[38.47, 14.47], [38.25, 15.0], [38.47, 15.53], [39.0, 15.75], [39.25, 15.65], [39.5, 15.75], [39.8, 15.63], [39.85, 15.75], [39.82, 15.82], [39.47, 15.97], [39.25, 16.5], [39.35, 16.75], [39.25, 17.0], [39.46, 17.5], [39.25, 18.0], [39.47, 18.53], [40.0, 18.75], [40.53, 18.53], [40.68, 18.18], [41.03, 18.03], [41.25, 17.5], [41.15, 17.25], [41.25, 17.0], [41.15, 16.75], [41.25, 16.5], [41.15, 16.25], [41.18, 16.18], [41.53, 16.03], [41.75, 15.5], [41.65, 15.25], [41.75, 15.0], [41.65, 14.75], [41.68, 14.68], [42.03, 14.53], [42.25, 14.0], [42.03, 13.47], [41.5, 13.25], [41.2, 13.38], [41.03, 12.97], [40.5, 12.75], [39.97, 12.97], [39.82, 13.32], [39.47, 13.47], [39.25, 14.0], [39.35, 14.25], [39.32, 14.32], [39.25, 14.35], [39.0, 14.25], [38.47, 14.47]]]]}, "2011-04-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[38.47, 14.47], [38.25, 15.0], [38.47, 15.53], [39.0, 15.75], [39.25, 15.65], [39.5, 15.75], [39.8, 15.63], [39.85, 15.75], [39.82, 15.82], [39.47, 15.97], [39.25, 16.5], [39.35, 16.75], [39.25, 17.0], [39.46, 17.5], [39.25, 18.0], [39.47, 18.53], [40.0, 18.75], [40.53, 18.53], [40.68, 18.18], [41.03, 18.03], [41.25, 17.5], [41.15, 17.25], [41.25, 17.0], [41.15, 16.75], [41.25, 16.5], [41.15, 16.25], [41.18, 16.18], [41.53, 16.03], [41.75, 15.5], [41.65, 15.25], [41.75, 15.0], [41.65, 14.75], [41.68, 14.68], [42.03, 14.53], [42.25, 14.0], [42.03, 13.47], [41.5, 13.25], [41.2, 13.38], [41.03, 12.97], [40.5, 12.75], [39.97, 12.97], [39.82, 13.32], [39.47, 13.47], [39.25, 14.0], [39.35, 14.25], [39.32, 14.32], [39.25, 14.35], [39.0, 14.25], [38.47, 14.47]]]]}, "2011-04-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[39.47, 15.03], [40.0, 15.25], [40.3, 15.13], [40.35, 15.25], [40.25, 15.5], [40.47, 16.03], [41.0, 16.25], [41.53, 16.03], [41.75, 15.5], [41.65, 15.25], [41.75, 15.0], [41.65, 14.75], [41.68, 14.68], [42.03, 14.53], [42.25, 14.0], [42.03, 13.47], [41.5, 13.25], [41.2, 13.38], [41.03, 12.97], [40.5, 12.75], [39.97, 12.97], [39.82, 13.32], [39.47, 13.47], [39.25, 14.0], [39.35, 14.25], [39.25, 14.5], [39.47, 15.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 4.1591534514731165}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.2771617362965553}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [22.750534144236155, 22.70342533668122, 22.298745483395294, 22.206959290610882, 22.012065594839555, 22.05529932306331, 29.807067014797838, 30.663074671098343, 30.91892277377758, 32.51168530632242]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [22.750534144236155, 22.70342533668122, 22.298745483395294, 22.206959290610882, 22.012065594839555, 22.05529932306331, 37.35494832377816, 37.23550470204219, 37.700210293986686, 37.38868430854319]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.481773706439128, 2.4256150796883844, 2.014978755747734, 1.8901532096967912, 1.6463376043344056, 1.6573348933965804, 1.806167480945399, 2.44224361210814, 2.6199707006449335, 2.3359680772346434]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.481773706439128, 2.4256150796883844, 2.014978755747734, 1.8901532096967912, 1.6463376043344056, 1.6573348933965804, 3.8401459556687314, 4.094164868664507, 4.1591534514731165, 3.0902372555717648]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.767807125000877, 1.7109359767339383, 1.4568400675390207, 1.3897178699373212, 1.2585205513138693, 1.3235979059357093, 1.4186671335443253, 2.074501198335478, 2.203696322327433, 1.436331811956515]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.767807125000877, 1.7109359767339383, 1.4568400675390207, 1.3897178699373212, 1.2585205513138693, 1.3235979059357093, 1.7470856947835698, 2.9464942806709646, 2.9267773516847013, 1.6332915315466987]}}