{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:56:36.928686", "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": "2014-Jun-12_to_2014-Jun-15_39.5_25.0"}, "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": 2014060000498}, "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": "June 12 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 15 2014"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "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": "Cold spell"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 64715.36195433242}, "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": ["Saudi Arabia"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Arabian-Peninsula"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Asia"]}, "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": 25.0}, "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": 39.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "39.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 38.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 41.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 21.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 26.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-06-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[37.97, 24.47], [37.75, 25.0], [37.97, 25.53], [38.5, 25.75], [38.75, 25.65], [38.88, 25.7], [38.75, 26.0], [38.97, 26.53], [39.5, 26.75], [39.75, 26.65], [40.0, 26.75], [40.53, 26.53], [40.68, 26.18], [41.03, 26.03], [41.18, 25.68], [41.53, 25.53], [41.75, 25.0], [41.53, 24.47], [41.0, 24.25], [40.75, 24.35], [40.5, 24.25], [40.25, 24.35], [40.0, 24.25], [39.75, 24.35], [39.5, 24.25], [39.25, 24.35], [39.0, 24.25], [38.75, 24.35], [38.5, 24.25], [37.97, 24.47]]]]}, "2014-06-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[37.75, 25.0], [37.97, 25.53], [38.5, 25.75], [38.75, 25.65], [38.82, 25.68], [38.85, 25.75], [38.75, 26.0], [38.97, 26.53], [39.5, 26.75], [39.75, 26.65], [40.0, 26.75], [40.53, 26.53], [40.68, 26.18], [41.03, 26.03], [41.18, 25.68], [41.53, 25.53], [41.75, 25.0], [41.53, 24.47], [41.18, 24.32], [41.15, 24.25], [41.18, 24.18], [41.53, 24.03], [41.75, 23.5], [41.53, 22.97], [41.18, 22.82], [41.15, 22.75], [41.25, 22.5], [41.15, 22.25], [41.25, 22.0], [41.03, 21.47], [40.5, 21.25], [39.97, 21.47], [39.82, 21.82], [39.47, 21.97], [39.25, 22.5], [39.47, 23.03], [39.82, 23.18], [39.88, 23.3], [39.75, 23.35], [39.5, 23.25], [38.97, 23.47], [38.82, 23.82], [38.47, 23.97], [38.32, 24.32], [37.97, 24.47], [37.75, 25.0]]]]}, "2014-06-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[37.75, 25.0], [37.97, 25.53], [38.5, 25.75], [38.75, 25.65], [38.82, 25.68], [38.85, 25.75], [38.75, 26.0], [38.97, 26.53], [39.5, 26.75], [39.75, 26.65], [40.0, 26.75], [40.53, 26.53], [40.68, 26.18], [41.03, 26.03], [41.18, 25.68], [41.53, 25.53], [41.75, 25.0], [41.53, 24.47], [41.18, 24.32], [41.15, 24.25], [41.18, 24.18], [41.53, 24.03], [41.75, 23.5], [41.53, 22.97], [41.18, 22.82], [41.15, 22.75], [41.25, 22.5], [41.15, 22.25], [41.25, 22.0], [41.03, 21.47], [40.5, 21.25], [39.97, 21.47], [39.82, 21.82], [39.47, 21.97], [39.25, 22.5], [39.47, 23.03], [39.82, 23.18], [39.88, 23.3], [39.75, 23.35], [39.5, 23.25], [38.97, 23.47], [38.82, 23.82], [38.47, 23.97], [38.32, 24.32], [37.97, 24.47], [37.75, 25.0]]]]}, "2014-06-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[37.75, 25.0], [37.97, 25.53], [38.5, 25.75], [38.8, 25.63], [38.97, 26.03], [39.5, 26.25], [40.03, 26.03], [40.25, 25.5], [40.15, 25.25], [40.18, 25.18], [40.25, 25.15], [40.5, 25.25], [41.03, 25.03], [41.25, 24.5], [41.15, 24.25], [41.18, 24.18], [41.53, 24.03], [41.75, 23.5], [41.53, 22.97], [41.18, 22.82], [41.15, 22.75], [41.25, 22.5], [41.15, 22.25], [41.25, 22.0], [41.03, 21.47], [40.5, 21.25], [39.97, 21.47], [39.82, 21.82], [39.47, 21.97], [39.25, 22.5], [39.47, 23.03], [39.82, 23.18], [39.88, 23.3], [39.75, 23.35], [39.5, 23.25], [38.97, 23.47], [38.82, 23.82], [38.47, 23.97], [38.32, 24.32], [37.97, 24.47], [37.75, 25.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -3.9334376354743767}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.8249480549533876}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [30.27703534604973, 30.499386234519875, 30.345592709408095, 30.41999328554141]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [27.622884324763334, 28.14762963236427, 27.91551555321172, 27.78397370781039]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.6721546125076485, -2.705523630498498, -2.88395915418048, -3.0194441152665035]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-3.1754637131232926, -3.2931053655838127, -3.8370439802383203, -3.9334376354743767]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.6352211661623737, -1.6527887921953488, -1.7481501155790773, -1.749480826726285]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.9841659973257055, -2.1335470633887166, -2.267941586153234, -2.2586144133384187]}}