{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:09:06.517470", "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-Oct-02_to_2017-Oct-06_35.0_39.5"}, "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": 2017100000120}, "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": "October 02 2017"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 06 2017"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 126255.68114903533}, "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": ["Turkiye"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Mediterranean"]}, "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": 39.5}, "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": 35.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "35.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 32.75}, "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": 37.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 42.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2017-10-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[37.53, 41.03], [37.75, 40.5], [37.53, 39.97], [37.0, 39.75], [36.47, 39.97], [36.25, 40.5], [36.47, 41.03], [37.0, 41.25], [37.53, 41.03]]], [[[33.25, 41.5], [33.47, 42.03], [34.0, 42.25], [34.25, 42.15], [34.32, 42.18], [34.47, 42.53], [35.0, 42.75], [35.53, 42.53], [35.68, 42.18], [36.03, 42.03], [36.25, 41.5], [36.04, 41.0], [36.25, 40.5], [36.03, 39.97], [35.5, 39.75], [34.97, 39.97], [34.75, 40.5], [34.88, 40.8], [34.75, 40.85], [34.5, 40.75], [34.25, 40.85], [34.0, 40.75], [33.47, 40.97], [33.25, 41.5]]]]}, "2017-10-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[32.25, 39.5], [32.47, 40.03], [32.88, 40.2], [32.75, 40.5], [32.97, 41.03], [33.38, 41.2], [33.25, 41.5], [33.47, 42.03], [34.0, 42.25], [34.25, 42.15], [34.32, 42.18], [34.47, 42.53], [35.0, 42.75], [35.53, 42.53], [35.68, 42.18], [36.03, 42.03], [36.18, 41.68], [36.25, 41.65], [36.5, 41.75], [37.03, 41.53], [37.18, 41.18], [37.53, 41.03], [37.68, 40.68], [38.03, 40.53], [38.18, 40.18], [38.25, 40.15], [38.5, 40.25], [39.03, 40.03], [39.25, 39.5], [39.04, 39.0], [39.25, 38.5], [39.03, 37.97], [38.5, 37.75], [38.25, 37.85], [38.18, 37.82], [38.03, 37.47], [37.5, 37.25], [36.97, 37.47], [36.82, 37.82], [36.75, 37.85], [36.5, 37.75], [36.25, 37.85], [36.0, 37.75], [35.75, 37.85], [35.68, 37.82], [35.53, 37.47], [35.0, 37.25], [34.47, 37.47], [34.32, 37.82], [33.97, 37.97], [33.82, 38.32], [33.75, 38.35], [33.5, 38.25], [32.97, 38.47], [32.82, 38.82], [32.47, 38.97], [32.25, 39.5]], [[34.82, 40.82], [34.75, 40.85], [34.63, 40.8], [34.68, 40.68], [34.8, 40.63], [34.85, 40.75], [34.82, 40.82]]]]}, "2017-10-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[32.25, 39.5], [32.47, 40.03], [32.88, 40.2], [32.75, 40.5], [32.97, 41.03], [33.38, 41.2], [33.25, 41.5], [33.47, 42.03], [34.0, 42.25], [34.25, 42.15], [34.32, 42.18], [34.47, 42.53], [35.0, 42.75], [35.53, 42.53], [35.68, 42.18], [36.03, 42.03], [36.18, 41.68], [36.25, 41.65], [36.5, 41.75], [37.03, 41.53], [37.18, 41.18], [37.53, 41.03], [37.68, 40.68], [38.03, 40.53], [38.18, 40.18], [38.25, 40.15], [38.5, 40.25], [39.03, 40.03], [39.25, 39.5], [39.04, 39.0], [39.25, 38.5], [39.03, 37.97], [38.63, 37.8], [38.75, 37.5], [38.53, 36.97], [38.0, 36.75], [37.47, 36.97], [37.32, 37.32], [36.97, 37.47], [36.82, 37.82], [36.75, 37.85], [36.5, 37.75], [36.25, 37.85], [36.0, 37.75], [35.75, 37.85], [35.68, 37.82], [35.53, 37.47], [35.0, 37.25], [34.47, 37.47], [34.32, 37.82], [33.97, 37.97], [33.82, 38.32], [33.75, 38.35], [33.5, 38.25], [32.97, 38.47], [32.82, 38.82], [32.47, 38.97], [32.25, 39.5]], [[34.82, 40.82], [34.75, 40.85], [34.63, 40.8], [34.68, 40.68], [34.8, 40.63], [34.85, 40.75], [34.82, 40.82]]]]}, "2017-10-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[32.25, 39.5], [32.47, 40.03], [32.88, 40.2], [32.75, 40.5], [32.97, 41.03], [33.5, 41.25], [33.75, 41.15], [34.0, 41.25], [34.53, 41.03], [34.68, 40.68], [34.93, 40.57], [34.75, 41.0], [34.97, 41.53], [35.5, 41.75], [35.75, 41.65], [36.0, 41.75], [36.25, 41.65], [36.5, 41.75], [37.03, 41.53], [37.25, 41.0], [37.13, 40.7], [37.25, 40.65], [37.5, 40.75], [38.03, 40.53], [38.18, 40.18], [38.25, 40.15], [38.5, 40.25], [39.03, 40.03], [39.25, 39.5], [39.04, 39.0], [39.25, 38.5], [39.03, 37.97], [38.63, 37.8], [38.75, 37.5], [38.53, 36.97], [38.0, 36.75], [37.47, 36.97], [37.32, 37.32], [36.97, 37.47], [36.82, 37.82], [36.75, 37.85], [36.5, 37.75], [36.25, 37.85], [36.0, 37.75], [35.75, 37.85], [35.68, 37.82], [35.53, 37.47], [35.0, 37.25], [34.47, 37.47], [34.32, 37.82], [33.97, 37.97], [33.82, 38.32], [33.75, 38.35], [33.5, 38.25], [32.97, 38.47], [32.82, 38.82], [32.47, 38.97], [32.25, 39.5]], [[35.25, 40.15], [35.32, 40.18], [35.35, 40.25], [35.32, 40.32], [35.07, 40.43], [35.18, 40.18], [35.25, 40.15]]]]}, "2017-10-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[38.0, 38.25], [38.53, 38.03], [38.75, 37.5], [38.53, 36.97], [38.0, 36.75], [37.47, 36.97], [37.25, 37.5], [37.47, 38.03], [38.0, 38.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -6.679977276540171}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -5.146041080694479}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [11.159739082832061, 9.477705373253457, 9.087053933120046, 9.671037488693855, 17.331599227401625]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [9.181499059391683, 5.804231524017723, 5.329739390948589, 6.72155942744331, 17.331599227401625]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-4.310854239426492, -5.2055213744721165, -5.544770534601381, -4.778839925102233, -3.6579657933101544]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-4.553811322566673, -6.295603585259357, -6.679977276540171, -5.696695935748664, -3.6579657933101544]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.4123246806667507, -1.6226487346212228, -1.7431141694602845, -1.4969868813768106, -1.6132125150662602]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.5345922550831523, -1.8493507836097043, -2.053575227009728, -1.834914332725152, -1.6132125150662602]}}