{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:46:19.201924", "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-Dec-11_to_2010-Dec-13_29.0_38.0"}, "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": 2010120000601}, "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": "December 11 2010"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 13 2010"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 3}, "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": 87049.63063571029}, "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": ["Aegean Sea", "Mediterranean Sea - Eastern Basin", "Sea of Marmara"]}, "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": 38.0}, "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": 29.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "29.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 26.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 29.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 35.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 40.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2010-12-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[26.35, 39.25], [26.25, 39.5], [26.35, 39.75], [26.25, 40.0], [26.47, 40.53], [26.82, 40.68], [26.97, 41.03], [27.5, 41.25], [27.75, 41.15], [28.0, 41.25], [28.25, 41.15], [28.5, 41.25], [28.75, 41.15], [29.0, 41.25], [29.53, 41.03], [29.75, 40.5], [29.53, 39.97], [29.18, 39.82], [29.15, 39.75], [29.18, 39.68], [29.53, 39.53], [29.75, 39.0], [29.63, 38.7], [30.03, 38.53], [30.25, 38.0], [30.15, 37.75], [30.25, 37.5], [30.15, 37.25], [30.25, 37.0], [30.04, 36.5], [30.25, 36.0], [30.03, 35.47], [29.5, 35.25], [28.97, 35.47], [28.82, 35.82], [28.75, 35.85], [28.5, 35.75], [27.97, 35.97], [27.82, 36.32], [27.47, 36.47], [27.25, 37.0], [27.35, 37.25], [27.32, 37.32], [26.97, 37.47], [26.82, 37.82], [26.47, 37.97], [26.25, 38.5], [26.35, 38.75], [26.25, 39.0], [26.35, 39.25]]]]}, "2010-12-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[26.35, 39.25], [26.25, 39.5], [26.35, 39.75], [26.25, 40.0], [26.47, 40.53], [26.82, 40.68], [26.97, 41.03], [27.5, 41.25], [27.75, 41.15], [28.0, 41.25], [28.25, 41.15], [28.5, 41.25], [28.75, 41.15], [29.0, 41.25], [29.53, 41.03], [29.75, 40.5], [29.53, 39.97], [29.18, 39.82], [29.15, 39.75], [29.18, 39.68], [29.53, 39.53], [29.75, 39.0], [29.63, 38.7], [30.03, 38.53], [30.25, 38.0], [30.15, 37.75], [30.25, 37.5], [30.15, 37.25], [30.25, 37.0], [30.04, 36.5], [30.25, 36.0], [30.03, 35.47], [29.5, 35.25], [28.97, 35.47], [28.82, 35.82], [28.75, 35.85], [28.5, 35.75], [27.97, 35.97], [27.82, 36.32], [27.47, 36.47], [27.25, 37.0], [27.35, 37.25], [27.32, 37.32], [26.97, 37.47], [26.82, 37.82], [26.47, 37.97], [26.25, 38.5], [26.35, 38.75], [26.25, 39.0], [26.35, 39.25]]]]}, "2010-12-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[26.35, 39.25], [26.25, 39.5], [26.35, 39.75], [26.25, 40.0], [26.47, 40.53], [26.82, 40.68], [26.97, 41.03], [27.5, 41.25], [27.75, 41.15], [28.0, 41.25], [28.25, 41.15], [28.5, 41.25], [28.75, 41.15], [29.0, 41.25], [29.53, 41.03], [29.75, 40.5], [29.53, 39.97], [29.18, 39.82], [29.15, 39.75], [29.18, 39.68], [29.53, 39.53], [29.75, 39.0], [29.63, 38.7], [30.03, 38.53], [30.25, 38.0], [30.15, 37.75], [30.25, 37.5], [30.15, 37.25], [30.25, 37.0], [30.04, 36.5], [30.25, 36.0], [30.03, 35.47], [29.5, 35.25], [28.97, 35.47], [28.82, 35.82], [28.75, 35.85], [28.5, 35.75], [27.97, 35.97], [27.82, 36.32], [27.47, 36.47], [27.25, 37.0], [27.35, 37.25], [27.32, 37.32], [26.97, 37.47], [26.82, 37.82], [26.47, 37.97], [26.25, 38.5], [26.35, 38.75], [26.25, 39.0], [26.35, 39.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -9.32668745541963}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -5.824140754169706}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [2.2322374231671347, 0.6719352951287192, 1.5994400876021473]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-1.419892482033731, -4.403274284186807, -3.5784838373074876]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-5.189383973221565, -6.611194596623378, -5.671843692664173]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-6.579227007856844, -8.558802794840688, -9.32668745541963]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.7225944271215667, -2.201776750554947, -1.8306622487719855]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.3796211401300105, -3.0252471849033267, -3.1377243151522425]}}