{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:54:21.597979", "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": "2013-Sep-04_to_2013-Sep-06_35.0_38.5"}, "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": 2013090000344}, "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": "September 04 2013"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 06 2013"}, "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": 107113.26202141124}, "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": 38.5}, "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": 30.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 36.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 37.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 41.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2013-09-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[30.47, 41.03], [31.0, 41.25], [31.25, 41.15], [31.5, 41.25], [31.8, 41.13], [31.97, 41.53], [32.32, 41.68], [32.47, 42.03], [33.0, 42.25], [33.25, 42.15], [33.5, 42.25], [33.75, 42.15], [34.0, 42.25], [34.53, 42.03], [34.75, 41.5], [34.54, 41.0], [34.68, 40.68], [35.03, 40.53], [35.18, 40.18], [35.25, 40.15], [35.5, 40.25], [36.03, 40.03], [36.18, 39.68], [36.53, 39.53], [36.75, 39.0], [36.53, 38.47], [36.18, 38.32], [36.03, 37.97], [35.5, 37.75], [35.25, 37.85], [35.0, 37.75], [34.75, 37.85], [34.68, 37.82], [34.53, 37.47], [34.0, 37.25], [33.47, 37.47], [33.25, 38.0], [33.35, 38.25], [33.32, 38.32], [33.25, 38.35], [33.18, 38.32], [33.03, 37.97], [32.5, 37.75], [32.25, 37.85], [32.0, 37.75], [31.47, 37.97], [31.32, 38.32], [30.97, 38.47], [30.82, 38.82], [30.47, 38.97], [30.25, 39.5], [30.46, 40.0], [30.25, 40.5], [30.47, 41.03]]]]}, "2013-09-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[30.47, 41.03], [31.0, 41.25], [31.25, 41.15], [31.5, 41.25], [31.8, 41.13], [31.97, 41.53], [32.32, 41.68], [32.47, 42.03], [33.0, 42.25], [33.25, 42.15], [33.5, 42.25], [33.75, 42.15], [34.0, 42.25], [34.53, 42.03], [34.75, 41.5], [34.54, 41.0], [34.68, 40.68], [35.03, 40.53], [35.18, 40.18], [35.25, 40.15], [35.5, 40.25], [36.03, 40.03], [36.18, 39.68], [36.53, 39.53], [36.75, 39.0], [36.53, 38.47], [36.18, 38.32], [36.03, 37.97], [35.5, 37.75], [35.25, 37.85], [35.0, 37.75], [34.75, 37.85], [34.68, 37.82], [34.53, 37.47], [34.0, 37.25], [33.47, 37.47], [33.25, 38.0], [33.35, 38.25], [33.32, 38.32], [33.25, 38.35], [33.18, 38.32], [33.03, 37.97], [32.5, 37.75], [32.25, 37.85], [32.0, 37.75], [31.47, 37.97], [31.32, 38.32], [30.97, 38.47], [30.82, 38.82], [30.47, 38.97], [30.25, 39.5], [30.46, 40.0], [30.25, 40.5], [30.47, 41.03]]]]}, "2013-09-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[30.47, 41.03], [31.0, 41.25], [31.25, 41.15], [31.5, 41.25], [31.8, 41.13], [31.97, 41.53], [32.32, 41.68], [32.47, 42.03], [33.0, 42.25], [33.25, 42.15], [33.5, 42.25], [33.75, 42.15], [34.0, 42.25], [34.53, 42.03], [34.75, 41.5], [34.54, 41.0], [34.68, 40.68], [35.03, 40.53], [35.18, 40.18], [35.25, 40.15], [35.5, 40.25], [36.03, 40.03], [36.18, 39.68], [36.53, 39.53], [36.75, 39.0], [36.53, 38.47], [36.18, 38.32], [36.03, 37.97], [35.5, 37.75], [35.25, 37.85], [35.0, 37.75], [34.75, 37.85], [34.68, 37.82], [34.53, 37.47], [34.0, 37.25], [33.47, 37.47], [33.25, 38.0], [33.35, 38.25], [33.32, 38.32], [33.25, 38.35], [33.18, 38.32], [33.03, 37.97], [32.5, 37.75], [32.25, 37.85], [32.0, 37.75], [31.47, 37.97], [31.32, 38.32], [30.97, 38.47], [30.82, 38.82], [30.47, 38.97], [30.25, 39.5], [30.46, 40.0], [30.25, 40.5], [30.47, 41.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -7.308505247810501}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -5.518857679081321}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [15.04957417061172, 14.127659318520216, 14.917064447842392]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [10.223227754467132, 10.553058855296683, 11.610499860912512]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-5.534809673300174, -6.070407101474946, -4.951356262468846]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-7.308505247810501, -7.116479235562451, -5.786297436269308]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.760773661905537, -1.9595957295993618, -1.628195266301713]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.1465894727927015, -2.4523048970601082, -1.958581395443866]}}