{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:51:10.017736", "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": "2012-Aug-17_to_2012-Aug-23_39.0_40.5"}, "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": 2012080000854}, "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": "August 17 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 23 2012"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 7}, "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": 192945.94339124463}, "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": ["Georgia", "Russian Federation", "Turkiye"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Mediterranean", "W.C.Asia"]}, "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": ["Black 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": 40.5}, "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": 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": 34.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 43.75}, "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": 43.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-08-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[36.97, 39.97], [36.75, 40.5], [36.97, 41.03], [37.5, 41.25], [37.75, 41.15], [38.0, 41.25], [38.25, 41.15], [38.5, 41.25], [39.03, 41.03], [39.25, 40.5], [39.03, 39.97], [38.5, 39.75], [38.25, 39.85], [38.0, 39.75], [37.75, 39.85], [37.5, 39.75], [36.97, 39.97]]]]}, "2012-08-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[35.47, 41.53], [36.0, 41.75], [36.25, 41.65], [36.5, 41.75], [36.75, 41.65], [37.0, 41.75], [37.5, 41.54], [38.0, 41.75], [38.5, 41.54], [39.0, 41.75], [39.53, 41.53], [39.75, 41.0], [39.53, 40.47], [39.18, 40.32], [39.03, 39.97], [38.5, 39.75], [38.25, 39.85], [38.0, 39.75], [37.75, 39.85], [37.68, 39.82], [37.65, 39.75], [37.75, 39.5], [37.53, 38.97], [37.18, 38.82], [37.03, 38.47], [36.5, 38.25], [36.2, 38.38], [36.03, 37.97], [35.5, 37.75], [34.97, 37.97], [34.75, 38.5], [34.97, 39.03], [35.5, 39.25], [35.8, 39.13], [35.85, 39.25], [35.75, 39.5], [35.88, 39.8], [35.47, 39.97], [35.25, 40.5], [35.35, 40.75], [35.25, 41.0], [35.47, 41.53]]]]}, "2012-08-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[34.5, 40.25], [35.0, 40.04], [35.32, 40.18], [35.35, 40.25], [35.25, 40.5], [35.35, 40.75], [35.25, 41.0], [35.47, 41.53], [36.0, 41.75], [36.25, 41.65], [36.5, 41.75], [36.75, 41.65], [37.0, 41.75], [37.5, 41.54], [37.82, 41.68], [37.97, 42.03], [38.5, 42.25], [39.0, 42.04], [39.5, 42.25], [40.03, 42.03], [40.2, 41.63], [40.5, 41.75], [41.03, 41.53], [41.25, 41.0], [41.03, 40.47], [40.5, 40.25], [40.2, 40.38], [40.03, 39.97], [39.63, 39.8], [39.75, 39.5], [39.53, 38.97], [39.0, 38.75], [38.7, 38.88], [38.65, 38.75], [38.75, 38.5], [38.53, 37.97], [38.0, 37.75], [37.75, 37.85], [37.5, 37.75], [37.25, 37.85], [37.0, 37.75], [36.75, 37.85], [36.5, 37.75], [36.25, 37.85], [36.18, 37.82], [36.03, 37.47], [35.5, 37.25], [35.25, 37.35], [35.0, 37.25], [34.47, 37.47], [34.32, 37.82], [33.97, 37.97], [33.75, 38.5], [33.96, 39.0], [33.75, 39.5], [33.97, 40.03], [34.5, 40.25]]], [[[39.97, 44.03], [40.5, 44.25], [40.75, 44.15], [41.0, 44.25], [41.53, 44.03], [41.68, 43.68], [42.03, 43.53], [42.18, 43.18], [42.53, 43.03], [42.68, 42.68], [42.75, 42.65], [43.0, 42.75], [43.53, 42.53], [43.75, 42.0], [43.53, 41.47], [43.0, 41.25], [42.75, 41.35], [42.5, 41.25], [42.25, 41.35], [42.0, 41.25], [41.47, 41.47], [41.25, 42.0], [41.35, 42.25], [41.32, 42.32], [41.25, 42.35], [41.0, 42.25], [40.47, 42.47], [40.32, 42.82], [39.97, 42.97], [39.75, 43.5], [39.97, 44.03]]]]}, "2012-08-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[33.97, 40.03], [34.5, 40.25], [35.0, 40.04], [35.32, 40.18], [35.35, 40.25], [35.25, 40.5], [35.35, 40.75], [35.25, 41.0], [35.47, 41.53], [36.0, 41.75], [36.25, 41.65], [36.5, 41.75], [36.75, 41.65], [37.0, 41.75], [37.5, 41.54], [37.82, 41.68], [37.97, 42.03], [38.5, 42.25], [39.0, 42.04], [39.5, 42.25], [40.03, 42.03], [40.2, 41.63], [40.5, 41.75], [41.0, 41.54], [41.32, 41.68], [41.35, 41.75], [41.25, 42.0], [41.35, 42.25], [41.32, 42.32], [41.25, 42.35], [41.0, 42.25], [40.47, 42.47], [40.32, 42.82], [39.97, 42.97], [39.75, 43.5], [39.97, 44.03], [40.5, 44.25], [40.75, 44.15], [41.0, 44.25], [41.53, 44.03], [41.68, 43.68], [41.75, 43.65], [42.0, 43.75], [42.25, 43.65], [42.5, 43.75], [43.03, 43.53], [43.18, 43.18], [43.25, 43.15], [43.5, 43.25], [44.03, 43.03], [44.25, 42.5], [44.15, 42.25], [44.25, 42.0], [44.15, 41.75], [44.25, 41.5], [44.03, 40.97], [43.5, 40.75], [43.25, 40.85], [43.18, 40.82], [43.03, 40.47], [42.68, 40.32], [42.53, 39.97], [42.0, 39.75], [41.75, 39.85], [41.5, 39.75], [41.25, 39.85], [41.18, 39.82], [41.03, 39.47], [40.5, 39.25], [40.25, 39.35], [40.18, 39.32], [40.03, 38.97], [39.5, 38.75], [39.25, 38.85], [39.0, 38.75], [38.75, 38.85], [38.68, 38.82], [38.65, 38.75], [38.75, 38.5], [38.53, 37.97], [38.0, 37.75], [37.75, 37.85], [37.68, 37.82], [37.53, 37.47], [37.0, 37.25], [36.47, 37.47], [36.32, 37.82], [36.25, 37.85], [36.18, 37.82], [36.03, 37.47], [35.5, 37.25], [35.25, 37.35], [35.0, 37.25], [34.47, 37.47], [34.32, 37.82], [33.97, 37.97], [33.75, 38.5], [33.96, 39.0], [33.75, 39.5], [33.97, 40.03]]]]}, "2012-08-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[33.97, 40.03], [34.5, 40.25], [35.0, 40.04], [35.32, 40.18], [35.47, 40.53], [36.0, 40.75], [36.25, 40.65], [36.32, 40.68], [36.35, 40.75], [36.25, 41.0], [36.47, 41.53], [37.0, 41.75], [37.5, 41.54], [37.82, 41.68], [37.97, 42.03], [38.5, 42.25], [39.0, 42.04], [39.5, 42.25], [40.03, 42.03], [40.2, 41.63], [40.5, 41.75], [41.0, 41.54], [41.32, 41.68], [41.35, 41.75], [41.25, 42.0], [41.35, 42.25], [41.32, 42.32], [41.25, 42.35], [41.0, 42.25], [40.47, 42.47], [40.32, 42.82], [39.97, 42.97], [39.75, 43.5], [39.97, 44.03], [40.5, 44.25], [40.75, 44.15], [41.0, 44.25], [41.53, 44.03], [41.68, 43.68], [41.75, 43.65], [42.0, 43.75], [42.25, 43.65], [42.5, 43.75], [43.03, 43.53], [43.18, 43.18], [43.25, 43.15], [43.5, 43.25], [44.03, 43.03], [44.25, 42.5], [44.15, 42.25], [44.25, 42.0], [44.15, 41.75], [44.25, 41.5], [44.03, 40.97], [43.5, 40.75], [43.25, 40.85], [43.18, 40.82], [43.03, 40.47], [42.68, 40.32], [42.53, 39.97], [42.0, 39.75], [41.75, 39.85], [41.5, 39.75], [41.25, 39.85], [41.18, 39.82], [41.03, 39.47], [40.5, 39.25], [40.25, 39.35], [40.18, 39.32], [40.03, 38.97], [39.5, 38.75], [39.25, 38.85], [39.0, 38.75], [38.75, 38.85], [38.68, 38.82], [38.65, 38.75], [38.75, 38.5], [38.53, 37.97], [38.0, 37.75], [37.75, 37.85], [37.68, 37.82], [37.53, 37.47], [37.0, 37.25], [36.47, 37.47], [36.32, 37.82], [36.25, 37.85], [36.18, 37.82], [36.03, 37.47], [35.5, 37.25], [35.25, 37.35], [35.0, 37.25], [34.47, 37.47], [34.32, 37.82], [33.97, 37.97], [33.75, 38.5], [33.96, 39.0], [33.75, 39.5], [33.97, 40.03]]]]}, "2012-08-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[36.47, 37.47], [36.25, 38.0], [36.47, 38.53], [37.0, 38.75], [37.53, 38.53], [37.75, 38.0], [37.53, 37.47], [37.0, 37.25], [36.47, 37.47]]], [[[38.32, 40.68], [38.47, 41.03], [39.0, 41.25], [39.25, 41.15], [39.5, 41.25], [39.75, 41.15], [40.0, 41.25], [40.25, 41.15], [40.5, 41.25], [40.75, 41.15], [40.82, 41.18], [40.97, 41.53], [41.32, 41.68], [41.47, 42.03], [41.82, 42.18], [41.85, 42.25], [41.82, 42.32], [41.75, 42.35], [41.5, 42.25], [41.25, 42.35], [41.0, 42.25], [40.47, 42.47], [40.25, 43.0], [40.47, 43.53], [41.0, 43.75], [41.25, 43.65], [41.5, 43.75], [41.75, 43.65], [42.0, 43.75], [42.25, 43.65], [42.5, 43.75], [43.03, 43.53], [43.18, 43.18], [43.25, 43.15], [43.5, 43.25], [44.03, 43.03], [44.25, 42.5], [44.15, 42.25], [44.25, 42.0], [44.15, 41.75], [44.25, 41.5], [44.03, 40.97], [43.5, 40.75], [43.25, 40.85], [43.18, 40.82], [43.03, 40.47], [42.68, 40.32], [42.53, 39.97], [42.0, 39.75], [41.75, 39.85], [41.5, 39.75], [41.25, 39.85], [41.18, 39.82], [41.03, 39.47], [40.5, 39.25], [40.25, 39.35], [40.18, 39.32], [40.03, 38.97], [39.5, 38.75], [39.25, 38.85], [39.0, 38.75], [38.75, 38.85], [38.5, 38.75], [37.97, 38.97], [37.75, 39.5], [37.85, 39.75], [37.75, 40.0], [37.97, 40.53], [38.32, 40.68]]]]}, "2012-08-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[39.0, 41.25], [39.53, 41.03], [39.75, 40.5], [39.53, 39.97], [39.0, 39.75], [38.47, 39.97], [38.25, 40.5], [38.47, 41.03], [39.0, 41.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -5.286621238520013}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -3.5279883876338296}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [14.67519758204628, 17.295753705427728, 17.344755217585373, 15.494860401679375, 15.709240599229588, 14.188155863510474, 12.48289051786361]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [14.09806977903628, 13.815108925100787, 10.289777059737844, 8.521772243019825, 8.882897696052453, 8.373868471195635, 12.48289051786361]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.673960240670491, -2.610792289270549, -3.11489711840647, -3.976764878743297, -3.613192049561591, -3.46315928017063, -3.0052153932388137]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.7047036123280463, -3.012957616827748, -4.029247903894486, -5.286621238520013, -4.705332216123907, -4.359058673411937, -3.0052153932388137]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.3109668091613802, -1.3362335254067967, -1.492224276631363, -1.8421521151317097, -1.6206170596364216, -1.4808709253431906, -1.3636384415059684]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.334245919399071, -1.67143373560154, -1.8664245245973692, -2.88058422192833, -1.995930705337932, -1.6834785828672867, -1.3636384415059684]}}