{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:20:41.455170", "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": "2020-Jul-17_to_2020-Jul-19_18.0_44.5"}, "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": 2020070000634}, "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": "July 17 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 19 2020"}, "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": 72007.41263377818}, "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": ["Bosnia and Herzegovina", "Croatia", "Hungary", "Romania", "Serbia"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Mediterranean", "West&Central-Europe"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Europe"]}, "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": 44.5}, "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": 18.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "18.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 17.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 21.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 43.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 46.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2020-07-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[16.97, 45.03], [17.5, 45.25], [17.75, 45.15], [17.82, 45.18], [17.85, 45.25], [17.75, 45.5], [17.97, 46.03], [18.32, 46.18], [18.47, 46.53], [18.82, 46.68], [18.97, 47.03], [19.5, 47.25], [19.75, 47.15], [20.0, 47.25], [20.25, 47.15], [20.5, 47.25], [21.03, 47.03], [21.18, 46.68], [21.53, 46.53], [21.75, 46.0], [21.65, 45.75], [21.75, 45.5], [21.65, 45.25], [21.75, 45.0], [21.53, 44.47], [21.18, 44.32], [21.03, 43.97], [20.68, 43.82], [20.53, 43.47], [20.0, 43.25], [19.75, 43.35], [19.5, 43.25], [19.25, 43.35], [19.0, 43.25], [18.75, 43.35], [18.5, 43.25], [18.25, 43.35], [18.0, 43.25], [17.75, 43.35], [17.5, 43.25], [16.97, 43.47], [16.75, 44.0], [16.85, 44.25], [16.75, 44.5], [16.97, 45.03]]]]}, "2020-07-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[16.97, 45.03], [17.5, 45.25], [17.75, 45.15], [17.82, 45.18], [17.85, 45.25], [17.75, 45.5], [17.97, 46.03], [18.32, 46.18], [18.47, 46.53], [18.82, 46.68], [18.97, 47.03], [19.5, 47.25], [19.75, 47.15], [20.0, 47.25], [20.25, 47.15], [20.5, 47.25], [21.03, 47.03], [21.18, 46.68], [21.53, 46.53], [21.75, 46.0], [21.65, 45.75], [21.75, 45.5], [21.65, 45.25], [21.75, 45.0], [21.53, 44.47], [21.18, 44.32], [21.03, 43.97], [20.68, 43.82], [20.53, 43.47], [20.0, 43.25], [19.75, 43.35], [19.5, 43.25], [19.25, 43.35], [19.0, 43.25], [18.75, 43.35], [18.5, 43.25], [18.25, 43.35], [18.0, 43.25], [17.75, 43.35], [17.5, 43.25], [16.97, 43.47], [16.75, 44.0], [16.85, 44.25], [16.75, 44.5], [16.97, 45.03]]]]}, "2020-07-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[16.97, 45.03], [17.5, 45.25], [17.75, 45.15], [17.82, 45.18], [17.85, 45.25], [17.75, 45.5], [17.97, 46.03], [18.32, 46.18], [18.47, 46.53], [18.82, 46.68], [18.97, 47.03], [19.5, 47.25], [19.75, 47.15], [20.0, 47.25], [20.25, 47.15], [20.5, 47.25], [21.03, 47.03], [21.18, 46.68], [21.53, 46.53], [21.75, 46.0], [21.65, 45.75], [21.75, 45.5], [21.65, 45.25], [21.75, 45.0], [21.53, 44.47], [21.18, 44.32], [21.03, 43.97], [20.68, 43.82], [20.53, 43.47], [20.0, 43.25], [19.75, 43.35], [19.5, 43.25], [19.25, 43.35], [19.0, 43.25], [18.75, 43.35], [18.5, 43.25], [18.25, 43.35], [18.0, 43.25], [17.75, 43.35], [17.5, 43.25], [16.97, 43.47], [16.75, 44.0], [16.85, 44.25], [16.75, 44.5], [16.97, 45.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -6.877666855842335}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -5.494781121057835}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [16.20935732353621, 16.55067647539039, 16.73534589698005]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [12.295187135060644, 10.650361128268003, 12.706161376347211]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-5.7818110139339405, -5.439925542734426, -5.262606806505141]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-6.877666855842335, -6.8027039595909855, -6.206869257493338]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.731525736140508, -1.659794715872268, -1.6097940183707782]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.1328944989337724, -2.1239118426770323, -1.8454695620733854]}}