{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:57:04.607733", "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": "2014-Aug-17_to_2014-Aug-20_345.0_32.0"}, "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": 2014080000807}, "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 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 20 2014"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "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": 170532.8468823658}, "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": ["Madeira"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.Atlantic-Ocean", "Sahara"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Africa"]}, "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": ["North Atlantic Ocean"]}, "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": 32.0}, "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": 345.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "345.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 342.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 346.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 28.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 35.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-08-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-17.53, 31.03], [-17.18, 31.18], [-17.15, 31.25], [-17.25, 31.5], [-17.15, 31.75], [-17.25, 32.0], [-17.15, 32.25], [-17.18, 32.32], [-17.25, 32.35], [-17.5, 32.25], [-18.03, 32.47], [-18.25, 33.0], [-18.03, 33.53], [-17.5, 33.75], [-17.25, 33.65], [-17.18, 33.68], [-17.03, 34.03], [-16.5, 34.25], [-16.25, 34.15], [-16.18, 34.18], [-16.03, 34.53], [-15.68, 34.68], [-15.53, 35.03], [-15.18, 35.18], [-15.03, 35.53], [-14.5, 35.75], [-13.97, 35.53], [-13.75, 35.0], [-13.85, 34.75], [-13.82, 34.68], [-13.47, 34.53], [-13.25, 34.0], [-13.35, 33.75], [-13.25, 33.5], [-13.35, 33.25], [-13.25, 33.0], [-13.35, 32.75], [-13.25, 32.5], [-13.35, 32.25], [-13.25, 32.0], [-13.35, 31.75], [-13.25, 31.5], [-13.35, 31.25], [-13.25, 31.0], [-13.47, 30.47], [-13.82, 30.32], [-13.85, 30.25], [-13.75, 30.0], [-13.97, 29.47], [-14.32, 29.32], [-14.47, 28.97], [-15.0, 28.75], [-15.25, 28.85], [-15.32, 28.82], [-15.47, 28.47], [-16.0, 28.25], [-16.53, 28.47], [-16.68, 28.82], [-17.03, 28.97], [-17.18, 29.32], [-17.53, 29.47], [-17.75, 30.0], [-17.65, 30.25], [-17.75, 30.5], [-17.53, 31.03]]]]}, "2014-08-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-17.65, 30.75], [-17.75, 31.0], [-17.65, 31.25], [-17.75, 31.5], [-17.53, 32.03], [-17.18, 32.18], [-17.15, 32.25], [-17.18, 32.32], [-17.25, 32.35], [-17.5, 32.25], [-18.03, 32.47], [-18.25, 33.0], [-18.03, 33.53], [-17.5, 33.75], [-17.25, 33.65], [-17.18, 33.68], [-17.03, 34.03], [-16.5, 34.25], [-16.25, 34.15], [-16.18, 34.18], [-16.03, 34.53], [-15.68, 34.68], [-15.53, 35.03], [-15.18, 35.18], [-15.03, 35.53], [-14.5, 35.75], [-13.97, 35.53], [-13.75, 35.0], [-13.85, 34.75], [-13.82, 34.68], [-13.47, 34.53], [-13.32, 34.18], [-12.97, 34.03], [-12.75, 33.5], [-12.97, 32.97], [-13.32, 32.82], [-13.35, 32.75], [-13.25, 32.5], [-13.35, 32.25], [-13.25, 32.0], [-13.35, 31.75], [-13.25, 31.5], [-13.35, 31.25], [-13.25, 31.0], [-13.47, 30.47], [-13.82, 30.32], [-13.85, 30.25], [-13.75, 30.0], [-13.97, 29.47], [-14.32, 29.32], [-14.47, 28.97], [-15.0, 28.75], [-15.25, 28.85], [-15.32, 28.82], [-15.47, 28.47], [-16.0, 28.25], [-16.53, 28.47], [-16.68, 28.82], [-17.03, 28.97], [-17.18, 29.32], [-17.53, 29.47], [-17.75, 30.0], [-17.65, 30.25], [-17.75, 30.5], [-17.65, 30.75]]]]}, "2014-08-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-17.65, 30.75], [-17.75, 31.0], [-17.65, 31.25], [-17.75, 31.5], [-17.53, 32.03], [-17.18, 32.18], [-17.15, 32.25], [-17.18, 32.32], [-17.25, 32.35], [-17.5, 32.25], [-18.03, 32.47], [-18.25, 33.0], [-18.03, 33.53], [-17.5, 33.75], [-17.25, 33.65], [-17.18, 33.68], [-17.03, 34.03], [-16.5, 34.25], [-16.25, 34.15], [-16.18, 34.18], [-16.03, 34.53], [-15.68, 34.68], [-15.53, 35.03], [-15.18, 35.18], [-15.03, 35.53], [-14.5, 35.75], [-13.97, 35.53], [-13.75, 35.0], [-13.85, 34.75], [-13.82, 34.68], [-13.47, 34.53], [-13.32, 34.18], [-12.97, 34.03], [-12.75, 33.5], [-12.97, 32.97], [-13.32, 32.82], [-13.35, 32.75], [-13.25, 32.5], [-13.35, 32.25], [-13.25, 32.0], [-13.35, 31.75], [-13.25, 31.5], [-13.35, 31.25], [-13.25, 31.0], [-13.47, 30.47], [-13.82, 30.32], [-13.85, 30.25], [-13.75, 30.0], [-13.97, 29.47], [-14.32, 29.32], [-14.47, 28.97], [-15.0, 28.75], [-15.25, 28.85], [-15.32, 28.82], [-15.47, 28.47], [-16.0, 28.25], [-16.53, 28.47], [-16.68, 28.82], [-17.03, 28.97], [-17.18, 29.32], [-17.53, 29.47], [-17.75, 30.0], [-17.65, 30.25], [-17.75, 30.5], [-17.65, 30.75]]]]}, "2014-08-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-17.65, 30.75], [-17.75, 31.0], [-17.65, 31.25], [-17.75, 31.5], [-17.53, 32.03], [-17.0, 32.25], [-16.75, 32.15], [-16.68, 32.18], [-16.53, 32.53], [-16.0, 32.75], [-15.75, 32.65], [-15.5, 32.75], [-15.25, 32.65], [-15.18, 32.68], [-15.03, 33.03], [-14.68, 33.18], [-14.53, 33.53], [-14.18, 33.68], [-14.03, 34.03], [-13.5, 34.25], [-12.97, 34.03], [-12.75, 33.5], [-12.97, 32.97], [-13.32, 32.82], [-13.35, 32.75], [-13.25, 32.5], [-13.35, 32.25], [-13.25, 32.0], [-13.47, 31.47], [-13.82, 31.32], [-13.85, 31.25], [-13.75, 31.0], [-13.97, 30.47], [-14.32, 30.32], [-14.47, 29.97], [-15.0, 29.75], [-15.25, 29.85], [-15.32, 29.82], [-15.47, 29.47], [-16.0, 29.25], [-16.25, 29.35], [-16.5, 29.25], [-16.75, 29.35], [-17.0, 29.25], [-17.53, 29.47], [-17.75, 30.0], [-17.65, 30.25], [-17.75, 30.5], [-17.65, 30.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -1.6553621159273462}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.1040635555679046}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [21.16570388593891, 20.89244397588169, 21.076112503856393, 21.407411740385044]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [20.32078124480921, 20.20300907769905, 20.587246765373777, 21.094050602537493]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-0.9841793044935266, -1.2941894759373747, -1.12850023827548, -0.879451637174921]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.249832882427313, -1.6553621159273462, -1.2744465699599345, -0.9688462558771676]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.4715298370846697, -1.9356191360050632, -1.700123261476058, -1.34606252621998]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.787723583263654, -2.2925675987572682, -2.000164552089257, -1.465552922129685]}}