{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:19:05.910226", "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": "2019-Feb-12_to_2019-Feb-14_300.5_-33.0"}, "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": 2019020000409}, "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": "February 12 2019"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 14 2019"}, "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": 84211.28606697774}, "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": ["Argentina"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.E.South-America"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["South America"]}, "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": -33.0}, "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": 300.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "300.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 298.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 302.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -33.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -29.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2019-02-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-61.53, -30.47], [-61.18, -30.32], [-61.03, -29.97], [-60.5, -29.75], [-60.25, -29.85], [-60.12, -29.8], [-60.25, -29.5], [-60.03, -28.97], [-59.5, -28.75], [-58.97, -28.97], [-58.82, -29.32], [-58.47, -29.47], [-58.32, -29.82], [-58.25, -29.85], [-58.0, -29.75], [-57.47, -29.97], [-57.25, -30.5], [-57.47, -31.03], [-57.82, -31.18], [-57.97, -31.53], [-58.32, -31.68], [-58.35, -31.75], [-58.25, -32.0], [-58.35, -32.25], [-58.25, -32.5], [-58.35, -32.75], [-58.25, -33.0], [-58.47, -33.53], [-58.82, -33.68], [-58.97, -34.03], [-59.5, -34.25], [-59.75, -34.15], [-60.0, -34.25], [-60.53, -34.03], [-60.68, -33.68], [-61.03, -33.53], [-61.25, -33.0], [-61.15, -32.75], [-61.18, -32.68], [-61.53, -32.53], [-61.75, -32.0], [-61.54, -31.5], [-61.75, -31.0], [-61.53, -30.47]]]]}, "2019-02-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-61.53, -30.47], [-61.18, -30.32], [-61.03, -29.97], [-60.5, -29.75], [-60.25, -29.85], [-60.12, -29.8], [-60.25, -29.5], [-60.03, -28.97], [-59.5, -28.75], [-58.97, -28.97], [-58.82, -29.32], [-58.47, -29.47], [-58.32, -29.82], [-58.25, -29.85], [-58.0, -29.75], [-57.47, -29.97], [-57.25, -30.5], [-57.47, -31.03], [-57.82, -31.18], [-57.97, -31.53], [-58.32, -31.68], [-58.35, -31.75], [-58.25, -32.0], [-58.35, -32.25], [-58.25, -32.5], [-58.35, -32.75], [-58.25, -33.0], [-58.47, -33.53], [-58.82, -33.68], [-58.97, -34.03], [-59.5, -34.25], [-59.75, -34.15], [-60.0, -34.25], [-60.53, -34.03], [-60.68, -33.68], [-61.03, -33.53], [-61.25, -33.0], [-61.15, -32.75], [-61.18, -32.68], [-61.53, -32.53], [-61.75, -32.0], [-61.54, -31.5], [-61.75, -31.0], [-61.53, -30.47]]]]}, "2019-02-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-61.53, -30.47], [-61.18, -30.32], [-61.03, -29.97], [-60.5, -29.75], [-60.25, -29.85], [-60.12, -29.8], [-60.25, -29.5], [-60.03, -28.97], [-59.5, -28.75], [-58.97, -28.97], [-58.82, -29.32], [-58.47, -29.47], [-58.32, -29.82], [-58.25, -29.85], [-58.0, -29.75], [-57.47, -29.97], [-57.25, -30.5], [-57.47, -31.03], [-57.82, -31.18], [-57.97, -31.53], [-58.32, -31.68], [-58.35, -31.75], [-58.25, -32.0], [-58.35, -32.25], [-58.25, -32.5], [-58.35, -32.75], [-58.25, -33.0], [-58.47, -33.53], [-58.82, -33.68], [-58.97, -34.03], [-59.5, -34.25], [-59.75, -34.15], [-60.0, -34.25], [-60.53, -34.03], [-60.68, -33.68], [-61.03, -33.53], [-61.25, -33.0], [-61.15, -32.75], [-61.18, -32.68], [-61.53, -32.53], [-61.75, -32.0], [-61.54, -31.5], [-61.75, -31.0], [-61.53, -30.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -5.89392909393024}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -4.529401383200843}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [19.217567764016167, 18.24790720167357, 20.43300875639011]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [17.329404703356943, 17.254698716788255, 19.540352328383335]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-4.593414487034428, -5.5557594434018345, -3.4390302191662645]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-5.808918921244697, -5.89392909393024, -3.8135675169765477]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.9159709587251066, -2.325594865678527, -1.4053441906828352]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.3205875639116305, -2.483034364194789, -1.540082813930705]}}