{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:53:17.247669", "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-May-14_to_2013-May-17_291.0_-35.0"}, "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": 2013050000548}, "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": "May 14 2013"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 17 2013"}, "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": 61078.8307278578}, "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", "S.W.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": -35.0}, "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": 291.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "291.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 290.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 292.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -37.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -32.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2013-05-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-69.5, -35.75], [-69.0, -35.96], [-68.5, -35.75], [-67.97, -35.97], [-67.75, -36.5], [-67.97, -37.03], [-68.5, -37.25], [-68.8, -37.12], [-68.97, -37.53], [-69.5, -37.75], [-70.03, -37.53], [-70.25, -37.0], [-70.15, -36.75], [-70.25, -36.5], [-70.03, -35.97], [-69.5, -35.75]]], [[[-69.53, -35.53], [-69.75, -35.0], [-69.53, -34.47], [-69.0, -34.25], [-68.47, -34.47], [-68.25, -35.0], [-68.47, -35.53], [-69.0, -35.75], [-69.53, -35.53]]]]}, "2013-05-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-70.03, -35.97], [-69.68, -35.82], [-69.65, -35.75], [-69.68, -35.68], [-70.03, -35.53], [-70.25, -35.0], [-70.03, -34.47], [-69.68, -34.32], [-69.54, -34.0], [-69.75, -33.5], [-69.53, -32.97], [-69.18, -32.82], [-69.15, -32.75], [-69.25, -32.5], [-69.03, -31.97], [-68.5, -31.75], [-68.25, -31.85], [-68.0, -31.75], [-67.47, -31.97], [-67.25, -32.5], [-67.35, -32.75], [-67.25, -33.0], [-67.35, -33.25], [-67.25, -33.5], [-67.35, -33.75], [-67.32, -33.82], [-66.97, -33.97], [-66.75, -34.5], [-66.85, -34.75], [-66.75, -35.0], [-66.85, -35.25], [-66.75, -35.5], [-66.97, -36.03], [-67.5, -36.25], [-67.93, -36.07], [-67.75, -36.5], [-67.97, -37.03], [-68.5, -37.25], [-68.8, -37.12], [-68.97, -37.53], [-69.5, -37.75], [-70.03, -37.53], [-70.25, -37.0], [-70.15, -36.75], [-70.25, -36.5], [-70.03, -35.97]], [[-68.32, -35.68], [-68.35, -35.75], [-68.32, -35.82], [-68.07, -35.93], [-68.18, -35.68], [-68.25, -35.65], [-68.32, -35.68]]]]}, "2013-05-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-70.03, -35.97], [-69.68, -35.82], [-69.65, -35.75], [-69.68, -35.68], [-70.03, -35.53], [-70.25, -35.0], [-70.03, -34.47], [-69.68, -34.32], [-69.54, -34.0], [-69.75, -33.5], [-69.53, -32.97], [-69.18, -32.82], [-69.15, -32.75], [-69.25, -32.5], [-69.03, -31.97], [-68.5, -31.75], [-68.25, -31.85], [-68.0, -31.75], [-67.47, -31.97], [-67.25, -32.5], [-67.35, -32.75], [-67.25, -33.0], [-67.35, -33.25], [-67.25, -33.5], [-67.35, -33.75], [-67.32, -33.82], [-66.97, -33.97], [-66.75, -34.5], [-66.85, -34.75], [-66.75, -35.0], [-66.85, -35.25], [-66.75, -35.5], [-66.97, -36.03], [-67.5, -36.25], [-67.93, -36.07], [-67.75, -36.5], [-67.97, -37.03], [-68.5, -37.25], [-68.8, -37.12], [-68.97, -37.53], [-69.5, -37.75], [-70.03, -37.53], [-70.25, -37.0], [-70.15, -36.75], [-70.25, -36.5], [-70.03, -35.97]], [[-68.32, -35.68], [-68.35, -35.75], [-68.32, -35.82], [-68.07, -35.93], [-68.18, -35.68], [-68.25, -35.65], [-68.32, -35.68]]]]}, "2013-05-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-70.25, -35.0], [-70.03, -34.47], [-69.68, -34.32], [-69.54, -34.0], [-69.75, -33.5], [-69.53, -32.97], [-69.18, -32.82], [-69.15, -32.75], [-69.25, -32.5], [-69.03, -31.97], [-68.5, -31.75], [-68.25, -31.85], [-68.0, -31.75], [-67.47, -31.97], [-67.25, -32.5], [-67.35, -32.75], [-67.25, -33.0], [-67.35, -33.25], [-67.25, -33.5], [-67.35, -33.75], [-67.32, -33.82], [-66.97, -33.97], [-66.75, -34.5], [-66.85, -34.75], [-66.75, -35.0], [-66.85, -35.25], [-66.75, -35.5], [-66.97, -36.03], [-67.5, -36.25], [-68.03, -36.03], [-68.18, -35.68], [-68.25, -35.65], [-68.32, -35.68], [-68.35, -35.75], [-68.25, -36.0], [-68.47, -36.53], [-69.0, -36.75], [-69.53, -36.53], [-69.75, -36.0], [-69.65, -35.75], [-69.68, -35.68], [-70.03, -35.53], [-70.25, -35.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -7.34530257749185}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -4.845112453687013}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [3.113277422061799, 5.388888642914594, 4.8187720325177, 5.83297915321964]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [1.3984755947308827, -0.655590152273362, -2.244982520403198, 0.2917628972138573]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-4.609485182445837, -4.9026343034953115, -5.225161174862542, -4.389913186132387]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-5.002662987801671, -6.504864678238107, -7.34530257749185, -5.279397097063679]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.5786404707075157, -1.771062605048062, -1.8719871079945196, -1.5745587438396256]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.731285564798472, -2.1702609196054135, -2.3892020455227865, -2.0575515332083523]}}