{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:48:48.155989", "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": "2011-Nov-10_to_2011-Nov-12_263.0_20.5"}, "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": 2011110000624}, "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": "November 10 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 12 2011"}, "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": 63224.34132060083}, "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": ["Mexico"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.Central-America", "S.Central-America"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["North 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": ["Gulf of Mexico"]}, "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": 20.5}, "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": 263.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "263.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 259.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 264.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 18.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 24.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-11-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-101.15, 23.25], [-101.25, 23.5], [-101.15, 23.75], [-101.25, 24.0], [-101.03, 24.53], [-100.5, 24.75], [-99.97, 24.53], [-99.75, 24.0], [-99.85, 23.75], [-99.82, 23.68], [-99.75, 23.65], [-99.5, 23.75], [-98.97, 23.53], [-98.75, 23.0], [-98.85, 22.75], [-98.82, 22.68], [-98.47, 22.53], [-98.25, 22.0], [-98.35, 21.75], [-98.32, 21.68], [-97.97, 21.53], [-97.82, 21.18], [-97.75, 21.15], [-97.5, 21.25], [-97.25, 21.15], [-97.0, 21.25], [-96.47, 21.03], [-96.25, 20.5], [-96.35, 20.25], [-96.32, 20.18], [-96.25, 20.15], [-96.0, 20.25], [-95.47, 20.03], [-95.32, 19.68], [-94.97, 19.53], [-94.75, 19.0], [-94.97, 18.47], [-95.5, 18.25], [-96.03, 18.47], [-96.18, 18.82], [-96.25, 18.85], [-96.5, 18.75], [-97.03, 18.97], [-97.18, 19.32], [-97.53, 19.47], [-97.68, 19.82], [-97.75, 19.85], [-98.0, 19.75], [-98.53, 19.97], [-98.68, 20.32], [-98.75, 20.35], [-99.0, 20.25], [-99.53, 20.47], [-99.68, 20.82], [-100.03, 20.97], [-100.18, 21.32], [-100.53, 21.47], [-100.68, 21.82], [-101.03, 21.97], [-101.25, 22.5], [-101.15, 22.75], [-101.25, 23.0], [-101.15, 23.25]]]]}, "2011-11-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-101.15, 23.25], [-101.25, 23.5], [-101.15, 23.75], [-101.25, 24.0], [-101.03, 24.53], [-100.5, 24.75], [-99.97, 24.53], [-99.75, 24.0], [-99.85, 23.75], [-99.82, 23.68], [-99.75, 23.65], [-99.5, 23.75], [-98.97, 23.53], [-98.75, 23.0], [-98.85, 22.75], [-98.82, 22.68], [-98.47, 22.53], [-98.25, 22.0], [-98.35, 21.75], [-98.32, 21.68], [-97.97, 21.53], [-97.82, 21.18], [-97.75, 21.15], [-97.5, 21.25], [-97.25, 21.15], [-97.0, 21.25], [-96.47, 21.03], [-96.25, 20.5], [-96.35, 20.25], [-96.32, 20.18], [-96.25, 20.15], [-96.0, 20.25], [-95.47, 20.03], [-95.32, 19.68], [-94.97, 19.53], [-94.75, 19.0], [-94.97, 18.47], [-95.5, 18.25], [-96.03, 18.47], [-96.18, 18.82], [-96.25, 18.85], [-96.5, 18.75], [-97.03, 18.97], [-97.18, 19.32], [-97.53, 19.47], [-97.68, 19.82], [-97.75, 19.85], [-98.0, 19.75], [-98.53, 19.97], [-98.68, 20.32], [-98.75, 20.35], [-99.0, 20.25], [-99.53, 20.47], [-99.68, 20.82], [-100.03, 20.97], [-100.18, 21.32], [-100.53, 21.47], [-100.68, 21.82], [-101.03, 21.97], [-101.25, 22.5], [-101.15, 22.75], [-101.25, 23.0], [-101.15, 23.25]]]]}, "2011-11-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-101.15, 23.25], [-101.25, 23.5], [-101.15, 23.75], [-101.25, 24.0], [-101.03, 24.53], [-100.5, 24.75], [-99.97, 24.53], [-99.75, 24.0], [-99.85, 23.75], [-99.82, 23.68], [-99.75, 23.65], [-99.5, 23.75], [-98.97, 23.53], [-98.75, 23.0], [-98.85, 22.75], [-98.82, 22.68], [-98.47, 22.53], [-98.25, 22.0], [-98.35, 21.75], [-98.32, 21.68], [-97.97, 21.53], [-97.82, 21.18], [-97.75, 21.15], [-97.5, 21.25], [-97.25, 21.15], [-97.0, 21.25], [-96.47, 21.03], [-96.25, 20.5], [-96.35, 20.25], [-96.32, 20.18], [-96.25, 20.15], [-96.0, 20.25], [-95.47, 20.03], [-95.32, 19.68], [-94.97, 19.53], [-94.75, 19.0], [-94.97, 18.47], [-95.5, 18.25], [-96.03, 18.47], [-96.18, 18.82], [-96.25, 18.85], [-96.5, 18.75], [-97.03, 18.97], [-97.18, 19.32], [-97.53, 19.47], [-97.68, 19.82], [-97.75, 19.85], [-98.0, 19.75], [-98.53, 19.97], [-98.68, 20.32], [-98.75, 20.35], [-99.0, 20.25], [-99.53, 20.47], [-99.68, 20.82], [-100.03, 20.97], [-100.18, 21.32], [-100.53, 21.47], [-100.68, 21.82], [-101.03, 21.97], [-101.25, 22.5], [-101.15, 22.75], [-101.25, 23.0], [-101.15, 23.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -6.929115058929256}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -4.751364173763566}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [14.280652859582403, 13.699415844461498, 15.787674058914774]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [9.560470145206807, 8.553593961572858, 11.59313348636232]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-5.183190085554008, -5.627095795321036, -3.4438066404156533]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-6.657027969241085, -6.929115058929256, -4.325695004427587]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-2.2336306634891616, -2.3840227482827006, -1.405526940882162]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.761640002067192, -2.7951750208792605, -1.5660476769137361]}}