{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:45:49.152733", "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": "2010-Oct-14_to_2010-Oct-17_263.0_19.0"}, "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": 2010100000581}, "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": "October 14 2010"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 17 2010"}, "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": 165767.28069401323}, "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": 19.0}, "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": 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": 258.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 265.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 16.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 23.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2010-10-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-101.75, 22.0], [-101.53, 22.53], [-101.18, 22.68], [-101.03, 23.03], [-100.5, 23.25], [-99.97, 23.03], [-99.75, 22.5], [-99.85, 22.25], [-99.75, 22.0], [-99.85, 21.75], [-99.82, 21.68], [-99.75, 21.65], [-99.5, 21.75], [-98.97, 21.53], [-98.82, 21.18], [-98.75, 21.15], [-98.5, 21.25], [-97.97, 21.03], [-97.82, 20.68], [-97.47, 20.53], [-97.3, 20.12], [-97.0, 20.25], [-96.47, 20.03], [-96.25, 19.5], [-96.35, 19.25], [-96.25, 19.0], [-96.35, 18.75], [-96.32, 18.68], [-95.97, 18.53], [-95.82, 18.18], [-95.57, 18.07], [-95.75, 18.5], [-95.53, 19.03], [-95.0, 19.25], [-94.47, 19.03], [-94.25, 18.5], [-94.47, 17.97], [-95.0, 17.75], [-95.43, 17.93], [-95.25, 17.5], [-95.35, 17.25], [-95.25, 17.0], [-95.35, 16.75], [-95.25, 16.5], [-95.47, 15.97], [-96.0, 15.75], [-96.25, 15.85], [-96.5, 15.75], [-97.03, 15.97], [-97.25, 16.5], [-97.12, 16.8], [-97.25, 16.85], [-97.5, 16.75], [-97.75, 16.85], [-98.0, 16.75], [-98.53, 16.97], [-98.75, 17.5], [-98.65, 17.75], [-98.7, 17.88], [-99.0, 17.75], [-99.53, 17.97], [-99.75, 18.5], [-99.54, 19.0], [-99.68, 19.32], [-99.75, 19.35], [-100.0, 19.25], [-100.53, 19.47], [-100.75, 20.0], [-100.65, 20.25], [-100.75, 20.5], [-100.65, 20.75], [-100.68, 20.82], [-101.03, 20.97], [-101.18, 21.32], [-101.53, 21.47], [-101.75, 22.0]]]]}, "2010-10-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-101.75, 22.0], [-101.53, 22.53], [-101.18, 22.68], [-101.03, 23.03], [-100.68, 23.18], [-100.53, 23.53], [-100.0, 23.75], [-99.75, 23.65], [-99.5, 23.75], [-98.97, 23.53], [-98.75, 23.0], [-98.85, 22.75], [-98.75, 22.5], [-98.85, 22.25], [-98.82, 22.18], [-98.47, 22.03], [-98.32, 21.68], [-97.97, 21.53], [-97.82, 21.18], [-97.47, 21.03], [-97.25, 20.5], [-97.35, 20.25], [-97.3, 20.12], [-97.0, 20.25], [-96.75, 20.15], [-96.5, 20.25], [-96.25, 20.15], [-96.0, 20.25], [-95.75, 20.15], [-95.5, 20.25], [-94.97, 20.03], [-94.82, 19.68], [-94.75, 19.65], [-94.5, 19.75], [-93.97, 19.53], [-93.75, 19.0], [-93.85, 18.75], [-93.75, 18.5], [-93.97, 17.97], [-94.5, 17.75], [-94.75, 17.85], [-95.0, 17.75], [-95.43, 17.93], [-95.25, 17.5], [-95.35, 17.25], [-95.25, 17.0], [-95.35, 16.75], [-95.25, 16.5], [-95.47, 15.97], [-96.0, 15.75], [-96.25, 15.85], [-96.5, 15.75], [-97.03, 15.97], [-97.25, 16.5], [-97.12, 16.8], [-97.25, 16.85], [-97.5, 16.75], [-97.75, 16.85], [-98.0, 16.75], [-98.53, 16.97], [-98.75, 17.5], [-98.65, 17.75], [-98.68, 17.82], [-98.75, 17.85], [-99.0, 17.75], [-99.53, 17.97], [-99.75, 18.5], [-99.54, 19.0], [-99.68, 19.32], [-99.75, 19.35], [-100.0, 19.25], [-100.53, 19.47], [-100.75, 20.0], [-100.65, 20.25], [-100.75, 20.5], [-100.65, 20.75], [-100.68, 20.82], [-101.03, 20.97], [-101.18, 21.32], [-101.53, 21.47], [-101.75, 22.0]], [[-96.18, 18.82], [-96.25, 18.85], [-96.32, 18.82], [-96.35, 18.75], [-96.32, 18.68], [-96.07, 18.57], [-96.18, 18.82]], [[-95.57, 18.07], [-95.68, 18.32], [-95.93, 18.43], [-95.82, 18.18], [-95.57, 18.07]]]]}, "2010-10-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-101.75, 22.0], [-101.53, 22.53], [-101.18, 22.68], [-101.03, 23.03], [-100.68, 23.18], [-100.53, 23.53], [-100.0, 23.75], [-99.75, 23.65], [-99.5, 23.75], [-98.97, 23.53], [-98.75, 23.0], [-98.85, 22.75], [-98.75, 22.5], [-98.85, 22.25], [-98.82, 22.18], [-98.47, 22.03], [-98.32, 21.68], [-97.97, 21.53], [-97.82, 21.18], [-97.47, 21.03], [-97.25, 20.5], [-97.35, 20.25], [-97.3, 20.12], [-97.0, 20.25], [-96.75, 20.15], [-96.5, 20.25], [-96.25, 20.15], [-96.0, 20.25], [-95.75, 20.15], [-95.5, 20.25], [-94.97, 20.03], [-94.82, 19.68], [-94.75, 19.65], [-94.5, 19.75], [-93.97, 19.53], [-93.75, 19.0], [-93.85, 18.75], [-93.75, 18.5], [-93.97, 17.97], [-94.5, 17.75], [-94.75, 17.85], [-95.0, 17.75], [-95.43, 17.93], [-95.25, 17.5], [-95.35, 17.25], [-95.25, 17.0], [-95.35, 16.75], [-95.25, 16.5], [-95.47, 15.97], [-96.0, 15.75], [-96.25, 15.85], [-96.5, 15.75], [-97.03, 15.97], [-97.25, 16.5], [-97.12, 16.8], [-97.25, 16.85], [-97.5, 16.75], [-97.75, 16.85], [-98.0, 16.75], [-98.53, 16.97], [-98.75, 17.5], [-98.65, 17.75], [-98.68, 17.82], [-98.75, 17.85], [-99.0, 17.75], [-99.53, 17.97], [-99.75, 18.5], [-99.54, 19.0], [-99.68, 19.32], [-99.75, 19.35], [-100.0, 19.25], [-100.53, 19.47], [-100.75, 20.0], [-100.65, 20.25], [-100.75, 20.5], [-100.65, 20.75], [-100.68, 20.82], [-101.03, 20.97], [-101.18, 21.32], [-101.53, 21.47], [-101.75, 22.0]], [[-96.18, 18.82], [-96.25, 18.85], [-96.32, 18.82], [-96.35, 18.75], [-96.32, 18.68], [-96.07, 18.57], [-96.18, 18.82]], [[-95.57, 18.07], [-95.68, 18.32], [-95.93, 18.43], [-95.82, 18.18], [-95.57, 18.07]]]]}, "2010-10-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-101.15, 22.25], [-101.25, 22.5], [-101.03, 23.03], [-100.68, 23.18], [-100.53, 23.53], [-100.0, 23.75], [-99.75, 23.65], [-99.5, 23.75], [-98.97, 23.53], [-98.75, 23.0], [-98.85, 22.75], [-98.75, 22.5], [-98.85, 22.25], [-98.82, 22.18], [-98.47, 22.03], [-98.32, 21.68], [-97.97, 21.53], [-97.82, 21.18], [-97.47, 21.03], [-97.25, 20.5], [-97.43, 20.07], [-97.0, 20.25], [-96.75, 20.15], [-96.5, 20.25], [-96.25, 20.15], [-96.0, 20.25], [-95.75, 20.15], [-95.5, 20.25], [-94.97, 20.03], [-94.82, 19.68], [-94.75, 19.65], [-94.5, 19.75], [-93.97, 19.53], [-93.75, 19.0], [-93.85, 18.75], [-93.75, 18.5], [-93.97, 17.97], [-94.5, 17.75], [-95.03, 17.97], [-95.18, 18.32], [-95.25, 18.35], [-95.5, 18.25], [-96.03, 18.47], [-96.18, 18.82], [-96.25, 18.85], [-96.32, 18.82], [-96.35, 18.75], [-96.25, 18.5], [-96.47, 17.97], [-97.0, 17.75], [-97.5, 17.96], [-98.0, 17.75], [-98.25, 17.85], [-98.5, 17.75], [-99.03, 17.97], [-99.25, 18.5], [-99.03, 19.03], [-98.5, 19.25], [-98.25, 19.15], [-98.0, 19.25], [-97.7, 19.12], [-97.65, 19.25], [-97.75, 19.5], [-97.57, 19.93], [-98.0, 19.75], [-98.25, 19.85], [-98.32, 19.82], [-98.47, 19.47], [-99.0, 19.25], [-99.53, 19.47], [-99.68, 19.82], [-100.03, 19.97], [-100.18, 20.32], [-100.53, 20.47], [-100.68, 20.82], [-101.03, 20.97], [-101.25, 21.5], [-101.15, 21.75], [-101.25, 22.0], [-101.15, 22.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -4.929411926702585}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.9451582457411893}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [15.17027557385211, 16.247355230009987, 16.882257024923376, 17.713439668240426]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [9.928875911686475, 8.897842523949976, 10.606523909781288, 12.684818304622866]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.7064404343543904, -3.3794924489875813, -2.693164367805647, -2.897860078425822]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-3.8750939396739454, -4.929411926702585, -4.363314872828482, -4.292280625563933]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.7193984831504239, -2.0659343684377567, -1.5733571501398091, -1.5658518952746294]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.3452281479353085, -2.769459106893617, -2.08647489706857, -1.9503484273742262]}}