{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:45:09.279261", "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-Jul-17_to_2010-Jul-23_266.0_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": 2010070000737}, "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": "July 17 2010"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 23 2010"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 7}, "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": 66547.53926561444}, "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": 266.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "266.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 265.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 267.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 18.25}, "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": {"2010-07-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-94.0, 19.75], [-93.47, 19.53], [-93.25, 19.0], [-93.47, 18.47], [-94.0, 18.25], [-94.53, 18.47], [-94.75, 19.0], [-94.53, 19.53], [-94.0, 19.75]]]]}, "2010-07-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-94.0, 19.75], [-93.47, 19.53], [-93.25, 19.0], [-93.47, 18.47], [-94.0, 18.25], [-94.53, 18.47], [-94.75, 19.0], [-94.53, 19.53], [-94.0, 19.75]]]]}, "2010-07-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-94.0, 19.75], [-93.47, 19.53], [-93.25, 19.0], [-93.47, 18.47], [-94.0, 18.25], [-94.53, 18.47], [-94.75, 19.0], [-94.53, 19.53], [-94.0, 19.75]]]]}, "2010-07-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-94.65, 19.75], [-94.75, 20.0], [-94.53, 20.53], [-94.18, 20.68], [-94.03, 21.03], [-93.5, 21.25], [-93.25, 21.15], [-93.0, 21.25], [-92.47, 21.03], [-92.32, 20.68], [-91.97, 20.53], [-91.75, 20.0], [-91.85, 19.75], [-91.75, 19.5], [-91.97, 18.97], [-92.5, 18.75], [-92.8, 18.88], [-92.97, 18.47], [-93.5, 18.25], [-93.75, 18.35], [-94.0, 18.25], [-94.53, 18.47], [-94.75, 19.0], [-94.65, 19.25], [-94.75, 19.5], [-94.65, 19.75]]]]}, "2010-07-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-95.25, 22.0], [-95.03, 22.53], [-94.5, 22.75], [-94.2, 22.62], [-94.15, 22.75], [-94.25, 23.0], [-94.03, 23.53], [-93.5, 23.75], [-92.97, 23.53], [-92.75, 23.0], [-92.85, 22.75], [-92.82, 22.68], [-92.47, 22.53], [-92.32, 22.18], [-91.97, 22.03], [-91.75, 21.5], [-91.97, 20.97], [-92.37, 20.8], [-92.32, 20.68], [-91.97, 20.53], [-91.75, 20.0], [-91.85, 19.75], [-91.75, 19.5], [-91.96, 19.0], [-91.75, 18.5], [-91.97, 17.97], [-92.5, 17.75], [-92.75, 17.85], [-93.0, 17.75], [-93.53, 17.97], [-93.68, 18.32], [-93.75, 18.35], [-94.0, 18.25], [-94.53, 18.47], [-94.75, 19.0], [-94.65, 19.25], [-94.75, 19.5], [-94.65, 19.75], [-94.75, 20.0], [-94.53, 20.53], [-94.18, 20.68], [-94.15, 20.75], [-94.18, 20.82], [-94.53, 20.97], [-94.68, 21.32], [-95.03, 21.47], [-95.25, 22.0]]]]}, "2010-07-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": 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[-92.5, 17.75], [-92.75, 17.85], [-93.0, 17.75], [-93.53, 17.97], [-93.75, 18.5]]], [[[-95.03, 22.53], [-94.5, 22.75], [-94.2, 22.62], [-94.15, 22.75], [-94.25, 23.0], [-94.03, 23.53], [-93.5, 23.75], [-92.97, 23.53], [-92.75, 23.0], [-92.85, 22.75], [-92.82, 22.68], [-92.47, 22.53], [-92.32, 22.18], [-91.97, 22.03], [-91.75, 21.5], [-91.97, 20.97], [-92.5, 20.75], [-92.75, 20.85], [-92.82, 20.82], [-92.97, 20.47], [-93.37, 20.3], [-93.25, 20.0], [-93.47, 19.47], [-94.0, 19.25], [-94.53, 19.47], [-94.75, 20.0], [-94.53, 20.53], [-94.12, 20.7], [-94.18, 20.82], [-94.53, 20.97], [-94.68, 21.32], [-95.03, 21.47], [-95.25, 22.0], [-95.03, 22.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -2.299650139398011}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.1290206908449514}, "evo_areamean": {"name": "Evolution of mean t2m", 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