{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:04:36.885919", "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": "2016-Jan-28_to_2016-Jan-30_264.0_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": 2016010000739}, "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": "January 28 2016"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 30 2016"}, "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": 117245.75763521822}, "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": ["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", "North Pacific Ocean"]}, "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": 264.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "264.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 263.25}, "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": 15.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 21.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2016-01-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-97.15, 18.75], [-97.25, 19.0], [-97.15, 19.25], [-97.25, 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14.97], [-96.18, 15.32], [-96.53, 15.47], [-96.75, 16.0], [-96.53, 16.53], [-96.18, 16.68], [-96.15, 16.75], [-96.25, 17.0], [-96.15, 17.25], [-96.18, 17.32], [-96.25, 17.35], [-96.5, 17.25], [-97.03, 17.47], [-97.25, 18.0], [-97.15, 18.25], [-97.25, 18.5], [-97.15, 18.75]]]]}, "2016-01-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-97.15, 18.75], [-97.25, 19.0], [-97.15, 19.25], [-97.25, 19.5], [-97.03, 20.03], [-96.5, 20.25], [-95.97, 20.03], [-95.82, 19.68], [-95.75, 19.65], [-95.5, 19.75], [-94.97, 19.53], [-94.75, 19.0], [-94.85, 18.75], [-94.82, 18.68], [-94.75, 18.65], [-94.68, 18.68], [-94.53, 19.03], [-94.18, 19.18], [-94.15, 19.25], [-94.18, 19.32], [-94.53, 19.47], [-94.75, 20.0], [-94.65, 20.25], [-94.75, 20.5], [-94.53, 21.03], [-94.18, 21.18], [-94.03, 21.53], [-93.5, 21.75], [-93.25, 21.65], [-93.0, 21.75], [-92.47, 21.53], [-92.25, 21.0], [-92.35, 20.75], [-92.25, 20.5], [-92.35, 20.25], [-92.25, 20.0], [-92.35, 19.75], [-92.25, 19.5], [-92.37, 19.2], [-91.97, 19.03], [-91.75, 18.5], [-91.85, 18.25], [-91.75, 18.0], [-91.85, 17.75], [-91.75, 17.5], [-91.97, 16.97], [-92.5, 16.75], [-93.03, 16.97], [-93.18, 17.32], [-93.5, 17.46], [-93.82, 17.32], [-93.97, 16.97], [-94.5, 16.75], [-94.75, 16.85], [-94.82, 16.82], [-94.85, 16.75], [-94.82, 16.68], [-94.47, 16.53], [-94.25, 16.0], [-94.47, 15.47], [-94.82, 15.32], [-94.97, 14.97], [-95.5, 14.75], [-96.03, 14.97], [-96.18, 15.32], [-96.53, 15.47], [-96.75, 16.0], [-96.53, 16.53], [-96.18, 16.68], [-96.15, 16.75], [-96.25, 17.0], [-96.15, 17.25], [-96.18, 17.32], [-96.25, 17.35], [-96.5, 17.25], [-97.03, 17.47], [-97.25, 18.0], [-97.15, 18.25], [-97.25, 18.5], [-97.15, 18.75]]]]}, "2016-01-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-97.15, 18.75], [-97.25, 19.0], [-97.15, 19.25], [-97.25, 19.5], [-97.03, 20.03], [-96.5, 20.25], [-95.97, 20.03], [-95.82, 19.68], [-95.75, 19.65], [-95.5, 19.75], [-94.97, 19.53], [-94.75, 19.0], [-94.85, 18.75], [-94.82, 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17.35], [-96.5, 17.25], [-97.03, 17.47], [-97.25, 18.0], [-97.15, 18.25], [-97.25, 18.5], [-97.15, 18.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -5.756194427673847}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -3.016925747623221}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [19.3899521866432, 19.13165420194241, 20.368268985715417]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [12.920877096539073, 12.685363646777319, 14.378922903267892]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-3.186795331817052, -3.512607778327329, -2.351374132725283]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-5.37622080599624, -5.756194427673847, -4.318861911409385]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-2.1205410237047984, -2.446333647053499, -1.6093909011205572]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-3.1881318493549817, -3.1355298172971624, -2.3164779070760324]}}