{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:53:36.602539", "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-Jun-20_to_2013-Jun-24_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": 2013060000856}, "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": "June 20 2013"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 24 2013"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 66868.66306113197}, "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": 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": 261.25}, "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": 17.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 22.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2013-06-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-99.03, 22.53], [-98.5, 22.75], [-97.97, 22.53], [-97.82, 22.18], [-97.47, 22.03], [-97.32, 21.68], [-96.97, 21.53], [-96.82, 21.18], [-96.47, 21.03], [-96.32, 20.68], [-95.97, 20.53], [-95.82, 20.18], [-95.47, 20.03], [-95.25, 19.5], [-95.35, 19.25], [-95.25, 19.0], [-95.35, 18.75], [-95.25, 18.5], [-95.47, 17.97], [-96.0, 17.75], [-96.25, 17.85], [-96.5, 17.75], [-97.03, 17.97], [-97.25, 18.5], [-97.15, 18.75], [-97.18, 18.82], [-97.25, 18.85], [-97.5, 18.75], [-97.75, 18.85], [-98.0, 18.75], [-98.53, 18.97], [-98.75, 19.5], [-98.54, 20.0], [-98.75, 20.5], [-98.65, 20.75], [-98.68, 20.82], [-99.03, 20.97], [-99.25, 21.5], [-99.15, 21.75], [-99.25, 22.0], [-99.03, 22.53]]]]}, "2013-06-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-99.03, 22.53], [-98.5, 22.75], [-97.97, 22.53], [-97.82, 22.18], [-97.47, 22.03], [-97.32, 21.68], [-96.97, 21.53], [-96.82, 21.18], [-96.47, 21.03], [-96.32, 20.68], [-95.97, 20.53], [-95.82, 20.18], [-95.47, 20.03], [-95.25, 19.5], [-95.35, 19.25], [-95.25, 19.0], [-95.35, 18.75], [-95.32, 18.68], [-94.97, 18.53], [-94.75, 18.0], [-94.97, 17.47], [-95.5, 17.25], [-95.75, 17.35], [-96.0, 17.25], [-96.53, 17.47], [-96.68, 17.82], [-97.03, 17.97], [-97.25, 18.5], [-97.15, 18.75], [-97.18, 18.82], [-97.25, 18.85], [-97.5, 18.75], [-97.75, 18.85], [-98.0, 18.75], [-98.53, 18.97], [-98.75, 19.5], [-98.54, 20.0], [-98.75, 20.5], [-98.65, 20.75], [-98.68, 20.82], [-99.03, 20.97], [-99.25, 21.5], [-99.15, 21.75], [-99.25, 22.0], [-99.03, 22.53]]]]}, "2013-06-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-99.03, 22.53], [-98.5, 22.75], [-97.97, 22.53], [-97.82, 22.18], [-97.47, 22.03], [-97.32, 21.68], [-96.97, 21.53], [-96.82, 21.18], [-96.47, 21.03], [-96.32, 20.68], [-95.97, 20.53], [-95.82, 20.18], [-95.47, 20.03], [-95.32, 19.68], [-94.97, 19.53], [-94.75, 19.0], [-94.96, 18.5], [-94.75, 18.0], [-94.97, 17.47], [-95.5, 17.25], [-95.75, 17.35], [-96.0, 17.25], [-96.53, 17.47], [-96.68, 17.82], [-97.03, 17.97], [-97.25, 18.5], [-97.15, 18.75], [-97.18, 18.82], [-97.25, 18.85], [-97.5, 18.75], [-97.75, 18.85], [-98.0, 18.75], [-98.53, 18.97], [-98.75, 19.5], [-98.54, 20.0], [-98.75, 20.5], [-98.65, 20.75], [-98.68, 20.82], [-99.03, 20.97], [-99.25, 21.5], [-99.15, 21.75], [-99.25, 22.0], [-99.03, 22.53]]]]}, "2013-06-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-96.53, 20.03], [-96.0, 20.25], [-95.47, 20.03], [-95.32, 19.68], [-94.97, 19.53], [-94.75, 19.0], [-94.96, 18.5], [-94.75, 18.0], [-94.97, 17.47], [-95.5, 17.25], [-95.75, 17.35], [-96.0, 17.25], [-96.53, 17.47], [-96.75, 18.0], [-96.54, 18.5], [-96.75, 19.0], [-96.65, 19.25], [-96.75, 19.5], [-96.53, 20.03]]]]}, "2013-06-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-95.5, 19.75], [-94.97, 19.53], [-94.75, 19.0], [-94.97, 18.47], [-95.5, 18.25], [-96.03, 18.47], [-96.25, 19.0], [-96.03, 19.53], [-95.5, 19.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -4.485150863601746}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.111636680373168}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [23.446233446666895, 23.22868594938211, 23.76235044513669, 25.987040963842674, 26.091077827250047]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [13.47442549206636, 13.501966529297363, 13.739121051620486, 25.79749195774758, 26.091077827250047]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.118025499174135, -2.4764928580563965, -1.9420628867376506, -1.4621589667952093, -1.1046102168294851]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.7801267903726057, -4.485150863601746, -2.7326596569491244, -1.891225859987685, -1.1046102168294851]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.7397757456043341, -2.0240086792371446, -1.7107876482515252, -1.3963114519935336, -1.3405581091856706]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.3488716222587147, -2.789123060911268, -2.275024724043084, -1.506524729192524, -1.3405581091856706]}}