{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:04:44.707270", "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-Feb-25_to_2016-Feb-27_259.5_21.5"}, "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": 2016020000647}, "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": "February 25 2016"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 27 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": 54427.41238458161}, "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"]}, "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": []}, "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": 21.5}, "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": 259.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "259.5\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": 261.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 20.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 23.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2016-02-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-101.65, 22.25], [-101.75, 22.5], [-101.65, 22.75], [-101.75, 23.0], [-101.53, 23.53], [-101.18, 23.68], [-101.03, 24.03], [-100.5, 24.25], [-99.97, 24.03], [-99.82, 23.68], [-99.75, 23.65], [-99.5, 23.75], [-98.97, 23.53], [-98.75, 23.0], [-98.85, 22.75], [-98.75, 22.5], [-98.97, 21.97], [-99.32, 21.82], [-99.35, 21.75], [-99.32, 21.68], [-98.97, 21.53], [-98.82, 21.18], [-98.75, 21.15], [-98.5, 21.25], [-97.97, 21.03], [-97.75, 20.5], [-97.97, 19.97], [-98.5, 19.75], [-98.75, 19.85], [-99.0, 19.75], [-99.53, 19.97], [-99.68, 20.32], [-99.75, 20.35], [-100.0, 20.25], [-100.53, 20.47], [-100.68, 20.82], [-100.75, 20.85], [-101.0, 20.75], [-101.53, 20.97], [-101.75, 21.5], [-101.65, 21.75], [-101.75, 22.0], [-101.65, 22.25]]]]}, "2016-02-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-101.65, 22.25], [-101.75, 22.5], [-101.65, 22.75], [-101.75, 23.0], [-101.53, 23.53], [-101.18, 23.68], [-101.03, 24.03], [-100.5, 24.25], [-99.97, 24.03], [-99.82, 23.68], [-99.75, 23.65], [-99.5, 23.75], [-98.97, 23.53], [-98.75, 23.0], [-98.85, 22.75], [-98.75, 22.5], [-98.97, 21.97], [-99.32, 21.82], [-99.35, 21.75], [-99.32, 21.68], [-98.97, 21.53], [-98.82, 21.18], [-98.75, 21.15], [-98.5, 21.25], [-97.97, 21.03], [-97.75, 20.5], [-97.97, 19.97], [-98.5, 19.75], [-98.75, 19.85], [-99.0, 19.75], [-99.53, 19.97], [-99.68, 20.32], [-99.75, 20.35], [-100.0, 20.25], [-100.53, 20.47], [-100.68, 20.82], [-100.75, 20.85], [-101.0, 20.75], [-101.53, 20.97], [-101.75, 21.5], [-101.65, 21.75], [-101.75, 22.0], [-101.65, 22.25]]]]}, "2016-02-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-101.65, 22.25], [-101.75, 22.5], [-101.65, 22.75], [-101.75, 23.0], [-101.53, 23.53], [-101.18, 23.68], [-101.03, 24.03], [-100.5, 24.25], [-99.97, 24.03], [-99.82, 23.68], [-99.75, 23.65], [-99.5, 23.75], [-98.97, 23.53], [-98.75, 23.0], [-98.85, 22.75], [-98.75, 22.5], [-98.97, 21.97], [-99.32, 21.82], [-99.35, 21.75], [-99.32, 21.68], [-98.97, 21.53], [-98.82, 21.18], [-98.75, 21.15], [-98.5, 21.25], [-97.97, 21.03], [-97.75, 20.5], [-97.97, 19.97], [-98.5, 19.75], [-98.75, 19.85], [-99.0, 19.75], [-99.53, 19.97], [-99.68, 20.32], [-99.75, 20.35], [-100.0, 20.25], [-100.53, 20.47], [-100.68, 20.82], [-100.75, 20.85], [-101.0, 20.75], [-101.53, 20.97], [-101.75, 21.5], [-101.65, 21.75], [-101.75, 22.0], [-101.65, 22.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -6.655013733046019}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -5.379229538287058}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [10.73319297352117, 11.797818454742526, 11.371945832411143]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [9.252132927277216, 9.964697492435675, 9.628491671532515]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-5.937938004507896, -4.902736959389059, -5.29701365096422]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-6.655013733046019, -6.111615547675228, -6.033432264840542]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-2.1218116779032274, -1.691504153458908, -1.823020526465551]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.3361339564651793, -2.011038293016786, -2.158390326029623]}}