{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:27:38.504634", "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": "2021-Oct-22_to_2021-Oct-26_260.0_17.0"}, "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": 2021100000730}, "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 22 2021"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 26 2021"}, "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": 67877.55931995901}, "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": ["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": 17.0}, "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": 260.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "260.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 257.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 262.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 15.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 19.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2021-10-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-101.53, 16.97], [-101.75, 17.5], [-101.53, 18.03], [-101.0, 18.25], [-100.5, 18.04], [-100.0, 18.25], [-99.75, 18.15], [-99.5, 18.25], [-98.97, 18.03], [-98.82, 17.68], [-98.75, 17.65], [-98.5, 17.75], [-97.97, 17.53], [-97.82, 17.18], [-97.47, 17.03], [-97.25, 16.5], [-97.47, 15.97], [-98.0, 15.75], [-98.25, 15.85], [-98.5, 15.75], [-99.0, 15.96], [-99.5, 15.75], [-99.75, 15.85], [-100.0, 15.75], [-100.53, 15.97], [-100.75, 16.5], [-100.65, 16.75], [-100.7, 16.88], [-101.0, 16.75], [-101.53, 16.97]]]]}, "2021-10-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-102.53, 17.97], [-102.75, 18.5], [-102.53, 19.03], [-102.0, 19.25], [-101.7, 19.12], [-101.53, 19.53], [-101.0, 19.75], [-100.47, 19.53], [-100.25, 19.0], [-100.35, 18.75], [-100.32, 18.68], [-100.25, 18.65], [-100.0, 18.75], [-99.47, 18.53], [-99.32, 18.18], [-98.97, 18.03], [-98.82, 17.68], [-98.75, 17.65], [-98.5, 17.75], [-97.97, 17.53], [-97.82, 17.18], [-97.47, 17.03], [-97.25, 16.5], [-97.47, 15.97], [-98.0, 15.75], [-98.25, 15.85], [-98.5, 15.75], [-98.75, 15.85], [-98.82, 15.82], [-98.97, 15.47], [-99.5, 15.25], [-99.75, 15.35], [-100.0, 15.25], [-100.53, 15.47], [-100.68, 15.82], [-101.03, 15.97], [-101.25, 16.5], [-101.12, 16.8], [-101.53, 16.97], [-101.75, 17.5], [-101.65, 17.75], [-101.7, 17.88], [-102.0, 17.75], [-102.53, 17.97]]]]}, "2021-10-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-102.53, 17.97], [-102.75, 18.5], [-102.53, 19.03], [-102.0, 19.25], [-101.75, 19.15], [-101.68, 19.18], [-101.53, 19.53], [-101.0, 19.75], [-100.47, 19.53], [-100.25, 19.0], [-100.35, 18.75], [-100.32, 18.68], [-100.25, 18.65], [-100.0, 18.75], [-99.47, 18.53], [-99.32, 18.18], [-98.97, 18.03], [-98.82, 17.68], [-98.75, 17.65], [-98.5, 17.75], [-97.97, 17.53], [-97.82, 17.18], [-97.47, 17.03], [-97.25, 16.5], [-97.47, 15.97], [-98.0, 15.75], [-98.25, 15.85], [-98.5, 15.75], [-98.75, 15.85], [-98.82, 15.82], [-98.97, 15.47], [-99.5, 15.25], [-99.75, 15.35], [-100.0, 15.25], [-100.53, 15.47], [-100.68, 15.82], [-101.03, 15.97], [-101.25, 16.5], [-101.12, 16.8], [-101.53, 16.97], [-101.75, 17.5], [-101.65, 17.75], [-101.68, 17.82], [-101.75, 17.85], [-102.0, 17.75], [-102.53, 17.97]]]]}, "2021-10-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-102.53, 17.97], [-102.75, 18.5], [-102.53, 19.03], [-102.0, 19.25], [-101.75, 19.15], [-101.68, 19.18], [-101.53, 19.53], [-101.0, 19.75], [-100.47, 19.53], [-100.25, 19.0], [-100.35, 18.75], [-100.32, 18.68], [-100.25, 18.65], [-100.0, 18.75], [-99.47, 18.53], [-99.32, 18.18], [-98.97, 18.03], [-98.82, 17.68], [-98.47, 17.53], [-98.32, 17.18], [-97.97, 17.03], [-97.75, 16.5], [-97.97, 15.97], [-98.5, 15.75], [-98.75, 15.85], [-98.82, 15.82], [-98.97, 15.47], [-99.5, 15.25], [-99.75, 15.35], [-100.0, 15.25], [-100.53, 15.47], [-100.68, 15.82], [-101.03, 15.97], [-101.25, 16.5], [-101.12, 16.8], [-101.53, 16.97], [-101.75, 17.5], [-101.65, 17.75], [-101.68, 17.82], [-101.75, 17.85], [-102.0, 17.75], [-102.53, 17.97]]]]}, 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-2.1629128446551853, -1.906655342518157]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.000380981470208, -3.200541060446993, -3.379758287113383, -3.512199411861498, -2.630402916360468]}}