{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:32:19.923171", "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": "2022-Sep-18_to_2022-Sep-25_290.0_10.0"}, "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": 2022090000650}, "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": "September 18 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 25 2022"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 8}, "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": 54396.24295865159}, "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": ["Aruba", "Venezuela"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Caribbean", "N.South-America"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["South 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": ["Caribbean Sea"]}, "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": 10.0}, "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": 290.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "290.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 288.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 290.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 9.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 13.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-09-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-72.03, 11.97], [-72.25, 12.5], [-72.03, 13.03], [-71.5, 13.25], [-71.25, 13.15], [-71.0, 13.25], [-70.47, 13.03], [-70.32, 12.68], [-69.97, 12.53], [-69.75, 12.0], [-69.97, 11.47], [-70.5, 11.25], [-71.03, 11.47], [-71.18, 11.82], [-71.25, 11.85], [-71.5, 11.75], [-72.03, 11.97]]]]}, "2022-09-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-72.15, 13.25], [-72.25, 13.5], [-72.03, 14.03], [-71.5, 14.25], [-71.25, 14.15], [-71.0, 14.25], [-70.75, 14.15], [-70.5, 14.25], [-69.97, 14.03], [-69.75, 13.5], [-69.85, 13.25], [-69.82, 13.18], [-69.47, 13.03], [-69.25, 12.5], [-69.35, 12.25], [-69.25, 12.0], [-69.46, 11.5], [-69.25, 11.0], [-69.35, 10.75], [-69.25, 10.5], [-69.35, 10.25], [-69.25, 10.0], [-69.47, 9.47], [-70.0, 9.25], [-70.53, 9.47], [-70.75, 10.0], [-70.65, 10.25], [-70.75, 10.5], [-70.65, 10.75], [-70.75, 11.0], [-70.62, 11.3], [-71.03, 11.47], [-71.18, 11.82], [-71.25, 11.85], [-71.5, 11.75], [-72.03, 11.97], [-72.25, 12.5], [-72.15, 12.75], [-72.25, 13.0], [-72.15, 13.25]]]]}, "2022-09-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-72.15, 13.25], [-72.25, 13.5], [-72.03, 14.03], [-71.5, 14.25], [-71.25, 14.15], [-71.0, 14.25], [-70.75, 14.15], [-70.5, 14.25], [-69.97, 14.03], [-69.75, 13.5], [-69.85, 13.25], [-69.82, 13.18], [-69.47, 13.03], [-69.25, 12.5], [-69.35, 12.25], [-69.25, 12.0], [-69.46, 11.5], [-69.25, 11.0], [-69.35, 10.75], [-69.25, 10.5], [-69.35, 10.25], [-69.25, 10.0], [-69.47, 9.47], [-70.0, 9.25], [-70.53, 9.47], [-70.75, 10.0], [-70.65, 10.25], [-70.75, 10.5], [-70.65, 10.75], [-70.75, 11.0], [-70.62, 11.3], [-71.03, 11.47], [-71.18, 11.82], [-71.25, 11.85], [-71.5, 11.75], [-72.03, 11.97], [-72.25, 12.5], [-72.15, 12.75], [-72.25, 13.0], [-72.15, 13.25]]]]}, "2022-09-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-72.15, 13.25], [-72.25, 13.5], [-72.03, 14.03], [-71.5, 14.25], [-71.25, 14.15], [-71.0, 14.25], [-70.75, 14.15], [-70.5, 14.25], [-69.97, 14.03], [-69.75, 13.5], [-69.85, 13.25], [-69.82, 13.18], [-69.47, 13.03], [-69.25, 12.5], [-69.35, 12.25], [-69.25, 12.0], [-69.46, 11.5], [-69.25, 11.0], [-69.35, 10.75], [-69.25, 10.5], [-69.35, 10.25], [-69.25, 10.0], [-69.47, 9.47], [-70.0, 9.25], [-70.53, 9.47], [-70.68, 9.82], [-71.03, 9.97], [-71.25, 10.5], [-71.04, 11.0], [-71.25, 11.5], [-71.15, 11.75], [-71.2, 11.88], [-71.5, 11.75], [-72.03, 11.97], [-72.25, 12.5], [-72.15, 12.75], [-72.25, 13.0], [-72.15, 13.25]]]]}, "2022-09-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-71.15, 12.25], [-71.25, 12.5], [-71.03, 13.03], [-70.5, 13.25], [-70.25, 13.15], [-70.0, 13.25], [-69.47, 13.03], [-69.25, 12.5], [-69.35, 12.25], [-69.25, 12.0], [-69.46, 11.5], [-69.32, 11.18], [-68.97, 11.03], [-68.75, 10.5], [-68.97, 9.97], [-69.32, 9.82], [-69.47, 9.47], [-70.0, 9.25], [-70.53, 9.47], [-70.68, 9.82], [-71.03, 9.97], [-71.25, 10.5], [-71.04, 11.0], [-71.25, 11.5], [-71.15, 11.75], [-71.25, 12.0], [-71.15, 12.25]]]]}, "2022-09-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-71.15, 12.25], [-71.25, 12.5], [-71.03, 13.03], [-70.5, 13.25], [-70.25, 13.15], [-70.0, 13.25], [-69.47, 13.03], [-69.25, 12.5], [-69.35, 12.25], [-69.25, 12.0], [-69.46, 11.5], [-69.32, 11.18], [-68.97, 11.03], [-68.75, 10.5], [-68.97, 9.97], [-69.32, 9.82], [-69.47, 9.47], [-70.0, 9.25], [-70.53, 9.47], [-70.68, 9.82], [-71.03, 9.97], [-71.25, 10.5], [-71.04, 11.0], [-71.25, 11.5], [-71.15, 11.75], [-71.25, 12.0], [-71.15, 12.25]]]]}, "2022-09-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-71.25, 10.5], [-71.03, 11.03], [-70.5, 11.25], [-70.25, 11.15], [-70.0, 11.25], [-69.75, 11.15], [-69.5, 11.25], [-68.97, 11.03], [-68.75, 10.5], [-68.97, 9.97], [-69.32, 9.82], [-69.47, 9.47], [-70.0, 9.25], [-70.53, 9.47], [-70.68, 9.82], [-71.03, 9.97], [-71.25, 10.5]]]]}, "2022-09-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-71.25, 10.5], [-71.03, 11.03], [-70.5, 11.25], [-70.25, 11.15], [-70.0, 11.25], [-69.47, 11.03], [-69.25, 10.5], [-69.35, 10.25], [-69.25, 10.0], [-69.47, 9.47], [-70.0, 9.25], [-70.53, 9.47], [-70.68, 9.82], [-71.03, 9.97], [-71.25, 10.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -3.314437171816337}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.532196194666892}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.993105054439468, 26.417902002191113, 26.564108789301144, 26.44949229502481, 25.401770547444585, 25.463679396984844, 24.451340696209854, 24.251135816228384]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.86463861206272, 23.471981399720335, 24.459730480290887, 24.167741498550015, 23.318474888066874, 23.395963015491873, 24.182193973317283, 24.05424466280607]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-0.8011955949183592, -1.3983944646567086, -1.2480418314133923, -1.278232447900642, -2.028426486047806, -1.9488501961979352, -1.9567528897476762, -2.0984273403396023]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-0.9370526960642565, -3.314437171816337, -2.5533458994581224, -2.307311984522414, -3.226554154904761, -3.0114458955594614, -2.2848432659351374, -2.4080965957272724]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.370567901946461, -1.6684819736621888, -1.5851654197648972, -1.531976927427745, -1.8389537446876958, -1.8066219898086302, -1.3915921886469396, -1.4193478048183337]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.5070834053946964, -2.309922687167846, -1.8155551557842045, -1.8395165510377744, -2.274599322693657, -2.261327601169207, -1.5632552467394831, -1.6954700656511927]}}