{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-03-19 18:19:53.654979", "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": "2020-Dec-26_to_2020-Dec-29_278.5_14.0"}, "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": 2020120001013}, "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": "December 26 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 29 2020"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "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": 105254.35331992414}, "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": ["Colombia"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["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": 14.0}, "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": 278.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "278.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 277.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 280.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 11.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 15.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "Polygon", "coordinates": [[[-83.177, 13.177], [-83.146, 13.25], [-83.25, 13.5], [-83.03, 14.03], [-82.677, 14.177], [-82.646, 14.25], [-82.75, 14.5], [-82.53, 15.03], [-82.177, 15.177], [-82.03, 15.53], [-81.677, 15.677], [-81.53, 16.03], [-81.0, 16.25], [-80.75, 16.146], [-80.5, 16.25], [-79.97, 16.03], [-79.75, 15.5], [-79.854, 15.25], [-79.823, 15.177], [-79.47, 15.03], [-79.25, 14.5], [-79.47, 13.97], [-79.823, 13.823], [-79.854, 13.75], [-79.75, 13.5], [-79.97, 12.97], [-80.5, 12.75], [-80.75, 12.854], [-80.823, 12.823], [-80.854, 12.75], [-80.75, 12.5], [-80.854, 12.25], [-80.823, 12.177], [-80.47, 12.03], [-80.323, 11.677], [-79.97, 11.53], [-79.75, 11.0], [-79.97, 10.47], [-80.5, 10.25], [-81.03, 10.47], [-81.177, 10.823], [-81.25, 10.854], [-81.5, 10.75], [-81.75, 10.854], [-82.0, 10.75], [-82.25, 10.854], [-82.5, 10.75], [-83.03, 10.97], [-83.177, 11.323], [-83.53, 11.47], [-83.75, 12.0], [-83.646, 12.25], [-83.75, 12.5], [-83.53, 13.03], [-83.177, 13.177]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.Central-America"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2020-12-26T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[-83.14644660940672, 13.25], [-83.25, 13.5], [-83.03033008588989, 14.030330085889911], [-82.67677669529661, 14.176776695296637], [-82.64644660940672, 14.25], [-82.75, 14.5], [-82.53033008588989, 15.030330085889911], [-82.17677669529661, 15.176776695296637], [-82.03033008588989, 15.530330085889911], [-81.67677669529661, 15.676776695296637], [-81.53033008588989, 16.03033008588991], [-81.0, 16.25], [-80.46966991411011, 16.03033008588991], [-80.25, 15.5], [-80.45710678118655, 15.0], [-80.25, 14.5], [-80.35355339059328, 14.25], [-80.25, 14.0], [-80.46966991411011, 13.469669914110089], [-80.82322330470339, 13.323223304703363], [-80.96966991411011, 12.969669914110089], [-81.5, 12.75], [-81.75, 12.853553390593278], [-81.82322330470339, 12.823223304703363], [-81.96966991411011, 12.469669914110089], [-82.5, 12.25], 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25.147392059573463]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [25.147787176951454, 24.406733136904847, 24.652332780178767, 24.754787856054634]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.0515077304202312, -1.5142766451164837, -1.15872733185499, -1.0783718159480584]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.1318422425699168, -1.7470118687499507, -1.332397272668004, -1.3519856512136244]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.5291684394451561, -2.2058559385833076, -1.731451615015529, -1.6079568280600225]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m 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