{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:51:41.158574", "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": "2023-Mar-09_to_2023-Mar-15_285.0_3.0"}, "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": 2023030000342}, "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": "March 09 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 15 2023"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 7}, "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": 52367.30100011844}, "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": []}, "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": 3.0}, "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": 285.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "285.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 284.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 287.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 3.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 6.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-75.0, 2.25], [-75.25, 2.35], [-75.5, 2.25], [-76.03, 2.47], [-76.25, 3.0], [-76.03, 3.53], [-75.68, 3.68], [-75.65, 3.75], [-75.75, 4.0], [-75.65, 4.25], [-75.75, 4.5], [-75.65, 4.75], [-75.68, 4.82], [-75.75, 4.85], [-76.0, 4.75], [-76.53, 4.97], [-76.75, 5.5], [-76.65, 5.75], [-76.75, 6.0], [-76.53, 6.53], [-76.0, 6.75], [-75.75, 6.65], [-75.5, 6.75], [-74.97, 6.53], [-74.75, 6.0], [-74.85, 5.75], [-74.82, 5.68], [-74.75, 5.65], [-74.5, 5.75], [-74.25, 5.65], [-74.0, 5.75], [-73.5, 5.54], [-73.0, 5.75], [-72.75, 5.65], [-72.5, 5.75], [-71.97, 5.53], [-71.75, 5.0], [-71.97, 4.47], [-72.32, 4.32], [-72.47, 3.97], [-73.0, 3.75], [-73.25, 3.85], [-73.5, 3.75], [-74.0, 3.96], [-74.32, 3.82], [-74.35, 3.75], [-74.25, 3.5], [-74.35, 3.25], [-74.25, 3.0], [-74.47, 2.47], [-75.0, 2.25]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.W.South-America", "N.South-America"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2023-03-09T11:30:00.000000000": {"type": 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