{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:23:03.095995", "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-29_to_2022-Oct-02_287.0_18.0"}, "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": 2022090001061}, "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 29 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 02 2022"}, "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": 50058.437602726844}, "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": ["Dominican Republic"]}, "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": 18.0}, "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": 287.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "287.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 285.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 289.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 17.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 18.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-73.5, 18.75], [-73.25, 18.65], [-73.0, 18.75], [-72.75, 18.65], [-72.5, 18.75], [-72.25, 18.65], [-72.0, 18.75], [-71.75, 18.65], [-71.5, 18.75], [-71.25, 18.65], [-71.0, 18.75], [-70.75, 18.65], [-70.5, 18.75], [-69.97, 18.53], [-69.75, 18.0], [-69.97, 17.47], [-70.32, 17.32], [-70.47, 16.97], [-70.82, 16.82], [-70.97, 16.47], [-71.5, 16.25], [-72.03, 16.47], [-72.18, 16.82], [-72.25, 16.85], [-72.5, 16.75], [-72.75, 16.85], [-73.0, 16.75], [-73.25, 16.85], [-73.5, 16.75], [-73.75, 16.85], [-74.0, 16.75], [-74.25, 16.85], [-74.5, 16.75], [-75.03, 16.97], [-75.25, 17.5], [-75.03, 18.03], [-74.68, 18.18], [-74.53, 18.53], [-74.0, 18.75], [-73.75, 18.65], [-73.5, 18.75]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Caribbean"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-09-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-72.52999999999997, 18.53], [-72.0, 18.75], [-71.47000000000003, 18.53], [-71.25, 18.0], [-71.47000000000003, 17.47], [-72.0, 17.25], [-72.52999999999997, 17.47], [-72.75, 18.0], [-72.52999999999997, 18.53]]]]}, "2022-09-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-74.52999999999997, 18.53], [-74.0, 18.75], [-73.75, 18.65], [-73.5, 18.75], [-73.25, 18.65], [-73.0, 18.75], [-72.75, 18.65], [-72.5, 18.75], [-72.25, 18.65], [-72.0, 18.75], [-71.75, 18.65], [-71.5, 18.75], [-71.25, 18.65], [-71.0, 18.75], [-70.75, 18.65], [-70.5, 18.75], [-69.97000000000003, 18.53], [-69.75, 18.0], [-69.97000000000003, 17.47], [-70.32, 17.32], [-70.47000000000003, 16.97], [-70.82, 16.82], [-70.97000000000003, 16.47], [-71.5, 16.25], [-72.02999999999997, 16.47], [-72.18, 16.82], [-72.25, 16.85], [-72.5, 16.75], [-72.75, 16.85], [-73.0, 16.75], [-73.25, 16.85], [-73.5, 16.75], [-73.75, 16.85], [-74.0, 16.75], [-74.25, 16.85], [-74.5, 16.75], [-75.02999999999997, 16.97], [-75.25, 17.5], [-75.02999999999997, 18.03], [-74.68, 18.18], [-74.52999999999997, 18.53]]]]}, "2022-10-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-74.52999999999997, 18.53], [-74.0, 18.75], [-73.75, 18.65], [-73.5, 18.75], [-73.25, 18.65], [-73.0, 18.75], [-72.75, 18.65], [-72.5, 18.75], [-72.25, 18.65], [-72.0, 18.75], [-71.75, 18.65], [-71.5, 18.75], [-71.25, 18.65], [-71.0, 18.75], [-70.75, 18.65], [-70.5, 18.75], [-69.97000000000003, 18.53], [-69.75, 18.0], [-69.97000000000003, 17.47], [-70.32, 17.32], [-70.47000000000003, 16.97], [-70.82, 16.82], [-70.97000000000003, 16.47], [-71.5, 16.25], [-72.02999999999997, 16.47], [-72.18, 16.82], [-72.25, 16.85], [-72.5, 16.75], [-72.75, 16.85], [-73.0, 16.75], [-73.25, 16.85], [-73.5, 16.75], [-73.75, 16.85], [-74.0, 16.75], [-74.25, 16.85], [-74.5, 16.75], [-75.02999999999997, 16.97], [-75.25, 17.5], [-75.02999999999997, 18.03], [-74.68, 18.18], [-74.52999999999997, 18.53]]]]}, "2022-10-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-74.52999999999997, 18.53], [-74.0, 18.75], [-73.75, 18.65], [-73.5, 18.75], [-73.25, 18.65], [-73.0, 18.75], [-72.75, 18.65], [-72.5, 18.75], [-72.0, 18.54], [-71.5, 18.75], [-71.25, 18.65], [-71.0, 18.75], [-70.75, 18.65], [-70.5, 18.75], [-69.97000000000003, 18.53], [-69.75, 18.0], [-69.97000000000003, 17.47], [-70.32, 17.32], [-70.47000000000003, 16.97], [-70.82, 16.82], [-70.97000000000003, 16.47], [-71.5, 16.25], [-72.02999999999997, 16.47], [-72.18, 16.82], [-72.25, 16.85], [-72.5, 16.75], [-72.75, 16.85], [-73.0, 16.75], [-73.25, 16.85], [-73.5, 16.75], [-73.75, 16.85], [-74.0, 16.75], [-74.25, 16.85], [-74.5, 16.75], [-75.02999999999997, 16.97], [-75.25, 17.5], [-75.02999999999997, 18.03], [-74.68, 18.18], [-74.52999999999997, 18.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -1.7960949464823557}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.2635033589028608}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.645238613757954, 26.017946453715012, 25.98720552885527, 26.21991305185577]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.645238613757954, 23.742904062308867, 23.458382635870578, 23.319898977671585]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.092217984270576, -1.333203917836553, -1.361889119038247, -1.0956169808064828]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.092217984270576, -1.7960949464823557, -1.5231209649027733, -1.3721526834054885]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.6180902814033777, -1.9545700706006712, -2.0932278328805634, -1.7365878808257234]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.6180902814033777, -2.718362874778521, -2.338117595800682, -2.1964162897771624]}}