{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:23:39.521469", "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-Oct-28_to_2022-Nov-01_285.0_-43.0"}, "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": 2022100001019}, "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 28 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 01 2022"}, "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": 335895.07003821415}, "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": ["Chile"]}, "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": ["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": -43.0}, "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": 280.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 286.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -47.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -38.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-74.35, -47.25], [-74.25, -47.5], [-74.47, -48.03], [-75.0, -48.25], [-75.25, -48.15], [-75.5, -48.25], [-76.03, -48.03], [-76.25, -47.5], [-76.15, -47.25], [-76.18, -47.18], [-76.25, -47.15], [-76.5, -47.25], [-77.03, -47.03], [-77.18, -46.68], [-77.53, -46.53], [-77.68, -46.18], [-78.03, -46.03], [-78.18, -45.68], [-78.53, -45.53], [-78.68, -45.18], [-78.75, -45.15], [-79.0, -45.25], [-79.53, -45.03], [-79.68, -44.68], [-80.03, -44.53], [-80.18, -44.18], [-80.53, -44.03], [-80.75, -43.5], [-80.65, -43.25], [-80.75, -43.0], [-80.65, -42.75], [-80.75, -42.5], [-80.65, -42.25], [-80.75, -42.0], [-80.65, -41.75], [-80.75, -41.5], [-80.53, -40.97], [-80.18, -40.82], [-80.15, -40.75], [-80.25, -40.5], [-80.03, -39.97], [-79.5, -39.75], [-79.25, -39.85], [-79.18, -39.82], [-79.15, -39.75], [-79.25, -39.5], [-79.03, -38.97], [-78.62, -38.8], [-78.75, -38.5], [-78.53, -37.97], [-78.0, -37.75], [-77.47, -37.97], [-77.32, -38.32], [-77.25, -38.35], [-77.0, -38.25], [-76.75, -38.35], [-76.5, -38.25], [-76.25, -38.35], [-76.0, -38.25], [-75.47, -38.47], [-75.25, -39.0], [-75.35, -39.25], [-75.32, -39.32], [-74.97, -39.47], [-74.82, -39.82], [-74.75, -39.85], [-74.5, -39.75], [-73.97, -39.97], [-73.75, -40.5], [-73.85, -40.75], [-73.75, -41.0], [-73.85, -41.25], [-73.75, -41.5], [-73.85, -41.75], [-73.75, -42.0], [-73.85, -42.25], [-73.8, -42.38], [-73.5, -42.25], [-72.97, -42.47], [-72.75, -43.0], [-72.85, -43.25], [-72.75, -43.5], [-72.97, -44.03], [-73.5, -44.25], [-73.75, -44.15], [-73.82, -44.18], [-73.85, -44.25], [-73.75, -44.5], [-73.85, -44.75], [-73.75, -45.0], [-73.97, -45.53], [-74.32, -45.68], [-74.35, -45.75], [-74.25, -46.0], [-74.46, -46.5], [-74.25, -47.0], [-74.35, -47.25]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.W.South-America", "S.South-America", "S.Pacific-Ocean"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-10-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-76.25, -47.0], [-76.02999999999997, -46.47], [-75.5, -46.25], [-75.25, -46.35], [-75.0, -46.25], [-74.47000000000003, -46.47], [-74.25, -47.0], [-74.35000000000002, -47.25], [-74.25, -47.5], [-74.47000000000003, -48.03], [-75.0, -48.25], [-75.25, -48.15], [-75.5, -48.25], [-76.02999999999997, -48.03], [-76.25, -47.5], [-76.14999999999998, -47.25], [-76.25, -47.0]]]]}, "2022-10-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-80.75, -43.0], [-80.64999999999998, -42.75], [-80.75, -42.5], [-80.52999999999997, -41.97], [-80.0, -41.75], [-79.75, -41.85], [-79.5, -41.75], [-79.25, -41.85], [-79.18, -41.82], [-79.02999999999997, -41.47], [-78.5, -41.25], [-78.25, -41.35], [-78.0, -41.25], [-77.75, -41.35], [-77.5, -41.25], [-77.25, -41.35], [-77.0, -41.25], [-76.75, -41.35], [-76.68, -41.32], [-76.52999999999997, -40.97], [-76.0, -40.75], [-75.75, -40.85], [-75.5, -40.75], [-75.25, -40.85], [-75.0, -40.75], [-74.75, -40.85], [-74.5, -40.75], [-73.97000000000003, -40.97], [-73.75, -41.5], [-73.85000000000002, -41.75], [-73.75, -42.0], [-73.85000000000002, -42.25], [-73.80000000000001, -42.38], [-73.5, -42.25], [-72.97000000000003, -42.47], [-72.75, -43.0], [-72.85000000000002, -43.25], [-72.75, -43.5], [-72.97000000000003, -44.03], [-73.5, -44.25], [-73.75, -44.15], [-73.82, -44.18], [-73.85000000000002, -44.25], [-73.75, -44.5], [-73.85000000000002, -44.75], [-73.75, -45.0], [-73.97000000000003, -45.53], [-74.32, -45.68], [-74.35000000000002, -45.75], [-74.25, -46.0], [-74.45999999999998, -46.5], [-74.25, -47.0], [-74.35000000000002, -47.25], [-74.25, -47.5], [-74.47000000000003, -48.03], [-75.0, -48.25], [-75.25, -48.15], [-75.5, -48.25], [-76.02999999999997, -48.03], [-76.25, -47.5], [-76.14999999999998, -47.25], [-76.18, -47.18], [-76.25, -47.15], [-76.5, -47.25], [-77.02999999999997, -47.03], [-77.18, -46.68], [-77.52999999999997, -46.53], [-77.68, -46.18], [-78.02999999999997, -46.03], [-78.18, -45.68], [-78.52999999999997, -45.53], [-78.68, -45.18], [-78.75, -45.15], [-79.0, -45.25], [-79.52999999999997, -45.03], [-79.68, -44.68], [-80.02999999999997, -44.53], [-80.18, -44.18], [-80.52999999999997, -44.03], [-80.75, -43.5], [-80.64999999999998, -43.25], [-80.75, -43.0]]]]}, "2022-10-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-80.75, -43.0], [-80.64999999999998, -42.75], [-80.75, -42.5], [-80.64999999999998, -42.25], [-80.75, -42.0], [-80.64999999999998, -41.75], [-80.75, -41.5], [-80.52999999999997, -40.97], [-80.18, -40.82], [-80.14999999999998, -40.75], [-80.25, -40.5], [-80.02999999999997, -39.97], [-79.5, -39.75], [-79.25, -39.85], [-79.18, -39.82], [-79.14999999999998, -39.75], [-79.25, -39.5], [-79.02999999999997, -38.97], [-78.62, -38.8], [-78.75, -38.5], [-78.52999999999997, -37.97], [-78.0, -37.75], [-77.47000000000003, -37.97], [-77.32, -38.32], [-77.25, -38.35], [-77.0, -38.25], [-76.75, -38.35], [-76.5, -38.25], [-76.25, -38.35], [-76.0, -38.25], [-75.47000000000003, -38.47], [-75.25, -39.0], [-75.35000000000002, -39.25], [-75.32, -39.32], [-74.97000000000003, -39.47], [-74.82, -39.82], [-74.75, -39.85], [-74.5, -39.75], [-73.97000000000003, -39.97], [-73.75, -40.5], [-73.85000000000002, -40.75], [-73.75, -41.0], [-73.85000000000002, -41.25], [-73.75, -41.5], [-73.85000000000002, -41.75], [-73.75, -42.0], [-73.85000000000002, -42.25], [-73.80000000000001, -42.38], [-73.5, -42.25], [-72.97000000000003, -42.47], [-72.75, -43.0], [-72.85000000000002, -43.25], [-72.75, -43.5], [-72.97000000000003, -44.03], [-73.5, -44.25], [-73.75, -44.15], [-73.82, -44.18], [-73.85000000000002, -44.25], [-73.75, -44.5], [-73.85000000000002, -44.75], [-73.75, -45.0], [-73.97000000000003, -45.53], [-74.32, -45.68], [-74.35000000000002, -45.75], [-74.25, -46.0], [-74.45999999999998, -46.5], [-74.25, -47.0], [-74.35000000000002, -47.25], [-74.25, -47.5], [-74.47000000000003, -48.03], [-75.0, -48.25], [-75.25, -48.15], [-75.5, -48.25], [-76.02999999999997, -48.03], [-76.25, -47.5], [-76.14999999999998, -47.25], [-76.18, -47.18], [-76.25, -47.15], [-76.5, -47.25], [-77.02999999999997, -47.03], [-77.18, -46.68], [-77.52999999999997, -46.53], [-77.68, -46.18], [-78.02999999999997, -46.03], [-78.18, -45.68], [-78.52999999999997, -45.53], [-78.68, -45.18], [-78.75, -45.15], [-79.0, -45.25], [-79.52999999999997, -45.03], [-79.68, -44.68], [-80.02999999999997, -44.53], [-80.18, -44.18], [-80.52999999999997, -44.03], [-80.75, -43.5], [-80.64999999999998, -43.25], [-80.75, -43.0]]]]}, "2022-10-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-80.75, -43.0], [-80.64999999999998, -42.75], [-80.75, -42.5], [-80.64999999999998, -42.25], [-80.75, -42.0], [-80.64999999999998, -41.75], [-80.75, -41.5], [-80.52999999999997, -40.97], [-80.18, -40.82], [-80.14999999999998, -40.75], [-80.25, -40.5], [-80.02999999999997, -39.97], [-79.5, -39.75], [-79.25, -39.85], [-79.18, -39.82], [-79.14999999999998, -39.75], [-79.25, -39.5], [-79.02999999999997, -38.97], [-78.62, -38.8], [-78.75, -38.5], [-78.52999999999997, -37.97], [-78.0, -37.75], [-77.47000000000003, -37.97], [-77.32, -38.32], [-77.25, -38.35], [-77.0, -38.25], [-76.75, -38.35], [-76.5, -38.25], [-76.25, -38.35], [-76.0, -38.25], [-75.47000000000003, -38.47], [-75.25, -39.0], [-75.35000000000002, -39.25], [-75.32, -39.32], [-74.97000000000003, -39.47], [-74.82, -39.82], [-74.75, -39.85], [-74.5, -39.75], [-73.97000000000003, -39.97], [-73.75, -40.5], [-73.85000000000002, -40.75], [-73.75, -41.0], [-73.85000000000002, -41.25], [-73.75, -41.5], [-73.85000000000002, -41.75], [-73.75, -42.0], [-73.85000000000002, -42.25], [-73.80000000000001, -42.38], [-73.5, -42.25], [-72.97000000000003, -42.47], [-72.75, -43.0], [-72.85000000000002, -43.25], [-72.75, -43.5], [-72.97000000000003, -44.03], [-73.5, -44.25], [-73.75, -44.15], [-73.82, -44.18], [-73.85000000000002, -44.25], [-73.75, -44.5], [-73.85000000000002, -44.75], [-73.75, -45.0], [-73.97000000000003, -45.53], [-74.32, -45.68], [-74.35000000000002, -45.75], [-74.25, -46.0], [-74.47000000000003, -46.53], [-75.0, -46.75], [-75.25, -46.65], [-75.32, -46.68], [-75.47000000000003, -47.03], [-76.0, -47.25], [-76.25, -47.15], [-76.5, -47.25], [-77.02999999999997, -47.03], [-77.18, -46.68], [-77.52999999999997, -46.53], [-77.68, -46.18], [-78.02999999999997, -46.03], [-78.18, -45.68], [-78.52999999999997, -45.53], [-78.68, -45.18], [-78.75, -45.15], [-79.0, -45.25], [-79.52999999999997, -45.03], [-79.68, -44.68], [-80.02999999999997, -44.53], [-80.18, -44.18], [-80.52999999999997, -44.03], [-80.75, -43.5], [-80.64999999999998, -43.25], [-80.75, -43.0]]]]}, "2022-11-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-80.75, -41.5], [-80.52999999999997, -40.97], [-80.18, -40.82], [-80.14999999999998, -40.75], [-80.25, -40.5], [-80.02999999999997, -39.97], [-79.5, -39.75], [-79.25, -39.85], [-79.18, -39.82], [-79.14999999999998, -39.75], [-79.25, -39.5], [-79.02999999999997, -38.97], [-78.62, -38.8], [-78.75, -38.5], [-78.52999999999997, -37.97], [-78.0, -37.75], [-77.47000000000003, -37.97], [-77.32, -38.32], [-77.25, -38.35], [-77.0, -38.25], [-76.75, -38.35], [-76.5, -38.25], [-76.25, -38.35], [-76.0, -38.25], [-75.47000000000003, -38.47], [-75.25, -39.0], [-75.35000000000002, -39.25], [-75.32, -39.32], [-74.97000000000003, -39.47], [-74.82, -39.82], [-74.75, -39.85], [-74.5, -39.75], [-73.97000000000003, -39.97], [-73.75, -40.5], [-73.85000000000002, -40.75], [-73.75, -41.0], [-73.85000000000002, -41.25], [-73.75, -41.5], [-73.85000000000002, -41.75], [-73.75, -42.0], [-73.85000000000002, -42.25], [-73.75, -42.5], [-73.95999999999998, -43.0], [-73.75, -43.5], [-73.97000000000003, -44.03], [-74.32, -44.18], [-74.47000000000003, -44.53], [-75.0, -44.75], [-75.25, -44.65], [-75.5, -44.75], [-76.02999999999997, -44.53], [-76.18, -44.18], [-76.25, -44.15], [-76.5, -44.25], [-77.02999999999997, -44.03], [-77.18, -43.68], [-77.25, -43.65], [-77.5, -43.75], [-78.02999999999997, -43.53], [-78.18, -43.18], [-78.25, -43.15], [-78.5, -43.25], [-78.75, -43.15], [-79.0, -43.25], [-79.25, -43.15], [-79.5, -43.25], [-80.02999999999997, -43.03], [-80.18, -42.68], [-80.52999999999997, -42.53], [-80.75, -42.0], [-80.64999999999998, -41.75], [-80.75, -41.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -2.8020182518098977}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.705110501901058}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [6.957473950066401, 7.751894482421562, 8.726100565386844, 8.653905617168903, 9.402261678070147]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [6.842621343739381, 5.447155533598391, 6.726990526065549, 6.39847145313405, 8.811592229261748]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.6176283085315077, -2.0523770939880794, -1.5707054371871827, -1.7197786675572933, -1.5223235647988245]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.7466022603651368, -2.8020182518098977, -2.0647341822805743, -2.0616099873128633, -1.8868310818646705]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.3655331386265122, -2.1016708966519357, -1.6300251811197206, -1.8157753812748068, -1.633218109010152]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.4397071407231337, -2.5907852792456247, -2.251982399623021, -2.234585343746334, -1.9896478956468944]}}