{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:54:07.851211", "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": "2013-Aug-12_to_2013-Aug-14_286.5_-39.0"}, "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": 2013080000602}, "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": "August 12 2013"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 14 2013"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 3}, "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": 60545.456326157204}, "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"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.W.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": ["South 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": -39.0}, "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": 286.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "286.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 284.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 286.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -41.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -36.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2013-08-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-76.03, -36.97], [-75.68, -36.82], [-75.53, -36.47], [-75.18, -36.32], [-75.03, -35.97], [-74.5, -35.75], [-74.25, -35.85], [-74.0, -35.75], [-73.47, -35.97], [-73.25, -36.5], [-73.35, -36.75], [-73.25, -37.0], [-73.35, -37.25], [-73.25, -37.5], [-73.35, -37.75], [-73.32, -37.82], [-72.97, -37.97], [-72.75, -38.5], [-72.85, -38.75], [-72.75, -39.0], [-72.85, -39.25], [-72.75, -39.5], [-72.85, -39.75], [-72.75, -40.0], [-72.85, -40.25], [-72.75, -40.5], [-72.85, -40.75], [-72.75, -41.0], [-72.85, -41.25], [-72.75, -41.5], [-72.97, -42.03], [-73.5, -42.25], [-74.03, -42.03], [-74.25, -41.5], [-74.15, -41.25], [-74.25, -41.0], [-74.15, -40.75], [-74.25, -40.5], [-74.15, -40.25], [-74.18, -40.18], [-74.53, -40.03], [-74.75, -39.5], [-74.65, -39.25], [-74.68, -39.18], [-74.75, -39.15], [-75.0, -39.25], [-75.53, -39.03], [-75.68, -38.68], [-76.03, -38.53], [-76.25, -38.0], [-76.15, -37.75], [-76.25, -37.5], [-76.03, -36.97]]]]}, "2013-08-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-76.03, -36.97], [-75.68, -36.82], [-75.53, -36.47], [-75.18, -36.32], [-75.03, -35.97], [-74.5, -35.75], [-74.25, -35.85], [-74.0, -35.75], [-73.47, -35.97], [-73.25, -36.5], [-73.35, -36.75], [-73.25, -37.0], [-73.35, -37.25], [-73.25, -37.5], [-73.35, -37.75], [-73.32, -37.82], [-72.97, -37.97], [-72.75, -38.5], [-72.85, -38.75], [-72.75, -39.0], [-72.85, -39.25], [-72.75, -39.5], [-72.85, -39.75], [-72.75, -40.0], [-72.85, -40.25], [-72.75, -40.5], [-72.85, -40.75], [-72.75, -41.0], [-72.85, -41.25], [-72.75, -41.5], [-72.97, -42.03], [-73.5, -42.25], [-74.03, -42.03], [-74.25, -41.5], [-74.15, -41.25], [-74.25, -41.0], [-74.15, -40.75], [-74.25, -40.5], [-74.15, -40.25], [-74.18, -40.18], [-74.53, -40.03], [-74.75, -39.5], [-74.65, -39.25], [-74.68, -39.18], [-74.75, -39.15], [-75.0, -39.25], [-75.53, -39.03], [-75.68, -38.68], [-76.03, -38.53], [-76.25, -38.0], [-76.15, -37.75], [-76.25, -37.5], [-76.03, -36.97]]]]}, "2013-08-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-76.03, -36.97], [-75.68, -36.82], [-75.53, -36.47], [-75.18, -36.32], [-75.03, -35.97], [-74.5, -35.75], [-74.25, -35.85], [-74.0, -35.75], [-73.47, -35.97], [-73.25, -36.5], [-73.35, -36.75], [-73.25, -37.0], [-73.35, -37.25], [-73.25, -37.5], [-73.35, -37.75], [-73.32, -37.82], [-72.97, -37.97], [-72.75, -38.5], [-72.85, -38.75], [-72.75, -39.0], [-72.85, -39.25], [-72.75, -39.5], [-72.85, -39.75], [-72.75, -40.0], [-72.85, -40.25], [-72.75, -40.5], [-72.85, -40.75], [-72.75, -41.0], [-72.85, -41.25], [-72.75, -41.5], [-72.97, -42.03], [-73.5, -42.25], [-74.03, -42.03], [-74.25, -41.5], [-74.15, -41.25], [-74.25, -41.0], [-74.15, -40.75], [-74.25, -40.5], [-74.15, -40.25], [-74.18, -40.18], [-74.53, -40.03], [-74.75, -39.5], [-74.65, -39.25], [-74.68, -39.18], [-74.75, -39.15], [-75.0, -39.25], [-75.53, -39.03], [-75.68, -38.68], [-76.03, -38.53], [-76.25, -38.0], [-76.15, -37.75], [-76.25, -37.5], [-76.03, -36.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -4.050888465665423}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.997879483309153}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [8.337709615927224, 8.076343909083732, 8.364161361939523]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [2.900511692185603, 2.644595892054326, 2.381785631624382]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.9118004210461776, -2.190278930520658, -1.8915590983606239]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-3.470745017797242, -3.790859049927178, -4.050888465665423]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.6612690737307805, -1.9736882971569123, -1.6549226146756637]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.9224419819429932, -2.366219133566154, -2.2180422257783228]}}