{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:43:56.198711", "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": "2010-Jan-09_to_2010-Jan-11_335.0_-74.5"}, "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": 2010010001606}, "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": "January 09 2010"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 11 2010"}, "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": "Heat wave"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 50315.65058852958}, "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": ["Antarctica"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Southern-Ocean"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Antarctica"]}, "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": ["Southern 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": -74.5}, "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": 335.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "335.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 330.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 336.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -74.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -70.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2010-01-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-29.53, -71.47], [-29.0, -71.25], [-28.75, -71.35], [-28.5, -71.25], [-28.25, -71.35], [-28.18, -71.32], [-28.03, -70.97], [-27.5, -70.75], [-27.25, -70.85], [-27.18, -70.82], [-27.03, -70.47], [-26.5, -70.25], [-26.25, -70.35], [-26.18, -70.32], [-26.03, -69.97], [-25.5, -69.75], [-24.97, -69.97], [-24.82, -70.32], [-24.47, -70.47], [-24.25, -71.0], [-24.35, -71.25], [-24.25, -71.5], [-24.35, -71.75], [-24.32, -71.82], [-23.97, -71.97], [-23.75, -72.5], [-23.97, -73.03], [-24.37, -73.2], [-24.32, -73.32], [-23.97, -73.47], [-23.82, -73.82], [-23.47, -73.97], [-23.25, -74.5], [-23.47, -75.03], [-24.0, -75.25], [-24.25, -75.15], [-24.5, -75.25], [-24.75, -75.15], [-25.0, -75.25], [-25.25, -75.15], [-25.5, -75.25], [-26.03, -75.03], [-26.18, -74.68], [-26.25, -74.65], [-26.5, -74.75], [-26.75, -74.65], [-27.0, -74.75], [-27.25, -74.65], [-27.5, -74.75], [-27.75, -74.65], [-28.0, -74.75], [-28.25, -74.65], [-28.5, -74.75], [-29.03, -74.53], [-29.18, -74.18], [-29.25, -74.15], [-29.5, -74.25], [-30.03, -74.03], [-30.25, -73.5], [-30.03, -72.97], [-29.62, -72.8], [-29.75, -72.5], [-29.65, -72.25], [-29.75, -72.0], [-29.53, -71.47]], [[-25.68, -72.68], [-25.75, -72.65], [-25.87, -72.7], [-25.82, -72.82], [-25.75, -72.85], [-25.62, -72.8], [-25.68, -72.68]]]]}, "2010-01-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-29.53, -71.47], [-29.0, -71.25], [-28.75, -71.35], [-28.5, -71.25], [-28.25, -71.35], [-28.18, -71.32], [-28.03, -70.97], [-27.5, -70.75], [-27.25, -70.85], [-27.18, -70.82], [-27.03, -70.47], [-26.5, -70.25], [-26.25, -70.35], [-26.18, -70.32], [-26.03, -69.97], [-25.5, -69.75], [-24.97, -69.97], [-24.82, -70.32], [-24.47, -70.47], [-24.25, -71.0], [-24.35, -71.25], [-24.25, -71.5], [-24.35, -71.75], [-24.32, -71.82], [-23.97, -71.97], [-23.75, -72.5], [-23.97, -73.03], [-24.37, -73.2], [-24.32, -73.32], [-23.97, -73.47], [-23.82, -73.82], [-23.47, -73.97], [-23.25, -74.5], [-23.47, -75.03], [-24.0, -75.25], [-24.25, -75.15], [-24.5, -75.25], [-24.75, -75.15], [-25.0, -75.25], [-25.25, -75.15], 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anomaly recorded over entire duration", "value": 2.8292605416029915}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.2996067681191883}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [0.4940174009016687, 0.41153172790143344, 0.2558361320742506]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [1.3283658832450556, 1.018464489389828, 0.9187393749159014]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.421982491788091, 1.3165137340556776, 1.1603240785137958]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.8292605416029915, 2.3653698154068934, 2.683231930677948]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.971897981795739, 1.823642553399902, 1.5578731475513543]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.3853557047810114, 2.0941257774445234, 1.9261964646490806]}}