{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:48:11.821544", "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": "2011-Aug-06_to_2011-Aug-10_297.5_-70.5"}, "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": 2011080002107}, "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 06 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 10 2011"}, "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": "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": 123160.31428559002}, "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": ["W.Antarctica"]}, "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": -70.5}, "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": 297.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "297.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 291.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 299.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -75.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -66.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-08-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-65.0, -66.75], [-64.75, -66.85], [-64.5, -66.75], [-64.25, -66.85], [-64.0, -66.75], [-63.75, -66.85], [-63.5, -66.75], [-63.25, -66.85], [-63.0, -66.75], [-62.75, -66.85], [-62.5, -66.75], [-62.25, -66.85], [-62.0, -66.75], [-61.75, -66.85], [-61.5, -66.75], [-61.25, -66.85], [-61.0, -66.75], [-60.47, -66.97], [-60.25, -67.5], [-60.35, -67.75], [-60.25, -68.0], [-60.47, -68.53], [-60.82, -68.68], [-60.97, -69.03], [-61.37, -69.2], [-61.25, -69.5], [-61.47, -70.03], [-61.82, -70.18], [-61.85, -70.25], [-61.82, -70.32], [-61.75, -70.35], [-61.5, -70.25], [-60.97, -70.47], [-60.75, -71.0], [-60.97, -71.53], [-61.5, -71.75], [-61.75, -71.65], [-62.0, -71.75], [-62.25, -71.65], [-62.5, -71.75], [-63.03, -71.53], [-63.25, -71.0], [-63.15, -70.75], [-63.18, -70.68], [-63.25, -70.65], [-63.5, -70.75], [-64.03, -70.53], [-64.25, -70.0], [-64.12, -69.7], [-64.53, -69.53], [-64.75, -69.0], [-64.65, -68.75], [-64.68, -68.68], [-64.75, -68.65], [-65.0, -68.75], [-65.25, -68.65], [-65.5, -68.75], [-66.03, -68.53], [-66.25, -68.0], [-66.03, -67.47], [-65.68, -67.32], [-65.53, -66.97], [-65.0, -66.75]]]]}, "2011-08-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-69.03, -76.03], [-69.25, -75.5], [-69.03, -74.97], [-68.5, -74.75], [-68.25, -74.85], [-68.0, -74.75], [-67.75, -74.85], [-67.68, -74.82], [-67.53, -74.47], [-67.0, -74.25], [-66.75, -74.35], [-66.68, -74.32], [-66.53, -73.97], [-66.0, -73.75], [-65.75, -73.85], [-65.68, -73.82], [-65.62, -73.7], [-66.03, -73.53], [-66.25, -73.0], [-66.15, -72.75], [-66.18, -72.68], [-66.53, -72.53], [-66.75, -72.0], [-66.54, -71.5], [-66.75, -71.0], [-66.53, -70.47], [-66.0, -70.25], [-65.75, -70.35], [-65.5, -70.25], [-65.25, -70.35], [-65.0, -70.25], [-64.75, -70.35], [-64.68, -70.32], [-64.65, -70.25], [-64.75, -70.0], [-64.65, -69.75], [-64.68, -69.68], [-64.75, -69.65], [-65.0, -69.75], [-65.25, -69.65], [-65.5, -69.75], [-66.0, -69.54], [-66.5, -69.75], [-66.75, -69.65], [-67.0, -69.75], [-67.53, -69.53], [-67.75, -69.0], [-67.65, -68.75], [-67.75, -68.5], [-67.53, -67.97], [-67.18, -67.82], [-67.03, -67.47], [-66.68, -67.32], [-66.53, -66.97], [-66.0, -66.75], [-65.75, -66.85], [-65.68, -66.82], [-65.53, -66.47], [-65.0, -66.25], [-64.75, -66.35], [-64.5, -66.25], [-64.25, -66.35], [-64.0, -66.25], [-63.47, -66.47], [-63.32, -66.82], [-63.25, -66.85], [-63.0, -66.75], [-62.75, -66.85], [-62.5, -66.75], [-62.25, -66.85], [-62.0, -66.75], [-61.75, -66.85], [-61.5, -66.75], [-61.25, -66.85], [-61.0, -66.75], [-60.47, -66.97], [-60.25, -67.5], [-60.35, -67.75], [-60.25, -68.0], [-60.47, -68.53], [-60.82, -68.68], [-60.97, -69.03], [-61.37, -69.2], [-61.25, -69.5], [-61.47, -70.03], [-61.82, -70.18], [-61.85, -70.25], [-61.82, -70.32], [-61.75, -70.35], [-61.5, -70.25], [-60.97, -70.47], [-60.75, -71.0], [-60.97, -71.53], [-61.32, -71.68], [-61.46, -72.0], [-61.25, -72.5], [-61.35, -72.75], [-61.25, -73.0], [-61.47, -73.53], [-61.82, -73.68], [-61.97, -74.03], [-62.5, -74.25], [-62.75, -74.15], [-62.87, -74.2], [-62.75, -74.5], [-62.97, -75.03], [-63.5, -75.25], [-63.75, -75.15], [-64.0, -75.25], [-64.25, -75.15], [-64.5, -75.25], [-64.75, -75.15], [-65.0, -75.25], [-65.25, -75.15], [-65.32, -75.18], [-65.47, -75.53], [-65.82, -75.68], [-65.97, -76.03], [-66.5, -76.25], [-66.75, -76.15], [-67.0, -76.25], [-67.25, -76.15], [-67.5, -76.25], [-67.75, -76.15], [-68.0, -76.25], [-68.25, -76.15], [-68.5, -76.25], [-69.03, -76.03]]]]}, "2011-08-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-69.03, -76.03], [-69.25, -75.5], [-69.03, -74.97], [-68.5, -74.75], [-68.25, -74.85], [-68.0, -74.75], [-67.75, -74.85], [-67.68, -74.82], [-67.53, -74.47], [-67.0, -74.25], [-66.75, -74.35], [-66.68, -74.32], [-66.53, -73.97], [-66.0, -73.75], [-65.75, -73.85], [-65.68, -73.82], [-65.62, -73.7], [-66.03, -73.53], [-66.25, -73.0], [-66.15, -72.75], [-66.18, -72.68], [-66.53, -72.53], [-66.75, -72.0], [-66.54, -71.5], [-66.75, -71.0], [-66.53, -70.47], [-66.0, -70.25], [-65.75, -70.35], [-65.5, -70.25], [-65.25, -70.35], [-65.0, -70.25], [-64.75, -70.35], [-64.68, -70.32], [-64.65, -70.25], [-64.75, -70.0], [-64.65, -69.75], [-64.68, -69.68], [-64.75, -69.65], [-65.0, -69.75], [-65.25, -69.65], [-65.5, -69.75], [-66.0, -69.54], [-66.5, -69.75], [-66.75, -69.65], [-67.0, -69.75], [-67.53, -69.53], [-67.75, -69.0], [-67.65, -68.75], [-67.75, -68.5], [-67.53, -67.97], [-67.18, -67.82], [-67.03, -67.47], [-66.68, -67.32], [-66.53, -66.97], [-66.0, -66.75], [-65.75, -66.85], [-65.68, -66.82], [-65.53, -66.47], [-65.0, -66.25], [-64.75, -66.35], [-64.5, -66.25], [-64.25, -66.35], [-64.0, -66.25], [-63.47, -66.47], [-63.32, -66.82], [-63.25, -66.85], [-63.0, -66.75], [-62.75, -66.85], [-62.5, -66.75], [-62.25, -66.85], [-62.0, -66.75], [-61.75, -66.85], [-61.5, -66.75], [-61.25, -66.85], [-61.0, -66.75], [-60.47, -66.97], [-60.25, -67.5], [-60.35, -67.75], [-60.25, -68.0], [-60.47, -68.53], [-60.82, -68.68], [-60.97, -69.03], [-61.37, -69.2], [-61.25, -69.5], [-61.47, -70.03], [-61.82, -70.18], [-61.85, -70.25], [-61.82, -70.32], [-61.75, -70.35], [-61.5, -70.25], [-60.97, -70.47], [-60.75, -71.0], [-60.97, -71.53], [-61.32, -71.68], [-61.46, -72.0], [-61.25, -72.5], [-61.35, -72.75], [-61.25, -73.0], [-61.47, -73.53], [-61.82, -73.68], [-61.97, -74.03], [-62.5, -74.25], [-62.75, -74.15], [-62.87, -74.2], [-62.75, -74.5], [-62.97, -75.03], [-63.5, -75.25], [-63.75, -75.15], [-64.0, -75.25], [-64.25, -75.15], [-64.5, -75.25], [-64.75, -75.15], [-65.0, -75.25], [-65.25, -75.15], [-65.32, -75.18], [-65.47, -75.53], [-65.82, -75.68], [-65.97, -76.03], [-66.5, -76.25], [-66.75, -76.15], [-67.0, -76.25], [-67.25, -76.15], [-67.5, -76.25], [-67.75, -76.15], [-68.0, -76.25], [-68.25, -76.15], [-68.5, -76.25], [-69.03, -76.03]]]]}, "2011-08-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-69.03, -76.03], [-69.25, -75.5], [-69.03, -74.97], [-68.5, -74.75], [-68.25, -74.85], [-68.0, -74.75], [-67.75, -74.85], [-67.68, -74.82], [-67.53, -74.47], [-67.0, -74.25], [-66.75, -74.35], [-66.68, -74.32], [-66.53, -73.97], [-66.0, -73.75], [-65.75, -73.85], [-65.68, -73.82], [-65.62, -73.7], [-66.03, -73.53], [-66.25, -73.0], [-66.15, -72.75], [-66.18, -72.68], [-66.53, -72.53], [-66.75, -72.0], [-66.54, -71.5], [-66.75, -71.0], [-66.53, -70.47], [-66.0, -70.25], [-65.75, -70.35], [-65.5, -70.25], [-65.25, -70.35], [-65.0, -70.25], [-64.75, -70.35], [-64.68, -70.32], [-64.65, -70.25], [-64.75, -70.0], [-64.65, -69.75], [-64.68, -69.68], [-64.75, -69.65], [-65.0, -69.75], [-65.25, -69.65], [-65.5, -69.75], [-66.0, -69.54], [-66.5, -69.75], [-66.75, -69.65], [-67.0, -69.75], [-67.53, -69.53], [-67.75, -69.0], [-67.65, -68.75], [-67.75, -68.5], [-67.53, -67.97], [-67.18, -67.82], [-67.03, -67.47], [-66.68, -67.32], [-66.53, -66.97], [-66.0, -66.75], [-65.75, -66.85], [-65.68, -66.82], [-65.53, -66.47], [-65.0, -66.25], [-64.75, -66.35], [-64.5, -66.25], [-64.25, -66.35], [-64.0, -66.25], [-63.47, -66.47], [-63.32, -66.82], [-63.25, -66.85], [-63.0, -66.75], [-62.75, -66.85], [-62.5, -66.75], [-62.25, -66.85], [-62.0, -66.75], [-61.75, -66.85], [-61.5, -66.75], [-61.25, -66.85], [-61.0, -66.75], [-60.47, -66.97], [-60.25, -67.5], [-60.47, -68.03], [-61.0, -68.25], [-61.25, -68.15], [-61.32, -68.18], [-61.47, -68.53], [-62.0, -68.75], [-62.25, -68.65], [-62.32, -68.68], [-62.35, -68.75], [-62.25, -69.0], [-62.35, -69.25], [-62.25, -69.5], [-62.35, -69.75], [-62.32, -69.82], [-61.97, -69.97], [-61.82, -70.32], [-61.47, -70.47], [-61.25, -71.0], [-61.35, -71.25], [-61.25, -71.5], [-61.46, -72.0], [-61.25, -72.5], [-61.35, -72.75], [-61.25, -73.0], [-61.47, -73.53], [-61.82, -73.68], [-61.97, -74.03], [-62.5, -74.25], [-62.75, -74.15], [-62.87, -74.2], [-62.75, -74.5], [-62.97, -75.03], [-63.5, -75.25], [-63.75, -75.15], [-64.0, -75.25], [-64.25, -75.15], [-64.5, -75.25], [-64.75, -75.15], [-65.0, -75.25], [-65.25, -75.15], [-65.32, -75.18], [-65.47, -75.53], [-65.82, -75.68], [-65.97, -76.03], [-66.5, -76.25], [-66.75, -76.15], [-67.0, -76.25], [-67.25, -76.15], [-67.5, -76.25], [-67.75, -76.15], [-68.0, -76.25], [-68.25, -76.15], [-68.5, -76.25], [-69.03, -76.03]]]]}, "2011-08-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-62.5, -69.75], [-61.97, -69.97], [-61.75, -70.5], [-61.97, -71.03], [-62.5, -71.25], [-63.03, -71.03], [-63.25, -70.5], [-63.03, -69.97], [-62.5, -69.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 18.942125017276425}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 12.392807460230962}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-8.361135503707146, -9.951726328370057, -8.970327195686991, -9.438898913643925, -12.41846132869324]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-3.983600633052731, -1.001479205758585, -0.4451577026471796, -2.1055931290582066, -12.41846132869324]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [11.447774210173487, 11.845983666543795, 12.923882467034378, 12.76074468182758, 9.000705356523014]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [14.609799357944837, 18.874086706304894, 18.942125017276425, 16.597711069717462, 9.000705356523014]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.6290424035892586, 1.7421242035778919, 1.8833567193306335, 1.9057054189879792, 1.4841652162867145]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.9534670704369974, 2.6220178930999176, 2.4909254326079724, 2.2780236423698947, 1.4841652162867145]}}