{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:52:06.934870", "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": "2012-Dec-13_to_2012-Dec-16_50.5_-66.5"}, "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": 2012120001993}, "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": "December 13 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 16 2012"}, "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": "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": 53862.906695168975}, "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": ["E.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": -66.5}, "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": 50.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "50.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 46.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 54.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -67.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -65.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-12-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[49.47, -67.03], [49.25, -66.5], [49.47, -65.97], [50.0, -65.75], [50.25, -65.85], [50.5, -65.75], [50.75, -65.85], [51.0, -65.75], [51.53, -65.97], [51.75, -66.5], [51.53, -67.03], [51.0, -67.25], [50.75, -67.15], [50.5, -67.25], [50.25, -67.15], [50.0, -67.25], [49.47, -67.03]]]]}, "2012-12-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[46.25, -66.0], [46.47, -65.47], [46.82, -65.32], [46.97, -64.97], [47.5, -64.75], [47.75, -64.85], [48.0, -64.75], [48.25, -64.85], [48.5, -64.75], [48.75, -64.85], [49.0, -64.75], [49.25, -64.85], [49.5, -64.75], [49.75, -64.85], [50.0, -64.75], [50.25, -64.85], [50.5, -64.75], [50.75, -64.85], [51.0, -64.75], [51.25, -64.85], [51.5, -64.75], [51.75, -64.85], [52.0, -64.75], [52.25, -64.85], [52.5, -64.75], [52.75, -64.85], [53.0, -64.75], [53.53, -64.97], [53.68, -65.32], [53.75, -65.35], [54.0, -65.25], [54.53, -65.47], [54.75, -66.0], [54.53, -66.53], [54.0, -66.75], [53.75, -66.65], [53.5, -66.75], [53.25, -66.65], [53.18, -66.68], [53.03, -67.03], [52.5, -67.25], [52.25, -67.15], [52.0, -67.25], [51.75, -67.15], [51.5, -67.25], [51.25, -67.15], [51.0, -67.25], [50.75, -67.15], [50.5, -67.25], [50.25, -67.15], [50.0, -67.25], [49.75, -67.15], [49.5, -67.25], [49.25, -67.15], [49.0, -67.25], [48.75, -67.15], [48.68, -67.18], [48.53, -67.53], [48.0, -67.75], [47.75, -67.65], [47.5, -67.75], [47.25, -67.65], [47.0, -67.75], [46.75, -67.65], [46.5, -67.75], [45.97, -67.53], [45.75, -67.0], [45.97, -66.47], [46.32, -66.32], [46.35, -66.25], [46.25, -66.0]]]]}, "2012-12-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[46.25, -66.0], [46.47, -65.47], [46.82, -65.32], [46.97, -64.97], [47.5, -64.75], [47.75, -64.85], [48.0, -64.75], [48.25, -64.85], [48.5, -64.75], [48.75, -64.85], [49.0, -64.75], [49.25, -64.85], [49.5, -64.75], [49.75, -64.85], [50.0, -64.75], [50.25, -64.85], [50.5, -64.75], [50.75, -64.85], [51.0, -64.75], [51.25, -64.85], [51.5, -64.75], [51.75, -64.85], [52.0, -64.75], [52.25, -64.85], [52.5, -64.75], [52.75, -64.85], [53.0, -64.75], [53.53, -64.97], [53.68, -65.32], [53.75, -65.35], [54.0, -65.25], [54.53, -65.47], [54.75, -66.0], [54.53, -66.53], [54.0, -66.75], [53.75, -66.65], [53.5, -66.75], [53.25, -66.65], [53.18, -66.68], [53.03, -67.03], [52.5, -67.25], [52.25, -67.15], [52.0, -67.25], [51.75, -67.15], [51.5, -67.25], [51.25, -67.15], [51.0, -67.25], [50.75, -67.15], [50.5, -67.25], [50.25, -67.15], [50.0, -67.25], [49.75, -67.15], [49.5, -67.25], [49.25, -67.15], [49.0, -67.25], [48.75, -67.15], [48.68, -67.18], [48.53, -67.53], [48.0, -67.75], [47.75, -67.65], [47.5, -67.75], [47.25, -67.65], [47.0, -67.75], [46.75, -67.65], [46.5, -67.75], [45.97, -67.53], [45.75, -67.0], [45.97, -66.47], [46.32, -66.32], [46.35, -66.25], [46.25, -66.0]]]]}, "2012-12-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[46.25, -66.0], [46.47, -65.47], [46.82, -65.32], [46.97, -64.97], [47.5, -64.75], [47.75, -64.85], [48.0, -64.75], [48.25, -64.85], [48.5, -64.75], [48.75, -64.85], [49.0, -64.75], [49.25, -64.85], [49.5, -64.75], [49.75, -64.85], [50.0, -64.75], [50.25, -64.85], [50.5, -64.75], [50.75, -64.85], [51.0, -64.75], [51.25, -64.85], [51.5, -64.75], [51.75, -64.85], [52.0, -64.75], [52.25, -64.85], [52.5, -64.75], [52.75, -64.85], [53.0, -64.75], [53.53, -64.97], [53.68, -65.32], [53.75, -65.35], [54.0, -65.25], [54.53, -65.47], [54.75, -66.0], [54.53, -66.53], [54.0, -66.75], [53.75, -66.65], [53.5, -66.75], [53.25, -66.65], [53.18, -66.68], [53.03, -67.03], [52.5, -67.25], [52.25, -67.15], [52.0, -67.25], [51.75, -67.15], [51.5, -67.25], [51.25, -67.15], [51.0, -67.25], [50.75, -67.15], [50.5, -67.25], [50.25, -67.15], [50.0, -67.25], [49.75, -67.15], [49.5, -67.25], [49.25, -67.15], [49.0, -67.25], [48.75, -67.15], [48.68, -67.18], [48.53, -67.53], [48.0, -67.75], [47.75, -67.65], [47.5, -67.75], [47.25, -67.65], [47.0, -67.75], [46.75, -67.65], [46.5, -67.75], [45.97, -67.53], [45.75, -67.0], [45.97, -66.47], [46.32, -66.32], [46.35, -66.25], [46.25, -66.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.327651993020254}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.654467310771253}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-2.161692516527239, -0.7140944596841905, -0.9881861773568517, -0.8799872046674864]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-0.7096156138708807, 0.5861955442699127, 0.4292312492649444, 0.28868289076461906]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.7256266217749499, 1.877082811394744, 1.5247565929682771, 1.5565979248574566]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.9718989827023847, 3.327651993020254, 3.0286051762753345, 3.2347665527420304]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.2958841961605134, 2.012536716068154, 1.6352774499302063, 1.7513847730411345]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.4009712081514574, 2.431704253372051, 2.013137828963226, 2.495668736681168]}}