{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:34:39.842845", "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": "2023-Mar-09_to_2023-Mar-11_136.5_-66.0"}, "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": 2023030001581}, "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": "March 09 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 11 2023"}, "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": 83762.65312747854}, "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": -66.0}, "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": 136.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "136.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 127.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 140.75}, "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": -64.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2023-03-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[128.5, -65.25], [128.75, -65.35], [128.82, -65.32], [128.85, -65.25], [128.75, -65.0], [128.97, -64.47], [129.5, -64.25], [129.75, -64.35], [130.0, -64.25], [130.25, -64.35], [130.5, -64.25], [130.75, -64.35], [131.0, -64.25], [131.25, -64.35], [131.5, -64.25], [131.75, -64.35], [132.0, -64.25], [132.25, -64.35], [132.5, -64.25], [132.75, -64.35], [133.0, -64.25], [133.25, -64.35], [133.5, -64.25], [133.75, -64.35], [134.0, -64.25], [134.53, -64.47], [134.68, -64.82], [134.75, -64.85], [134.82, -64.82], [134.97, -64.47], [135.5, -64.25], [135.75, -64.35], [136.0, -64.25], [136.25, -64.35], [136.5, -64.25], [136.75, -64.35], [137.0, -64.25], [137.53, -64.47], [137.68, -64.82], [137.75, -64.85], [138.0, -64.75], [138.25, -64.85], [138.5, -64.75], [138.75, -64.85], [139.0, -64.75], [139.53, -64.97], [139.68, -65.32], [139.75, -65.35], [140.0, -65.25], [140.25, -65.35], [140.5, -65.25], [141.03, -65.47], [141.25, -66.0], [141.15, -66.25], [141.25, -66.5], [141.03, -67.03], [140.5, -67.25], [140.25, -67.15], [140.18, -67.18], [140.03, -67.53], [139.5, -67.75], [139.25, -67.65], [139.0, -67.75], [138.75, -67.65], [138.5, -67.75], [137.97, -67.53], [137.82, -67.18], [137.75, -67.15], [137.5, -67.25], [136.97, -67.03], [136.82, -66.68], [136.75, -66.65], [136.5, -66.75], [136.25, -66.65], [136.0, -66.75], [135.75, -66.65], [135.5, -66.75], [134.97, -66.53], [134.82, -66.18], [134.75, -66.15], [134.5, -66.25], [134.25, -66.15], [134.0, -66.25], [133.75, -66.15], [133.5, -66.25], [133.25, -66.15], [133.0, -66.25], [132.75, -66.15], [132.68, -66.18], [132.53, -66.53], [132.0, -66.75], [131.75, -66.65], [131.5, -66.75], [131.25, -66.65], [131.0, -66.75], [130.75, -66.65], [130.5, -66.75], [130.25, -66.65], [130.0, -66.75], [129.75, -66.65], [129.68, -66.68], [129.53, -67.03], [129.0, -67.25], [128.75, -67.15], [128.5, -67.25], [128.25, -67.15], [128.0, -67.25], [127.47, -67.03], [127.25, -66.5], [127.47, -65.97], [127.82, -65.82], [127.97, -65.47], [128.5, -65.25]]]]}, "2023-03-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[128.5, -65.25], [128.75, -65.35], [128.82, -65.32], [128.85, -65.25], [128.75, -65.0], [128.97, -64.47], [129.5, -64.25], [129.75, -64.35], [130.0, -64.25], [130.25, -64.35], [130.5, -64.25], [130.75, -64.35], [131.0, -64.25], [131.25, -64.35], [131.5, -64.25], [131.75, -64.35], [132.0, -64.25], [132.25, -64.35], [132.5, -64.25], [132.75, -64.35], [133.0, -64.25], [133.25, -64.35], [133.5, -64.25], [133.75, -64.35], [134.0, -64.25], [134.53, -64.47], [134.68, -64.82], [134.75, -64.85], [134.82, -64.82], [134.97, -64.47], [135.5, -64.25], [135.75, -64.35], [136.0, -64.25], [136.25, -64.35], [136.5, -64.25], [136.75, -64.35], [137.0, -64.25], [137.53, -64.47], [137.68, -64.82], [137.75, -64.85], [138.0, -64.75], [138.25, -64.85], [138.5, -64.75], [138.75, -64.85], [139.0, -64.75], [139.53, -64.97], [139.68, -65.32], [139.75, -65.35], [140.0, -65.25], [140.25, -65.35], [140.5, -65.25], [141.03, -65.47], [141.25, -66.0], [141.15, -66.25], [141.25, -66.5], [141.03, -67.03], [140.5, -67.25], [140.25, -67.15], [140.18, -67.18], [140.03, -67.53], [139.5, -67.75], [139.25, -67.65], [139.0, -67.75], [138.75, -67.65], [138.5, -67.75], [137.97, -67.53], [137.82, -67.18], [137.75, -67.15], [137.5, -67.25], [136.97, -67.03], [136.82, -66.68], [136.75, -66.65], [136.5, -66.75], [136.25, -66.65], [136.0, -66.75], [135.75, -66.65], [135.5, -66.75], [134.97, -66.53], [134.82, -66.18], [134.75, -66.15], [134.5, -66.25], [134.25, -66.15], [134.0, -66.25], [133.75, -66.15], [133.5, -66.25], [133.25, -66.15], [133.0, -66.25], [132.75, -66.15], [132.68, -66.18], [132.53, -66.53], [132.0, -66.75], [131.75, -66.65], [131.5, -66.75], [131.25, -66.65], [131.0, -66.75], [130.75, -66.65], [130.5, -66.75], [130.25, -66.65], [130.0, -66.75], [129.75, -66.65], [129.68, -66.68], [129.53, -67.03], [129.0, -67.25], [128.75, -67.15], [128.5, -67.25], [128.25, -67.15], [128.0, -67.25], [127.47, -67.03], [127.25, -66.5], [127.47, -65.97], [127.82, -65.82], [127.97, -65.47], [128.5, -65.25]]]]}, "2023-03-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[128.5, -65.25], [128.75, -65.35], [128.82, -65.32], [128.85, -65.25], [128.75, -65.0], [128.97, -64.47], [129.5, -64.25], [129.75, -64.35], [130.0, -64.25], [130.25, -64.35], [130.5, -64.25], [130.75, -64.35], [131.0, -64.25], [131.25, -64.35], [131.5, -64.25], [131.75, -64.35], [132.0, -64.25], [132.25, -64.35], [132.5, -64.25], [132.75, -64.35], [133.0, -64.25], [133.25, -64.35], [133.5, -64.25], [133.75, -64.35], [134.0, -64.25], [134.53, -64.47], [134.68, -64.82], [134.75, -64.85], [134.82, -64.82], [134.97, -64.47], [135.5, -64.25], [135.75, -64.35], [136.0, -64.25], [136.25, -64.35], [136.5, -64.25], [136.75, -64.35], [137.0, -64.25], [137.53, -64.47], [137.68, -64.82], [137.75, -64.85], [138.0, -64.75], [138.25, -64.85], [138.5, -64.75], [138.75, -64.85], [139.0, -64.75], [139.53, -64.97], [139.68, -65.32], [139.75, -65.35], [140.0, -65.25], [140.25, -65.35], [140.5, -65.25], [141.03, -65.47], [141.25, -66.0], [141.15, -66.25], [141.25, -66.5], [141.03, -67.03], [140.5, -67.25], [140.25, -67.15], [140.18, -67.18], [140.03, -67.53], [139.5, -67.75], [139.25, -67.65], [139.0, -67.75], [138.75, -67.65], [138.5, -67.75], [137.97, -67.53], [137.82, -67.18], [137.75, -67.15], [137.5, -67.25], [136.97, -67.03], [136.82, -66.68], [136.75, -66.65], [136.5, -66.75], [136.25, -66.65], [136.0, -66.75], [135.75, -66.65], [135.5, -66.75], [134.97, -66.53], [134.82, -66.18], [134.75, -66.15], [134.5, -66.25], [134.25, -66.15], [134.0, -66.25], [133.75, -66.15], [133.5, -66.25], [133.25, -66.15], [133.0, -66.25], [132.75, -66.15], [132.68, -66.18], [132.53, -66.53], [132.0, -66.75], [131.75, -66.65], [131.5, -66.75], [131.25, -66.65], [131.0, -66.75], [130.75, -66.65], [130.5, -66.75], [130.25, -66.65], [130.0, -66.75], [129.75, -66.65], [129.68, -66.68], [129.53, -67.03], [129.0, -67.25], [128.75, -67.15], [128.5, -67.25], [128.25, -67.15], [128.0, -67.25], [127.47, -67.03], [127.25, -66.5], [127.47, -65.97], [127.82, -65.82], [127.97, -65.47], [128.5, -65.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 8.155754444438742}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.697578263108168}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-1.06931781989897, -0.22790028505090731, -2.391924849442603]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [0.47798423659992295, 1.0684014979534027, -0.5215769114190607]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.652827752851646, 5.701695350037973, 3.738211686434881]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [7.614675230292107, 8.155754444438742, 5.068402423454984]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [2.0370478506565153, 2.459106696283051, 1.5573169744404294]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.7399449454963225, 2.868365903894752, 1.9706808031831566]}}