{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:46:50.615224", "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-Feb-17_to_2011-Feb-20_305.0_-30.5"}, "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": 2011020002124}, "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": "February 17 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 20 2011"}, "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": 58767.585257903615}, "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": ["Brazil", "Uruguay"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.E.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": []}, "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": -30.5}, "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": 305.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "305.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 303.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 307.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -31.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -28.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-02-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-56.65, -29.75], [-56.75, -29.5], [-56.65, -29.25], [-56.75, -29.0], [-56.53, -28.47], [-56.0, -28.25], [-55.75, -28.35], [-55.5, -28.25], [-54.97, -28.47], [-54.82, -28.82], [-54.75, -28.85], [-54.5, -28.75], [-53.97, -28.97], [-53.75, -29.5], [-53.85, -29.75], [-53.82, -29.82], [-53.75, -29.85], [-53.5, -29.75], [-53.25, -29.85], [-53.0, -29.75], [-52.47, -29.97], [-52.25, -30.5], [-52.47, -31.03], [-52.82, -31.18], [-52.97, -31.53], [-53.5, -31.75], [-53.75, -31.65], [-54.0, -31.75], [-54.25, -31.65], [-54.5, -31.75], [-54.75, -31.65], [-55.0, -31.75], [-55.25, -31.65], [-55.5, -31.75], [-56.03, -31.53], [-56.18, -31.18], [-56.53, -31.03], [-56.75, -30.5], [-56.65, -30.25], [-56.75, -30.0], [-56.65, -29.75]]]]}, "2011-02-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-56.65, -29.75], [-56.75, -29.5], [-56.65, -29.25], [-56.75, -29.0], [-56.53, -28.47], [-56.0, -28.25], [-55.75, -28.35], [-55.5, -28.25], [-54.97, -28.47], [-54.82, -28.82], [-54.75, -28.85], [-54.5, -28.75], [-53.97, -28.97], [-53.75, -29.5], [-53.85, -29.75], [-53.82, -29.82], [-53.75, -29.85], [-53.5, -29.75], [-53.25, -29.85], [-53.0, -29.75], [-52.47, -29.97], [-52.25, -30.5], [-52.47, -31.03], [-52.82, -31.18], [-52.97, -31.53], [-53.5, -31.75], [-53.75, -31.65], [-54.0, -31.75], [-54.25, -31.65], [-54.5, -31.75], [-54.75, -31.65], [-55.0, -31.75], [-55.25, -31.65], [-55.5, -31.75], [-56.03, -31.53], [-56.18, -31.18], [-56.53, -31.03], [-56.75, -30.5], [-56.65, -30.25], [-56.75, -30.0], [-56.65, -29.75]]]]}, "2011-02-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-56.65, -29.75], [-56.75, -29.5], [-56.65, -29.25], [-56.75, -29.0], [-56.53, -28.47], [-56.0, -28.25], [-55.75, -28.35], [-55.5, -28.25], [-54.97, -28.47], [-54.82, -28.82], [-54.75, -28.85], [-54.5, -28.75], [-53.97, -28.97], [-53.75, -29.5], [-53.85, -29.75], [-53.82, -29.82], [-53.75, -29.85], [-53.5, -29.75], [-53.25, -29.85], [-53.0, -29.75], [-52.47, -29.97], [-52.25, -30.5], [-52.47, -31.03], [-52.82, -31.18], [-52.97, -31.53], [-53.5, -31.75], [-53.75, -31.65], [-54.0, -31.75], [-54.25, -31.65], [-54.5, -31.75], [-54.75, -31.65], [-55.0, -31.75], [-55.25, -31.65], [-55.5, -31.75], [-56.03, -31.53], [-56.18, -31.18], [-56.53, -31.03], [-56.75, -30.5], [-56.65, -30.25], [-56.75, -30.0], [-56.65, -29.75]]]]}, "2011-02-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-56.75, -30.0], [-56.53, -29.47], [-56.0, -29.25], [-55.75, -29.35], [-55.5, -29.25], [-55.25, -29.35], [-55.0, -29.25], [-54.75, -29.35], [-54.5, -29.25], [-53.97, -29.47], [-53.75, -30.0], [-53.85, -30.25], [-53.75, -30.5], [-53.85, -30.75], [-53.75, -31.0], [-53.97, -31.53], [-54.5, -31.75], [-54.75, -31.65], [-55.0, -31.75], [-55.53, -31.53], [-55.68, -31.18], [-56.03, -31.03], [-56.18, -30.68], [-56.53, -30.53], [-56.75, -30.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 4.3476698414731345}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.2834800773913995}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.24609916358122, 27.6614205762894, 27.511826919800342, 27.29126242458733]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [28.297161039352204, 28.6500352743455, 28.786337508394013, 27.83684780629676]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.1430962343662903, 3.4662320429692026, 3.321201569124815, 3.0877054646920215]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.918214992894434, 4.3476698414731345, 4.209573007508368, 3.5227772883400235]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3834763139315152, 1.4628862711552209, 1.3655105894286859, 1.221544161678843]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.7084032392833945, 1.8326517768870911, 1.717746296966077, 1.3915764658536913]}}