{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:59:28.655610", "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": "2026-Apr-23_to_2026-Apr-27_306.5_-13.0"}, "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": 2026040002308}, "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": "April 23 2026"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 27 2026"}, "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": 84449.08854224705}, "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"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["South-American-Monsoon"]}, "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": -13.0}, "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": 306.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "306.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 304.25}, "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": -14.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -10.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2026-04-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-54.54, -11.5], [-54.75, -11.0], [-54.53, -10.47], [-54.0, -10.25], [-53.75, -10.35], [-53.5, -10.25], [-53.25, -10.35], [-53.0, -10.25], [-52.47, -10.47], [-52.25, -11.0], [-52.35, -11.25], [-52.25, -11.5], [-52.47, -12.03], [-52.87, -12.2], [-52.75, -12.5], [-52.85, -12.75], [-52.75, -13.0], [-52.97, -13.53], [-53.5, -13.75], [-54.03, -13.53], [-54.18, -13.18], [-54.53, -13.03], [-54.75, -12.5], [-54.65, -12.25], [-54.75, -12.0], [-54.54, -11.5]]]]}, "2026-04-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-56.03, -12.47], [-55.68, -12.32], [-55.53, -11.97], [-55.18, -11.82], [-55.03, -11.47], [-54.68, -11.32], [-54.65, -11.25], [-54.68, -11.18], [-55.03, -11.03], [-55.25, -10.5], [-55.03, -9.97], [-54.5, -9.75], [-53.97, -9.97], [-53.82, -10.32], [-53.75, -10.35], [-53.5, -10.25], [-53.25, -10.35], [-53.0, -10.25], [-52.47, -10.47], [-52.25, -11.0], [-52.35, -11.25], [-52.25, -11.5], [-52.47, -12.03], [-52.82, -12.18], [-52.85, -12.25], [-52.75, -12.5], [-52.85, -12.75], [-52.75, -13.0], [-52.85, -13.25], [-52.75, -13.5], [-52.85, -13.75], [-52.75, -14.0], [-52.97, -14.53], [-53.5, -14.75], [-53.75, -14.65], [-54.0, -14.75], [-54.5, -14.54], [-55.0, -14.75], [-55.53, -14.53], [-55.68, -14.18], [-56.03, -14.03], [-56.25, -13.5], [-56.15, -13.25], [-56.25, -13.0], [-56.03, -12.47]]]]}, "2026-04-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-56.03, -12.47], [-55.68, -12.32], [-55.53, -11.97], [-55.18, -11.82], [-55.03, -11.47], [-54.68, -11.32], [-54.65, -11.25], [-54.68, -11.18], [-55.03, -11.03], [-55.25, -10.5], [-55.03, -9.97], [-54.5, -9.75], [-53.97, -9.97], [-53.82, -10.32], [-53.75, -10.35], [-53.5, -10.25], [-53.25, -10.35], [-53.0, -10.25], [-52.47, -10.47], [-52.25, -11.0], [-52.35, -11.25], [-52.25, -11.5], [-52.47, -12.03], [-52.82, -12.18], [-52.85, -12.25], [-52.75, -12.5], [-52.85, -12.75], [-52.75, -13.0], [-52.85, -13.25], [-52.75, -13.5], [-52.85, -13.75], [-52.75, -14.0], [-52.97, -14.53], [-53.32, -14.68], [-53.47, -15.03], [-54.0, -15.25], [-54.53, -15.03], [-54.7, -14.62], [-55.0, -14.75], [-55.53, -14.53], [-55.68, -14.18], [-56.03, -14.03], [-56.25, -13.5], [-56.15, -13.25], [-56.25, -13.0], [-56.03, -12.47]]]]}, "2026-04-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-56.03, -12.47], [-55.68, -12.32], [-55.53, -11.97], [-55.18, -11.82], [-55.03, -11.47], [-54.68, -11.32], [-54.65, -11.25], [-54.68, -11.18], [-55.03, -11.03], [-55.25, -10.5], [-55.03, -9.97], [-54.5, -9.75], [-53.97, -9.97], [-53.82, -10.32], [-53.75, -10.35], [-53.5, -10.25], [-53.25, -10.35], [-53.0, -10.25], [-52.47, -10.47], [-52.25, -11.0], [-52.47, -11.53], [-52.82, -11.68], [-52.85, -11.75], [-52.75, -12.0], [-52.85, -12.25], [-52.75, -12.5], [-52.85, -12.75], [-52.75, -13.0], [-52.85, -13.25], [-52.75, -13.5], [-52.85, -13.75], [-52.75, -14.0], [-52.97, -14.53], [-53.32, -14.68], [-53.47, -15.03], [-54.0, -15.25], [-54.53, -15.03], [-54.7, -14.62], [-55.0, -14.75], [-55.53, -14.53], [-55.68, -14.18], [-56.03, -14.03], [-56.25, -13.5], [-56.15, -13.25], [-56.25, -13.0], [-56.03, -12.47]]]]}, "2026-04-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-56.03, -12.47], [-55.68, -12.32], [-55.53, -11.97], [-55.0, -11.75], [-54.75, -11.85], [-54.68, -11.82], [-54.53, -11.47], [-54.0, -11.25], [-53.75, -11.35], [-53.5, -11.25], [-52.97, -11.47], [-52.75, -12.0], [-52.85, -12.25], [-52.75, -12.5], [-52.85, -12.75], [-52.75, -13.0], [-52.85, -13.25], [-52.75, -13.5], [-52.85, -13.75], [-52.75, -14.0], [-52.97, -14.53], [-53.32, -14.68], [-53.47, -15.03], [-54.0, -15.25], [-54.53, -15.03], [-54.7, -14.62], [-55.0, -14.75], [-55.53, -14.53], [-55.68, -14.18], [-56.03, -14.03], [-56.25, -13.5], [-56.15, -13.25], [-56.25, -13.0], [-56.03, -12.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.0637010266241873}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.602039488474368}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.67765296653465, 26.84851226806643, 26.744264766148206, 26.819321639449527, 26.93520660400395]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.950213368733728, 27.166057840983115, 27.02767715454104, 27.355978902180993, 27.34283599853518]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.4606226938486582, 1.6382727282548626, 1.5320407802980245, 1.6064692171299209, 1.708780230114155]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.6308723953098934, 1.882762799077227, 1.732165487086661, 1.977975870119053, 2.0637010266241873]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.2939141160926977, 1.4582633921914165, 1.378415307134869, 1.4382504756802816, 1.5081548867494292]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.4715123378546975, 1.683632877018775, 1.578278153327452, 1.8309263622125487, 1.8501601961185146]}}