{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-08-31 16:20:39.920259", "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-Aug-21_to_2026-Aug-23_235.5_-19.5"}, "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": 2026080001833}, "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": true}, "start_date": {"name": "Start date", "description": "First date on which grid points are under the influence of an event", "value": "August 21 2026"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 23 2026"}, "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": 163946.07318707622}, "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": []}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.Pacific-Ocean"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": []}, "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": ["South Pacific 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": -19.5}, "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": 235.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "235.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 230.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 238.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -22.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -16.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2026-08-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-130.25, -16.5], [-130.03, -15.97], [-129.5, -15.75], [-129.25, -15.85], [-129.0, -15.75], [-128.75, -15.85], [-128.5, -15.75], [-127.97, -15.97], [-127.82, -16.32], [-127.75, -16.35], [-127.68, -16.32], [-127.53, -15.97], [-127.0, -15.75], [-126.75, -15.85], [-126.5, -15.75], [-126.25, -15.85], [-126.0, -15.75], [-125.75, -15.85], [-125.5, -15.75], [-124.97, -15.97], [-124.75, -16.5], [-124.97, -17.03], [-125.32, -17.18], [-125.35, -17.25], [-125.32, -17.32], [-125.25, -17.35], [-125.0, -17.25], [-124.47, -17.47], [-124.32, -17.82], [-123.97, -17.97], [-123.75, -18.5], [-123.85, -18.75], [-123.82, -18.82], [-123.47, -18.97], [-123.32, -19.32], [-122.97, -19.47], [-122.75, -20.0], [-122.85, -20.25], [-122.82, -20.32], [-122.75, -20.35], [-122.5, -20.25], [-121.97, -20.47], [-121.82, -20.82], [-121.47, -20.97], [-121.25, -21.5], [-121.35, -21.75], [-121.32, -21.82], [-120.97, -21.97], [-120.75, -22.5], [-120.97, -23.03], [-121.5, -23.25], [-122.03, -23.03], [-122.18, -22.68], [-122.53, -22.53], [-122.68, -22.18], [-123.03, -22.03], [-123.18, -21.68], [-123.53, -21.53], [-123.68, -21.18], [-124.03, -21.03], [-124.18, -20.68], [-124.25, -20.65], [-124.32, -20.68], [-124.47, -21.03], [-125.0, -21.25], [-125.25, -21.15], [-125.5, -21.25], [-126.03, -21.03], [-126.18, -20.68], [-126.53, -20.53], [-126.68, -20.18], [-126.75, -20.15], [-127.0, -20.25], [-127.53, -20.03], [-127.68, -19.68], [-128.03, -19.53], [-128.25, -19.0], [-128.04, -18.5], [-128.18, -18.18], [-128.25, -18.15], [-128.5, -18.25], [-129.03, -18.03], [-129.18, -17.68], [-129.53, -17.53], [-129.68, -17.18], [-130.03, -17.03], [-130.25, -16.5]], [[-126.82, -18.82], [-126.75, -18.85], [-126.68, -18.82], [-126.65, -18.75], [-126.68, -18.68], [-126.75, -18.65], [-126.87, -18.7], [-126.82, -18.82]]]]}, "2026-08-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-130.25, -16.5], [-130.03, -15.97], [-129.5, -15.75], [-129.25, -15.85], [-129.0, -15.75], [-128.75, -15.85], [-128.5, -15.75], [-127.97, -15.97], [-127.82, -16.32], [-127.75, -16.35], [-127.68, -16.32], [-127.53, -15.97], [-127.0, -15.75], [-126.75, -15.85], [-126.5, -15.75], [-126.25, -15.85], [-126.0, -15.75], [-125.75, -15.85], [-125.5, -15.75], [-124.97, -15.97], [-124.75, -16.5], [-124.97, -17.03], [-125.32, -17.18], [-125.35, -17.25], [-125.32, -17.32], [-125.25, -17.35], [-125.0, -17.25], [-124.47, -17.47], [-124.32, -17.82], [-123.97, -17.97], [-123.75, -18.5], [-123.85, -18.75], [-123.82, -18.82], [-123.47, -18.97], [-123.32, -19.32], [-122.97, -19.47], [-122.75, -20.0], [-122.85, -20.25], [-122.82, -20.32], [-122.75, -20.35], [-122.5, -20.25], [-121.97, -20.47], [-121.82, -20.82], [-121.47, -20.97], [-121.25, -21.5], [-121.35, -21.75], [-121.32, -21.82], [-120.97, -21.97], [-120.75, -22.5], [-120.97, -23.03], [-121.5, -23.25], [-122.03, -23.03], [-122.18, -22.68], [-122.53, -22.53], [-122.68, -22.18], [-123.03, -22.03], [-123.18, -21.68], [-123.53, -21.53], [-123.68, -21.18], [-124.03, -21.03], [-124.18, -20.68], [-124.25, -20.65], [-124.32, -20.68], [-124.47, -21.03], [-125.0, -21.25], [-125.25, -21.15], [-125.5, -21.25], [-126.03, -21.03], [-126.18, -20.68], [-126.53, -20.53], [-126.68, -20.18], [-126.75, -20.15], [-127.0, -20.25], [-127.53, -20.03], [-127.68, -19.68], [-128.03, -19.53], [-128.25, -19.0], [-128.04, -18.5], [-128.18, -18.18], [-128.25, -18.15], [-128.5, -18.25], [-129.03, -18.03], [-129.18, -17.68], [-129.53, -17.53], [-129.68, -17.18], [-130.03, -17.03], [-130.25, -16.5]], [[-126.82, -18.82], [-126.75, -18.85], [-126.68, -18.82], [-126.65, -18.75], [-126.68, -18.68], [-126.75, -18.65], [-126.87, -18.7], [-126.82, -18.82]]]]}, "2026-08-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-130.25, -16.5], [-130.03, -15.97], [-129.5, -15.75], [-129.25, -15.85], [-129.0, -15.75], [-128.75, -15.85], [-128.5, -15.75], [-127.97, -15.97], [-127.82, -16.32], [-127.75, -16.35], [-127.68, -16.32], [-127.53, -15.97], [-127.0, -15.75], [-126.75, -15.85], [-126.5, -15.75], [-126.25, -15.85], [-126.0, -15.75], [-125.75, -15.85], [-125.5, -15.75], [-124.97, -15.97], [-124.75, -16.5], [-124.97, -17.03], [-125.32, -17.18], [-125.35, -17.25], [-125.32, -17.32], [-125.25, -17.35], [-125.0, -17.25], [-124.47, -17.47], [-124.32, -17.82], [-123.97, -17.97], [-123.75, -18.5], [-123.85, -18.75], [-123.82, -18.82], [-123.47, -18.97], [-123.32, -19.32], [-122.97, -19.47], [-122.75, -20.0], [-122.85, -20.25], [-122.82, -20.32], [-122.75, -20.35], [-122.5, -20.25], [-121.97, -20.47], [-121.82, -20.82], [-121.47, -20.97], [-121.25, -21.5], [-121.35, -21.75], [-121.32, -21.82], [-120.97, -21.97], [-120.75, -22.5], [-120.97, -23.03], [-121.5, -23.25], [-122.03, -23.03], [-122.18, -22.68], [-122.53, -22.53], [-122.68, -22.18], [-123.03, -22.03], [-123.18, -21.68], [-123.53, -21.53], [-123.68, -21.18], [-124.03, -21.03], [-124.18, -20.68], [-124.25, -20.65], [-124.32, -20.68], [-124.47, -21.03], [-125.0, -21.25], [-125.25, -21.15], [-125.5, -21.25], [-126.03, -21.03], [-126.18, -20.68], [-126.53, -20.53], [-126.68, -20.18], [-126.75, -20.15], [-127.0, -20.25], [-127.53, -20.03], [-127.68, -19.68], [-128.03, -19.53], [-128.25, -19.0], [-128.04, -18.5], [-128.18, -18.18], [-128.25, -18.15], [-128.5, -18.25], [-129.03, -18.03], [-129.18, -17.68], [-129.53, -17.53], [-129.68, -17.18], [-130.03, -17.03], [-130.25, -16.5]], [[-126.82, -18.82], [-126.75, -18.85], [-126.68, -18.82], [-126.65, -18.75], [-126.68, -18.68], [-126.75, -18.65], [-126.87, -18.7], [-126.82, -18.82]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 1.6549981131163918}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 0.9546500966594196}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [24.202022080194354, 24.40515089489162, 24.317451731363974]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [24.87402496337893, 24.93741378784182, 24.844347890218103]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [0.8401373526540975, 1.0477260494917064, 0.9760868878324546]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.1831259647841534, 1.6549981131163918, 1.3550039547113215]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4012867154159452, 1.7144204020565608, 1.5790259259383042]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6124699529084505, 2.115702542847851, 2.007692328712591]}}