{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:35:59.869847", "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-Jul-07_to_2023-Jul-10_128.5_32.0"}, "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": 2023070001431}, "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": "July 07 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 10 2023"}, "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": 52665.74858503509}, "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": ["Japan"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Asia"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Asia"]}, "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": ["Eastern China Sea"]}, "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": 32.0}, "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": 128.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "128.5\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": 130.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 30.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 32.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2023-07-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[127.35, 31.75], [127.25, 32.0], [127.35, 32.25], [127.25, 32.5], [127.47, 33.03], [128.0, 33.25], [128.25, 33.15], [128.5, 33.25], [128.75, 33.15], [129.0, 33.25], [129.25, 33.15], [129.5, 33.25], [130.03, 33.03], [130.25, 32.5], [130.15, 32.25], [130.18, 32.18], [130.25, 32.15], [130.5, 32.25], [131.03, 32.03], [131.25, 31.5], [131.15, 31.25], [131.25, 31.0], [131.15, 30.75], [131.25, 30.5], [131.03, 29.97], [130.5, 29.75], [130.25, 29.85], [130.0, 29.75], [129.75, 29.85], [129.5, 29.75], [128.97, 29.97], [128.75, 30.5], [128.88, 30.8], [128.75, 30.85], [128.68, 30.82], [128.53, 30.47], [128.0, 30.25], [127.47, 30.47], [127.25, 31.0], [127.35, 31.25], [127.25, 31.5], [127.35, 31.75]]]]}, "2023-07-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[127.35, 31.75], [127.25, 32.0], [127.35, 32.25], [127.25, 32.5], [127.47, 33.03], [128.0, 33.25], [128.25, 33.15], [128.5, 33.25], [128.75, 33.15], [129.0, 33.25], [129.25, 33.15], [129.5, 33.25], [130.03, 33.03], [130.25, 32.5], [130.15, 32.25], [130.18, 32.18], [130.25, 32.15], [130.5, 32.25], [131.03, 32.03], [131.25, 31.5], [131.15, 31.25], [131.25, 31.0], [131.15, 30.75], [131.25, 30.5], [131.03, 29.97], [130.5, 29.75], [130.25, 29.85], [130.0, 29.75], [129.75, 29.85], [129.5, 29.75], [128.97, 29.97], [128.75, 30.5], [128.88, 30.8], [128.75, 30.85], [128.68, 30.82], [128.53, 30.47], [128.0, 30.25], [127.47, 30.47], [127.25, 31.0], [127.35, 31.25], [127.25, 31.5], [127.35, 31.75]]]]}, "2023-07-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[127.35, 31.75], [127.25, 32.0], [127.35, 32.25], [127.25, 32.5], [127.47, 33.03], [128.0, 33.25], [128.25, 33.15], [128.5, 33.25], [128.75, 33.15], [129.0, 33.25], [129.25, 33.15], [129.5, 33.25], [130.03, 33.03], [130.25, 32.5], [130.15, 32.25], [130.18, 32.18], [130.25, 32.15], [130.5, 32.25], [131.03, 32.03], [131.25, 31.5], [131.15, 31.25], [131.25, 31.0], [131.15, 30.75], [131.25, 30.5], [131.03, 29.97], [130.5, 29.75], [130.25, 29.85], [130.0, 29.75], [129.75, 29.85], [129.5, 29.75], [128.97, 29.97], [128.75, 30.5], [128.88, 30.8], [128.75, 30.85], [128.68, 30.82], [128.53, 30.47], [128.0, 30.25], [127.47, 30.47], [127.25, 31.0], [127.35, 31.25], [127.25, 31.5], [127.35, 31.75]]]]}, "2023-07-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[127.97, 33.03], [128.5, 33.25], [129.03, 33.03], [129.18, 32.68], [129.25, 32.65], [129.5, 32.75], [130.03, 32.53], [130.18, 32.18], [130.53, 32.03], [130.68, 31.68], [131.03, 31.53], [131.25, 31.0], [131.15, 30.75], [131.25, 30.5], [131.03, 29.97], [130.5, 29.75], [130.0, 29.96], [129.5, 29.75], [128.97, 29.97], [128.75, 30.5], [128.88, 30.8], [128.47, 30.97], [128.32, 31.32], [127.97, 31.47], [127.75, 32.0], [127.85, 32.25], [127.75, 32.5], [127.97, 33.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.497334212525004}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.693036521213067}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.765332679355026, 27.699225557359966, 27.69280944909235, 27.607537166367933]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [28.914502162862675, 29.240754823054658, 28.79241730302016, 28.31231110692306]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.8721226782959008, 1.7174106756138456, 1.6157095621046267, 1.440769816462722]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.30405903302011, 2.497334212525004, 1.960805537026431, 1.8307066694217156]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5360803797899614, 1.4126543965331408, 1.340200301804108, 1.2523149158013005]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.8088256388300337, 1.6235370216922322, 1.4869253425831253, 1.34400929002724]}}