{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:59:07.971002", "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-Mar-23_to_2026-Mar-25_123.5_49.5"}, "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": 2026030002073}, "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 23 2026"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 25 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": 73061.22944915491}, "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": ["China"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Siberia"]}, "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": []}, "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": 49.5}, "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": 123.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "123.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 121.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 125.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 45.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 49.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2026-03-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[121.47, 47.53], [121.82, 47.68], [121.85, 47.75], [121.75, 48.0], [121.85, 48.25], [121.75, 48.5], [121.97, 49.03], [122.32, 49.18], [122.47, 49.53], [122.82, 49.68], [122.97, 50.03], [123.5, 50.25], [124.03, 50.03], [124.18, 49.68], [124.53, 49.53], [124.75, 49.0], [124.65, 48.75], [124.68, 48.68], [124.75, 48.65], [125.0, 48.75], [125.53, 48.53], [125.75, 48.0], [125.65, 47.75], [125.75, 47.5], [125.65, 47.25], [125.75, 47.0], [125.53, 46.47], [125.18, 46.32], [125.03, 45.97], [124.68, 45.82], [124.53, 45.47], [124.0, 45.25], [123.75, 45.35], [123.5, 45.25], [122.97, 45.47], [122.82, 45.82], [122.75, 45.85], [122.68, 45.82], [122.53, 45.47], [122.0, 45.25], [121.47, 45.47], [121.25, 46.0], [121.46, 46.5], [121.25, 47.0], [121.47, 47.53]]]]}, "2026-03-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[121.47, 47.53], [121.82, 47.68], [121.85, 47.75], [121.75, 48.0], [121.85, 48.25], [121.75, 48.5], [121.97, 49.03], [122.32, 49.18], [122.47, 49.53], [122.82, 49.68], [122.97, 50.03], [123.5, 50.25], [124.03, 50.03], [124.18, 49.68], [124.53, 49.53], [124.75, 49.0], [124.65, 48.75], [124.68, 48.68], [124.75, 48.65], [125.0, 48.75], [125.53, 48.53], [125.75, 48.0], [125.65, 47.75], [125.75, 47.5], [125.65, 47.25], [125.75, 47.0], [125.53, 46.47], [125.18, 46.32], [125.03, 45.97], [124.68, 45.82], [124.53, 45.47], [124.0, 45.25], [123.75, 45.35], [123.5, 45.25], [122.97, 45.47], [122.82, 45.82], [122.75, 45.85], [122.68, 45.82], [122.53, 45.47], [122.0, 45.25], [121.47, 45.47], [121.25, 46.0], [121.46, 46.5], [121.25, 47.0], [121.47, 47.53]]]]}, "2026-03-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[121.47, 47.53], [121.82, 47.68], [121.85, 47.75], [121.75, 48.0], [121.85, 48.25], [121.75, 48.5], [121.97, 49.03], [122.32, 49.18], [122.47, 49.53], [122.82, 49.68], [122.97, 50.03], [123.5, 50.25], [124.03, 50.03], [124.18, 49.68], [124.53, 49.53], [124.75, 49.0], [124.65, 48.75], [124.68, 48.68], [124.75, 48.65], [125.0, 48.75], [125.53, 48.53], [125.75, 48.0], [125.65, 47.75], [125.75, 47.5], [125.65, 47.25], [125.75, 47.0], [125.53, 46.47], [125.18, 46.32], [125.03, 45.97], [124.68, 45.82], [124.53, 45.47], [124.0, 45.25], [123.75, 45.35], [123.5, 45.25], [122.97, 45.47], [122.82, 45.82], [122.75, 45.85], [122.68, 45.82], [122.53, 45.47], [122.0, 45.25], [121.47, 45.47], [121.25, 46.0], [121.46, 46.5], [121.25, 47.0], [121.47, 47.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 9.190858364367273}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 7.053160932467701}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [5.348669469924232, 7.3783788045248, 6.148773992629344]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [6.669695790608728, 9.970257059733115, 7.752254740397177]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [6.442107484394873, 8.123009377052716, 6.594365935955507]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [8.150849600266895, 9.190858364367273, 7.510315528434944]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4613055007993483, 1.848560896596159, 1.5007175717404917]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.7221066211538196, 2.125674549054791, 1.7155001352604196]}}