{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:09:06.182013", "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": "2017-Sep-29_to_2017-Oct-01_101.0_36.0"}, "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": 2017090002877}, "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": "September 29 2017"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 01 2017"}, "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": 57513.0882715616}, "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.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": []}, "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": 36.0}, "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": 101.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "101.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 99.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 103.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 34.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 37.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2017-09-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[99.25, 35.5], [99.47, 36.03], [100.0, 36.25], [100.25, 36.15], [100.32, 36.18], [100.35, 36.25], [100.32, 36.32], [99.97, 36.47], [99.75, 37.0], [99.97, 37.53], [100.5, 37.75], [100.75, 37.65], [101.0, 37.75], [101.25, 37.65], [101.5, 37.75], [101.75, 37.65], [102.0, 37.75], [102.53, 37.53], [102.68, 37.18], [102.75, 37.15], [103.0, 37.25], [103.53, 37.03], [103.75, 36.5], [103.65, 36.25], [103.75, 36.0], [103.65, 35.75], [103.75, 35.5], [103.53, 34.97], [103.0, 34.75], [102.75, 34.85], [102.68, 34.82], [102.53, 34.47], [102.0, 34.25], [101.5, 34.46], [101.0, 34.25], [100.75, 34.35], [100.5, 34.25], [99.97, 34.47], [99.82, 34.82], [99.47, 34.97], [99.25, 35.5]]]]}, "2017-09-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[99.25, 35.5], [99.47, 36.03], [100.0, 36.25], [100.25, 36.15], [100.32, 36.18], [100.35, 36.25], [100.32, 36.32], [99.97, 36.47], [99.75, 37.0], [99.97, 37.53], [100.5, 37.75], [100.75, 37.65], [101.0, 37.75], [101.25, 37.65], [101.5, 37.75], [101.75, 37.65], [102.0, 37.75], [102.53, 37.53], [102.68, 37.18], [102.75, 37.15], [103.0, 37.25], [103.53, 37.03], [103.75, 36.5], [103.65, 36.25], [103.75, 36.0], [103.65, 35.75], [103.75, 35.5], [103.53, 34.97], [103.0, 34.75], [102.75, 34.85], [102.68, 34.82], [102.53, 34.47], [102.0, 34.25], [101.5, 34.46], [101.0, 34.25], [100.75, 34.35], [100.5, 34.25], [99.97, 34.47], [99.82, 34.82], [99.47, 34.97], [99.25, 35.5]]]]}, "2017-10-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[99.25, 35.5], [99.47, 36.03], [100.0, 36.25], [100.25, 36.15], [100.32, 36.18], [100.35, 36.25], [100.32, 36.32], [99.97, 36.47], [99.75, 37.0], [99.97, 37.53], [100.5, 37.75], [100.75, 37.65], [101.0, 37.75], [101.25, 37.65], [101.5, 37.75], [101.75, 37.65], [102.0, 37.75], [102.53, 37.53], [102.68, 37.18], [102.75, 37.15], [103.0, 37.25], [103.53, 37.03], [103.75, 36.5], [103.65, 36.25], [103.75, 36.0], [103.65, 35.75], [103.75, 35.5], [103.53, 34.97], [103.0, 34.75], [102.75, 34.85], [102.68, 34.82], [102.53, 34.47], [102.0, 34.25], [101.5, 34.46], [101.0, 34.25], [100.75, 34.35], [100.5, 34.25], [99.97, 34.47], [99.82, 34.82], [99.47, 34.97], [99.25, 35.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 5.428157434999321}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.8625714175535117}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [10.256324375373481, 10.439941081939025, 10.75384085604054]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [16.35302693268028, 15.660552189602697, 15.737333924899247]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.3831204781704747, 3.838836448863061, 4.3657573256269995]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.044960104101733, 5.207296142503367, 5.428157434999321]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4877474932018808, 1.6718857948222332, 1.8452857163076248]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.7409386255538577, 2.0830658192829272, 2.1607483761608828]}}