{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:56:20.095228", "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-Nov-16_to_2023-Nov-21_97.0_42.5"}, "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": 2023110001575}, "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": "November 16 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 21 2023"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 68782.23119870981}, "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", "Mongolia"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Asia", "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": 42.5}, "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": 97.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "97.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 96.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 99.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 41.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 43.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[97.5, 43.75], [97.75, 43.65], [98.0, 43.75], [98.25, 43.65], [98.5, 43.75], [99.03, 43.53], [99.18, 43.18], [99.25, 43.15], [99.5, 43.25], [100.03, 43.03], [100.25, 42.5], [100.15, 42.25], [100.25, 42.0], [100.03, 41.47], [99.63, 41.3], [99.75, 41.0], [99.53, 40.47], [99.0, 40.25], [98.75, 40.35], [98.5, 40.25], [98.0, 40.46], [97.5, 40.25], [97.25, 40.35], [97.0, 40.25], [96.47, 40.47], [96.32, 40.82], [95.97, 40.97], [95.82, 41.32], [95.47, 41.47], [95.25, 42.0], [95.35, 42.25], [95.25, 42.5], [95.35, 42.75], [95.25, 43.0], [95.35, 43.25], [95.25, 43.5], [95.47, 44.03], [96.0, 44.25], [96.53, 44.03], [96.7, 43.63], [97.0, 43.75], [97.25, 43.65], [97.5, 43.75]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.C.Asia"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2023-11-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[96.25, 42.5], [96.47, 43.03], [97.0, 43.25], [97.53, 43.03], [97.75, 42.5], [97.65, 42.25], [97.68, 42.18], [98.03, 42.03], [98.25, 41.5], [98.03, 40.97], [97.5, 40.75], [96.97, 40.97], [96.82, 41.32], [96.47, 41.47], [96.25, 42.0], [96.35, 42.25], [96.25, 42.5]]]]}, "2023-11-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[96.25, 42.0], [96.35, 42.25], [96.25, 42.5], [96.47, 43.03], [96.82, 43.18], [96.97, 43.53], [97.5, 43.75], [98.03, 43.53], [98.25, 43.0], [98.15, 42.75], [98.18, 42.68], [98.25, 42.65], [98.32, 42.68], [98.47, 43.03], [99.0, 43.25], [99.53, 43.03], [99.68, 42.68], [100.03, 42.53], [100.25, 42.0], [100.03, 41.47], [99.63, 41.3], [99.75, 41.0], [99.53, 40.47], [99.0, 40.25], [98.75, 40.35], [98.5, 40.25], [97.97, 40.47], [97.8, 40.88], [97.5, 40.75], [97.25, 40.85], [97.0, 40.75], [96.47, 40.97], [96.25, 41.5], [96.35, 41.75], [96.25, 42.0]]]]}, "2023-11-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[95.25, 42.5], [95.35, 42.75], [95.25, 43.0], [95.35, 43.25], [95.25, 43.5], [95.47, 44.03], [96.0, 44.25], [96.53, 44.03], [96.7, 43.63], [97.0, 43.75], [97.25, 43.65], [97.5, 43.75], [97.75, 43.65], [98.0, 43.75], [98.25, 43.65], [98.5, 43.75], [99.03, 43.53], [99.18, 43.18], [99.25, 43.15], [99.5, 43.25], [100.03, 43.03], [100.25, 42.5], [100.15, 42.25], [100.25, 42.0], [100.03, 41.47], [99.63, 41.3], [99.75, 41.0], [99.53, 40.47], [99.0, 40.25], [98.75, 40.35], [98.5, 40.25], [98.0, 40.46], [97.5, 40.25], [97.25, 40.35], [97.0, 40.25], [96.47, 40.47], [96.32, 40.82], [95.97, 40.97], [95.82, 41.32], [95.47, 41.47], [95.25, 42.0], [95.35, 42.25], [95.25, 42.5]]]]}, "2023-11-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[95.25, 42.5], [95.35, 42.75], [95.25, 43.0], [95.35, 43.25], [95.25, 43.5], [95.47, 44.03], [96.0, 44.25], [96.53, 44.03], [96.7, 43.63], [97.0, 43.75], [97.25, 43.65], [97.5, 43.75], [97.75, 43.65], [98.0, 43.75], [98.25, 43.65], [98.5, 43.75], [99.03, 43.53], [99.18, 43.18], [99.25, 43.15], [99.5, 43.25], [100.03, 43.03], [100.25, 42.5], [100.15, 42.25], [100.25, 42.0], [100.03, 41.47], [99.63, 41.3], [99.75, 41.0], [99.53, 40.47], [99.0, 40.25], [98.75, 40.35], [98.5, 40.25], [98.0, 40.46], [97.5, 40.25], [97.25, 40.35], [97.0, 40.25], [96.47, 40.47], [96.32, 40.82], [95.97, 40.97], [95.82, 41.32], [95.47, 41.47], [95.25, 42.0], [95.35, 42.25], [95.25, 42.5]]]]}, "2023-11-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[95.25, 42.5], [95.35, 42.75], [95.25, 43.0], [95.35, 43.25], [95.25, 43.5], [95.47, 44.03], [96.0, 44.25], [96.53, 44.03], [96.7, 43.63], [97.0, 43.75], [97.25, 43.65], [97.5, 43.75], [97.75, 43.65], [98.0, 43.75], [98.25, 43.65], [98.5, 43.75], [99.03, 43.53], [99.18, 43.18], [99.25, 43.15], [99.5, 43.25], [100.03, 43.03], [100.25, 42.5], [100.15, 42.25], [100.25, 42.0], [100.03, 41.47], [99.63, 41.3], [99.75, 41.0], [99.53, 40.47], [99.0, 40.25], [98.75, 40.35], [98.5, 40.25], [98.0, 40.46], [97.5, 40.25], [97.25, 40.35], [97.0, 40.25], [96.47, 40.47], [96.32, 40.82], [95.97, 40.97], [95.82, 41.32], [95.47, 41.47], [95.25, 42.0], [95.35, 42.25], [95.25, 42.5]]]]}, "2023-11-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[98.0, 40.75], [97.47, 40.97], [97.25, 41.5], [97.47, 42.03], [98.0, 42.25], [98.25, 42.15], [98.5, 42.25], [99.03, 42.03], [99.25, 41.5], [99.03, 40.97], [98.5, 40.75], [98.25, 40.85], [98.0, 40.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 8.381824263993849}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 5.962924553564008}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [1.8104532044756638, 2.3022533146361184, 2.0968477846370774, 2.0093308059072115, 2.934569658394423, 0.6185872134119563]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [2.5069976834582235, 4.441890658858597, 3.871557696338016, 3.647328236887745, 6.894194956484455, 1.0452469775649433]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [5.320091242393839, 5.490632421248803, 5.706046851960916, 5.734934387243677, 6.820820819632654, 4.380915772744316]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [5.391414633747615, 6.368170829561336, 7.504517235070352, 6.992422720277091, 8.381824263993849, 4.605428707287103]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.2587956739794892, 1.3427850407013442, 1.40663608085351, 1.44682519662524, 1.7584305710758672, 1.1247837565106065]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.321358749930677, 1.4927362252804854, 1.7022603789462496, 1.7148233433202413, 2.256310458183092, 1.2119942594130038]}}