{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:19:38.916854", "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": "2020-Apr-13_to_2020-Apr-16_93.0_40.5"}, "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": 2020040001751}, "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": "April 13 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 16 2020"}, "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": 93036.19482105295}, "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.C.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": 40.5}, "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": 93.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "93.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 86.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 94.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 37.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 41.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2020-04-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[86.47, 37.47], [86.25, 38.0], [86.47, 38.53], [87.0, 38.75], [87.25, 38.65], [87.32, 38.68], [87.47, 39.03], [88.0, 39.25], [88.25, 39.15], [88.32, 39.18], [88.47, 39.53], [89.0, 39.75], [89.25, 39.65], [89.5, 39.75], [89.75, 39.65], [90.0, 39.75], [90.25, 39.65], [90.32, 39.68], [90.47, 40.03], [90.88, 40.2], [90.75, 40.5], [90.97, 41.03], [91.5, 41.25], [91.75, 41.15], [91.82, 41.18], [91.97, 41.53], [92.32, 41.68], [92.47, 42.03], [93.0, 42.25], [93.53, 42.03], [93.68, 41.68], [94.03, 41.53], [94.18, 41.18], [94.53, 41.03], [94.75, 40.5], [94.53, 39.97], [94.0, 39.75], [93.75, 39.85], [93.5, 39.75], [93.25, 39.85], [93.0, 39.75], [92.75, 39.85], [92.68, 39.82], [92.65, 39.75], [92.75, 39.5], [92.65, 39.25], [92.75, 39.0], [92.54, 38.5], [92.75, 38.0], [92.53, 37.47], [92.0, 37.25], [91.47, 37.47], [91.32, 37.82], [91.25, 37.85], [91.18, 37.82], [91.03, 37.47], [90.5, 37.25], [89.97, 37.47], [89.82, 37.82], [89.75, 37.85], [89.68, 37.82], [89.53, 37.47], [89.0, 37.25], [88.75, 37.35], [88.5, 37.25], [88.0, 37.46], [87.5, 37.25], [87.25, 37.35], [87.0, 37.25], [86.47, 37.47]]]]}, "2020-04-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[86.47, 37.47], [86.25, 38.0], [86.47, 38.53], [87.0, 38.75], [87.25, 38.65], [87.32, 38.68], [87.47, 39.03], [88.0, 39.25], [88.25, 39.15], [88.32, 39.18], [88.47, 39.53], [89.0, 39.75], [89.25, 39.65], [89.5, 39.75], [89.75, 39.65], [89.88, 39.7], [89.75, 40.0], [89.97, 40.53], [90.5, 40.75], [90.8, 40.63], [90.97, 41.03], [91.5, 41.25], [91.75, 41.15], [91.82, 41.18], [91.97, 41.53], [92.32, 41.68], [92.47, 42.03], [93.0, 42.25], [93.25, 42.15], [93.5, 42.25], [93.75, 42.15], [94.0, 42.25], [94.25, 42.15], [94.5, 42.25], [95.03, 42.03], [95.25, 41.5], [95.03, 40.97], [94.63, 40.8], [94.75, 40.5], [94.53, 39.97], [94.0, 39.75], [93.75, 39.85], [93.5, 39.75], [93.25, 39.85], [93.0, 39.75], [92.75, 39.85], [92.68, 39.82], [92.65, 39.75], [92.75, 39.5], [92.65, 39.25], [92.75, 39.0], [92.54, 38.5], [92.75, 38.0], [92.53, 37.47], [92.0, 37.25], [91.47, 37.47], [91.32, 37.82], [91.25, 37.85], [91.18, 37.82], [91.03, 37.47], [90.5, 37.25], [89.97, 37.47], [89.82, 37.82], [89.75, 37.85], [89.68, 37.82], [89.53, 37.47], [89.0, 37.25], [88.75, 37.35], [88.5, 37.25], [88.0, 37.46], [87.5, 37.25], [87.25, 37.35], [87.0, 37.25], [86.47, 37.47]]]]}, "2020-04-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[86.47, 37.47], [86.25, 38.0], [86.47, 38.53], [87.0, 38.75], [87.25, 38.65], [87.32, 38.68], [87.47, 39.03], [88.0, 39.25], [88.25, 39.15], [88.32, 39.18], [88.47, 39.53], [89.0, 39.75], [89.25, 39.65], [89.5, 39.75], [89.75, 39.65], [89.88, 39.7], [89.75, 40.0], [89.97, 40.53], [90.5, 40.75], [90.8, 40.63], [90.97, 41.03], [91.5, 41.25], [91.75, 41.15], [91.82, 41.18], [91.97, 41.53], [92.32, 41.68], [92.47, 42.03], [93.0, 42.25], [93.25, 42.15], [93.5, 42.25], [93.75, 42.15], [94.0, 42.25], [94.25, 42.15], [94.5, 42.25], [95.03, 42.03], [95.25, 41.5], [95.03, 40.97], [94.63, 40.8], [94.75, 40.5], [94.53, 39.97], [94.0, 39.75], [93.75, 39.85], [93.5, 39.75], [93.25, 39.85], [93.0, 39.75], [92.75, 39.85], [92.68, 39.82], [92.65, 39.75], [92.75, 39.5], [92.65, 39.25], [92.75, 39.0], [92.54, 38.5], [92.75, 38.0], [92.53, 37.47], [92.0, 37.25], [91.47, 37.47], [91.32, 37.82], [91.25, 37.85], [91.18, 37.82], [91.03, 37.47], [90.5, 37.25], [89.97, 37.47], [89.82, 37.82], [89.75, 37.85], [89.68, 37.82], [89.53, 37.47], [89.0, 37.25], [88.75, 37.35], [88.5, 37.25], [88.0, 37.46], [87.5, 37.25], [87.25, 37.35], [87.0, 37.25], [86.47, 37.47]]]]}, "2020-04-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[89.97, 39.47], [89.75, 40.0], [89.97, 40.53], [90.5, 40.75], [91.03, 40.53], [91.25, 40.0], [91.03, 39.47], [90.5, 39.25], [89.97, 39.47]]], [[[91.75, 40.5], [91.97, 41.03], [92.5, 41.25], [92.75, 41.15], [92.88, 41.2], [92.75, 41.5], [92.97, 42.03], [93.5, 42.25], [93.75, 42.15], [94.0, 42.25], [94.25, 42.15], [94.5, 42.25], [95.03, 42.03], [95.25, 41.5], [95.03, 40.97], [94.5, 40.75], [94.25, 40.85], [94.0, 40.75], [93.75, 40.85], [93.63, 40.8], [93.75, 40.5], [93.53, 39.97], [93.0, 39.75], [92.75, 39.85], [92.5, 39.75], [91.97, 39.97], [91.75, 40.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 8.411976388642756}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 6.248634973426404}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [12.062221013539556, 14.31996125896336, 14.330075369830183, 20.409716461835558]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [21.96975282652545, 24.82609349330454, 24.079048195285168, 22.765080986682563]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [5.4206457328889766, 6.8064241483805015, 6.567212782709971, 5.382186812349876]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [6.587285122758942, 8.17491840318769, 8.411976388642756, 6.080937961110692]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4273037965274273, 1.755994875560849, 1.7262951858908082, 1.28612398023417]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6691858280117928, 2.052662335605407, 2.259063855360654, 1.3998242281944406]}}