{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:19:25.796565", "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": "2019-Mar-17_to_2019-Mar-22_116.5_18.5"}, "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": 2019030002024}, "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 17 2019"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 22 2019"}, "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": 211673.2915796903}, "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", "S.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": ["South 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": 18.5}, "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": 116.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "116.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 109.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 118.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 16.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 22.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2019-03-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[116.5, 19.75], [116.75, 19.65], [117.0, 19.75], [117.53, 19.53], [117.75, 19.0], [117.53, 18.47], [117.18, 18.32], [117.03, 17.97], [116.5, 17.75], [116.25, 17.85], [116.0, 17.75], [115.47, 17.97], [115.25, 18.5], [115.47, 19.03], [115.82, 19.18], [115.97, 19.53], [116.5, 19.75]]]]}, "2019-03-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[116.5, 19.75], [116.75, 19.65], [117.0, 19.75], [117.53, 19.53], [117.75, 19.0], [117.53, 18.47], [117.18, 18.32], [117.03, 17.97], [116.5, 17.75], [116.25, 17.85], [116.0, 17.75], [115.47, 17.97], [115.25, 18.5], [115.47, 19.03], [115.82, 19.18], [115.97, 19.53], [116.5, 19.75]]]]}, "2019-03-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[115.97, 20.03], [116.5, 20.25], [116.75, 20.15], [117.0, 20.25], [117.53, 20.03], [117.75, 19.5], [117.65, 19.25], [117.75, 19.0], [117.53, 18.47], [117.18, 18.32], [117.03, 17.97], [116.5, 17.75], [116.25, 17.85], [116.0, 17.75], [115.75, 17.85], [115.5, 17.75], [114.97, 17.97], [114.75, 18.5], [114.97, 19.03], [115.32, 19.18], [115.47, 19.53], [115.82, 19.68], [115.97, 20.03]]], [[[111.25, 21.65], [111.5, 21.75], [112.03, 21.53], [112.25, 21.0], [112.03, 20.47], [111.68, 20.32], [111.53, 19.97], [111.0, 19.75], [110.47, 19.97], [110.25, 20.5], [110.35, 20.75], [110.25, 21.0], [110.47, 21.53], [111.0, 21.75], [111.25, 21.65]]], [[[113.75, 23.15], [114.0, 23.25], [114.25, 23.15], [114.5, 23.25], [115.03, 23.03], [115.18, 22.68], [115.25, 22.65], [115.5, 22.75], [116.03, 22.53], [116.25, 22.0], [116.15, 21.75], [116.25, 21.5], [116.03, 20.97], [115.5, 20.75], [115.25, 20.85], [115.0, 20.75], [114.47, 20.97], [114.32, 21.32], [114.25, 21.35], [114.18, 21.32], [114.03, 20.97], [113.5, 20.75], [112.97, 20.97], [112.75, 21.5], [112.96, 22.0], [112.75, 22.5], [112.97, 23.03], [113.5, 23.25], [113.75, 23.15]]]]}, "2019-03-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[109.75, 21.0], [109.97, 21.53], [110.5, 21.75], [110.75, 21.65], [110.82, 21.68], [110.97, 22.03], [111.5, 22.25], [111.75, 22.15], [112.0, 22.25], [112.25, 22.15], [112.32, 22.18], [112.47, 22.53], [112.82, 22.68], [112.97, 23.03], [113.5, 23.25], [113.75, 23.15], [114.0, 23.25], [114.25, 23.15], [114.5, 23.25], [114.75, 23.15], [115.0, 23.25], [115.53, 23.03], [115.68, 22.68], [115.75, 22.65], [116.0, 22.75], [116.53, 22.53], [116.68, 22.18], [116.75, 22.15], [117.0, 22.25], [117.53, 22.03], [117.75, 21.5], [117.53, 20.97], [117.18, 20.82], [117.07, 20.57], [117.5, 20.75], [118.03, 20.53], [118.25, 20.0], [118.15, 19.75], [118.25, 19.5], [118.03, 18.97], [117.68, 18.82], [117.65, 18.75], [117.75, 18.5], [117.53, 17.97], [117.13, 17.8], [117.18, 17.68], [117.25, 17.65], [117.5, 17.75], [117.75, 17.65], [118.0, 17.75], [118.53, 17.53], [118.75, 17.0], [118.65, 16.75], [118.75, 16.5], [118.53, 15.97], [118.0, 15.75], [117.47, 15.97], [117.32, 16.32], [117.25, 16.35], [117.0, 16.25], [116.75, 16.35], [116.5, 16.25], [115.97, 16.47], [115.82, 16.82], [115.47, 16.97], [115.32, 17.32], [114.97, 17.47], [114.82, 17.82], [114.75, 17.85], [114.5, 17.75], [113.97, 17.97], [113.75, 18.5], [113.85, 18.75], [113.82, 18.82], [113.47, 18.97], [113.32, 19.32], [112.97, 19.47], [112.75, 20.0], [112.85, 20.25], [112.82, 20.32], [112.75, 20.35], [112.68, 20.32], [112.53, 19.97], [112.0, 19.75], [111.75, 19.85], [111.5, 19.75], [111.25, 19.85], [111.18, 19.82], [111.03, 19.47], [110.5, 19.25], [110.25, 19.35], [110.0, 19.25], [109.47, 19.47], [109.25, 20.0], [109.47, 20.53], [109.82, 20.68], [109.85, 20.75], [109.75, 21.0]], [[114.75, 19.65], [115.0, 19.75], [115.25, 19.65], [115.32, 19.68], [115.46, 20.0], [115.32, 20.32], [115.25, 20.35], [115.0, 20.25], [114.7, 20.38], [114.65, 20.25], [114.75, 20.0], [114.65, 19.75], [114.68, 19.68], [114.75, 19.65]], [[116.68, 20.32], [116.63, 20.2], [116.75, 20.15], [116.82, 20.18], [116.93, 20.43], [116.68, 20.32]]]]}, "2019-03-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[109.75, 21.0], [109.97, 21.53], [110.5, 21.75], [110.75, 21.65], [110.82, 21.68], [110.97, 22.03], [111.5, 22.25], [111.75, 22.15], [112.0, 22.25], [112.25, 22.15], [112.32, 22.18], [112.47, 22.53], [112.82, 22.68], [112.97, 23.03], [113.5, 23.25], [113.75, 23.15], [114.0, 23.25], [114.25, 23.15], [114.5, 23.25], [114.75, 23.15], [115.0, 23.25], [115.53, 23.03], [115.68, 22.68], [115.75, 22.65], [116.0, 22.75], [116.53, 22.53], [116.68, 22.18], [116.75, 22.15], [117.0, 22.25], [117.53, 22.03], [117.75, 21.5], [117.53, 20.97], [117.18, 20.82], [117.07, 20.57], [117.5, 20.75], [118.03, 20.53], [118.25, 20.0], [118.15, 19.75], [118.25, 19.5], [118.03, 18.97], [117.68, 18.82], [117.65, 18.75], [117.75, 18.5], [117.53, 17.97], [117.13, 17.8], [117.18, 17.68], [117.25, 17.65], [117.5, 17.75], [117.75, 17.65], [118.0, 17.75], [118.53, 17.53], [118.75, 17.0], [118.65, 16.75], [118.75, 16.5], [118.53, 15.97], [118.0, 15.75], [117.47, 15.97], [117.32, 16.32], [117.25, 16.35], [117.0, 16.25], [116.75, 16.35], [116.5, 16.25], [115.97, 16.47], [115.82, 16.82], [115.47, 16.97], [115.32, 17.32], [114.97, 17.47], [114.82, 17.82], [114.75, 17.85], [114.5, 17.75], [113.97, 17.97], [113.75, 18.5], [113.85, 18.75], [113.82, 18.82], [113.47, 18.97], [113.32, 19.32], [112.97, 19.47], [112.75, 20.0], [112.85, 20.25], [112.82, 20.32], [112.75, 20.35], [112.68, 20.32], [112.53, 19.97], [112.0, 19.75], [111.75, 19.85], [111.5, 19.75], [111.25, 19.85], [111.18, 19.82], [111.03, 19.47], [110.5, 19.25], [110.25, 19.35], [110.0, 19.25], [109.47, 19.47], [109.25, 20.0], [109.47, 20.53], [109.82, 20.68], [109.85, 20.75], [109.75, 21.0]], [[114.75, 19.65], [115.0, 19.75], [115.25, 19.65], [115.32, 19.68], [115.46, 20.0], [115.32, 20.32], [115.25, 20.35], [115.0, 20.25], [114.7, 20.38], [114.65, 20.25], [114.75, 20.0], [114.65, 19.75], [114.68, 19.68], [114.75, 19.65]], [[116.68, 20.32], [116.63, 20.2], [116.75, 20.15], [116.82, 20.18], [116.93, 20.43], [116.68, 20.32]]]]}, "2019-03-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[109.75, 21.0], [109.97, 21.53], [110.5, 21.75], [110.75, 21.65], [110.82, 21.68], [110.97, 22.03], [111.5, 22.25], [111.75, 22.15], [112.0, 22.25], [112.25, 22.15], [112.32, 22.18], [112.47, 22.53], [112.82, 22.68], [112.97, 23.03], [113.5, 23.25], [113.75, 23.15], [114.0, 23.25], [114.25, 23.15], [114.5, 23.25], [114.75, 23.15], [115.0, 23.25], [115.53, 23.03], [115.68, 22.68], [115.75, 22.65], [116.0, 22.75], [116.53, 22.53], [116.68, 22.18], [116.75, 22.15], [117.0, 22.25], [117.53, 22.03], [117.75, 21.5], [117.53, 20.97], [117.18, 20.82], [117.07, 20.57], [117.5, 20.75], [118.03, 20.53], [118.25, 20.0], [118.15, 19.75], [118.25, 19.5], [118.03, 18.97], [117.68, 18.82], [117.65, 18.75], [117.75, 18.5], [117.53, 17.97], [117.13, 17.8], [117.18, 17.68], [117.25, 17.65], [117.5, 17.75], [117.75, 17.65], [118.0, 17.75], [118.53, 17.53], [118.75, 17.0], [118.65, 16.75], [118.75, 16.5], [118.53, 15.97], [118.0, 15.75], [117.47, 15.97], [117.32, 16.32], [117.25, 16.35], [117.0, 16.25], [116.75, 16.35], [116.5, 16.25], [115.97, 16.47], [115.82, 16.82], [115.47, 16.97], [115.32, 17.32], [114.97, 17.47], [114.82, 17.82], [114.75, 17.85], [114.5, 17.75], [113.97, 17.97], [113.75, 18.5], [113.85, 18.75], [113.82, 18.82], [113.47, 18.97], [113.32, 19.32], [112.97, 19.47], [112.75, 20.0], [112.85, 20.25], [112.82, 20.32], [112.75, 20.35], [112.68, 20.32], [112.53, 19.97], [112.0, 19.75], [111.75, 19.85], [111.5, 19.75], [111.25, 19.85], [111.18, 19.82], [111.03, 19.47], [110.5, 19.25], [110.25, 19.35], [110.0, 19.25], [109.47, 19.47], [109.25, 20.0], [109.47, 20.53], [109.82, 20.68], [109.85, 20.75], [109.75, 21.0]], [[114.75, 19.65], [115.0, 19.75], [115.25, 19.65], [115.32, 19.68], [115.46, 20.0], [115.32, 20.32], [115.25, 20.35], [115.0, 20.25], [114.7, 20.38], [114.65, 20.25], [114.75, 20.0], [114.65, 19.75], [114.68, 19.68], [114.75, 19.65]], [[116.68, 20.32], [116.63, 20.2], [116.75, 20.15], [116.82, 20.18], [116.93, 20.43], [116.68, 20.32]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 5.06370987418353}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.0035365491549166}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.441998686793454, 25.507675020931117, 24.2184302211474, 24.81206633455571, 25.39990330184463, 25.282719230467762]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [25.547936810543945, 25.688455380123457, 25.893892771336198, 27.289912565827763, 27.446263146750823, 27.331196997321456]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [0.901448730680471, 0.8975557780124177, 1.7526420794979973, 1.7495377511838828, 2.2861622076958206, 2.16807486969824]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [0.9468615705404773, 0.965614166625528, 3.382771801039098, 3.395961028919089, 5.06370987418353, 4.034048206907926]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.2027181757152356, 1.1712334799663864, 1.2362461778618845, 1.319070736249872, 1.6828157623304443, 1.5877131433628802]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.2625063349050287, 1.2845102364869911, 1.4433171877176671, 1.605095362177746, 2.155099676744205, 1.9242709727443514]}}