{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:09:47.559007", "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-Dec-21_to_2017-Dec-23_118.5_36.5"}, "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": 2017120002285}, "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": "December 21 2017"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 23 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": 67418.60492582069}, "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": 36.5}, "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": 118.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "118.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 115.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 119.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 34.25}, "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": {"2017-12-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[114.85, 36.25], [114.75, 36.5], [114.97, 37.03], [115.32, 37.18], [115.47, 37.53], [116.0, 37.75], [116.25, 37.65], [116.5, 37.75], [116.75, 37.65], [117.0, 37.75], [117.25, 37.65], [117.5, 37.75], [117.75, 37.65], [118.0, 37.75], [118.25, 37.65], [118.5, 37.75], [119.03, 37.53], [119.18, 37.18], [119.25, 37.15], [119.5, 37.25], [120.03, 37.03], [120.25, 36.5], [120.03, 35.97], [119.5, 35.75], [119.25, 35.85], [119.0, 35.75], [118.75, 35.85], [118.5, 35.75], [118.25, 35.85], [118.13, 35.8], [118.25, 35.5], [118.03, 34.97], [117.5, 34.75], [117.25, 34.85], [117.18, 34.82], [117.15, 34.75], [117.25, 34.5], [117.03, 33.97], [116.5, 33.75], [116.25, 33.85], [116.0, 33.75], [115.47, 33.97], [115.25, 34.5], [115.35, 34.75], [115.32, 34.82], [114.97, 34.97], [114.75, 35.5], [114.85, 35.75], [114.75, 36.0], [114.85, 36.25]]]]}, "2017-12-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[114.85, 36.25], [114.75, 36.5], [114.97, 37.03], [115.32, 37.18], [115.47, 37.53], [116.0, 37.75], [116.25, 37.65], [116.5, 37.75], [116.75, 37.65], [117.0, 37.75], [117.25, 37.65], [117.5, 37.75], [117.75, 37.65], [118.0, 37.75], [118.25, 37.65], [118.5, 37.75], [119.03, 37.53], [119.18, 37.18], [119.25, 37.15], [119.5, 37.25], [120.03, 37.03], [120.25, 36.5], [120.03, 35.97], [119.5, 35.75], [119.25, 35.85], [119.0, 35.75], [118.75, 35.85], [118.5, 35.75], [118.25, 35.85], [118.13, 35.8], [118.25, 35.5], [118.03, 34.97], [117.5, 34.75], [117.25, 34.85], [117.18, 34.82], [117.15, 34.75], [117.25, 34.5], [117.03, 33.97], [116.5, 33.75], [116.25, 33.85], [116.0, 33.75], [115.47, 33.97], [115.25, 34.5], [115.35, 34.75], [115.32, 34.82], [114.97, 34.97], [114.75, 35.5], [114.85, 35.75], [114.75, 36.0], [114.85, 36.25]]]]}, "2017-12-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[114.85, 36.25], [114.75, 36.5], [114.97, 37.03], [115.32, 37.18], [115.47, 37.53], [116.0, 37.75], [116.25, 37.65], [116.5, 37.75], [116.75, 37.65], [117.0, 37.75], [117.25, 37.65], [117.5, 37.75], [117.75, 37.65], [118.0, 37.75], [118.25, 37.65], [118.5, 37.75], [119.03, 37.53], [119.18, 37.18], [119.25, 37.15], [119.5, 37.25], [120.03, 37.03], [120.25, 36.5], [120.03, 35.97], [119.5, 35.75], [119.25, 35.85], [119.0, 35.75], [118.75, 35.85], [118.5, 35.75], [118.25, 35.85], [118.13, 35.8], [118.25, 35.5], [118.03, 34.97], [117.5, 34.75], [117.25, 34.85], [117.18, 34.82], [117.15, 34.75], [117.25, 34.5], [117.03, 33.97], [116.5, 33.75], [116.25, 33.85], [116.0, 33.75], [115.47, 33.97], [115.25, 34.5], [115.35, 34.75], [115.32, 34.82], [114.97, 34.97], [114.75, 35.5], [114.85, 35.75], [114.75, 36.0], [114.85, 36.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 6.324931891941617}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.7518317832380585}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [5.883970011540782, 5.187233708869485, 5.001930803434448]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [7.169365236813576, 7.26971326718018, 5.873296032066662]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [5.144262788994034, 4.585478127333084, 4.525754433387057]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [6.288166186002172, 6.324931891941617, 5.626335477991347]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.661953524229607, 1.436670497938626, 1.4142898607566725]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.9739083625212306, 1.8216325500662318, 1.7520254318466093]}}