{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:18:34.752538", "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-Jan-03_to_2020-Jan-09_120.5_49.5"}, "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": 2020010001234}, "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": "January 03 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 09 2020"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 7}, "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": 334668.108108294}, "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", "Russian Federation"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Siberia"]}, "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": 49.5}, "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": 120.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "120.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 114.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 124.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 44.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 51.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2020-01-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[114.97, 46.53], [115.32, 46.68], [115.35, 46.75], [115.25, 47.0], [115.35, 47.25], [115.25, 47.5], [115.47, 48.03], [116.0, 48.25], [116.53, 48.03], [116.68, 47.68], [117.03, 47.53], [117.18, 47.18], [117.25, 47.15], [117.32, 47.18], [117.47, 47.53], [118.0, 47.75], [118.25, 47.65], [118.5, 47.75], [118.75, 47.65], [119.0, 47.75], [119.25, 47.65], [119.5, 47.75], [120.0, 47.54], [120.32, 47.68], [120.47, 48.03], [121.0, 48.25], [121.25, 48.15], [121.5, 48.25], [122.03, 48.03], [122.25, 47.5], [122.15, 47.25], [122.25, 47.0], [122.04, 46.5], [122.25, 46.0], [122.15, 45.75], [122.25, 45.5], [122.03, 44.97], [121.5, 44.75], [121.25, 44.85], [121.18, 44.82], [121.03, 44.47], [120.5, 44.25], [120.25, 44.35], [120.0, 44.25], [119.75, 44.35], [119.5, 44.25], [118.97, 44.47], [118.82, 44.82], [118.75, 44.85], [118.5, 44.75], [118.25, 44.85], [118.0, 44.75], [117.75, 44.85], [117.5, 44.75], [117.25, 44.85], [117.0, 44.75], [116.47, 44.97], [116.32, 45.32], [116.25, 45.35], [116.18, 45.32], [116.15, 45.25], [116.25, 45.0], [116.03, 44.47], [115.5, 44.25], [115.25, 44.35], [115.0, 44.25], [114.75, 44.35], [114.5, 44.25], [113.97, 44.47], [113.75, 45.0], [113.97, 45.53], [114.32, 45.68], [114.47, 46.03], [114.82, 46.18], [114.97, 46.53]]], [[[116.47, 48.97], [116.25, 49.5], [116.47, 50.03], [117.0, 50.25], [117.53, 50.03], [117.75, 49.5], [117.53, 48.97], [117.0, 48.75], [116.47, 48.97]]]]}, "2020-01-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[114.82, 46.18], [114.97, 46.53], [115.32, 46.68], [115.35, 46.75], [115.25, 47.0], [115.35, 47.25], [115.25, 47.5], [115.47, 48.03], [116.0, 48.25], [116.25, 48.15], [116.32, 48.18], [116.47, 48.53], [116.82, 48.68], [116.88, 48.8], [116.75, 48.85], [116.5, 48.75], [115.97, 48.97], [115.75, 49.5], [115.85, 49.75], [115.75, 50.0], [115.97, 50.53], [116.5, 50.75], [116.75, 50.65], [117.0, 50.75], [117.25, 50.65], [117.5, 50.75], [118.03, 50.53], [118.2, 50.13], [118.5, 50.25], [118.75, 50.15], [119.0, 50.25], [119.53, 50.03], [119.68, 49.68], [119.75, 49.65], [120.0, 49.75], [120.53, 49.53], [120.75, 49.0], [120.63, 48.7], [120.75, 48.65], [120.82, 48.68], [120.97, 49.03], [121.5, 49.25], [121.75, 49.15], [121.82, 49.18], [121.97, 49.53], [122.5, 49.75], [122.75, 49.65], [123.0, 49.75], [123.53, 49.53], [123.75, 49.0], [123.65, 48.75], [123.75, 48.5], [123.53, 47.97], [123.18, 47.82], [123.03, 47.47], [122.5, 47.25], [122.25, 47.35], [122.18, 47.32], [122.15, 47.25], [122.25, 47.0], [122.04, 46.5], [122.25, 46.0], [122.15, 45.75], [122.25, 45.5], [122.03, 44.97], [121.5, 44.75], [121.25, 44.85], [121.18, 44.82], [121.03, 44.47], [120.5, 44.25], [120.25, 44.35], [120.0, 44.25], [119.75, 44.35], [119.5, 44.25], [119.25, 44.35], [119.0, 44.25], [118.5, 44.46], [118.0, 44.25], [117.47, 44.47], [117.32, 44.82], [117.25, 44.85], [117.0, 44.75], [116.47, 44.97], [116.32, 45.32], [116.25, 45.35], [116.18, 45.32], [116.15, 45.25], [116.25, 45.0], [116.03, 44.47], [115.5, 44.25], [115.25, 44.35], [115.0, 44.25], [114.75, 44.35], [114.5, 44.25], [113.97, 44.47], [113.75, 45.0], [113.97, 45.53], [114.32, 45.68], [114.47, 46.03], [114.82, 46.18]], [[119.32, 47.82], [119.25, 47.85], [119.0, 47.75], [119.25, 47.65], [119.38, 47.7], [119.32, 47.82]], [[118.75, 47.85], [118.5, 47.75], [118.75, 47.65], [119.0, 47.75], [118.75, 47.85]], [[118.25, 47.85], [118.0, 47.75], [118.25, 47.65], [118.5, 47.75], [118.25, 47.85]], [[117.75, 47.85], [117.68, 47.82], [117.65, 47.75], [117.68, 47.68], [117.75, 47.65], [118.0, 47.75], [117.75, 47.85]], [[117.8, 49.38], [117.68, 49.32], [117.63, 49.2], [117.75, 49.15], [117.82, 49.18], [117.85, 49.25], [117.8, 49.38]]]]}, "2020-01-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[114.82, 46.18], [114.97, 46.53], [115.32, 46.68], [115.35, 46.75], [115.25, 47.0], [115.35, 47.25], [115.25, 47.5], [115.47, 48.03], [116.0, 48.25], [116.25, 48.15], [116.32, 48.18], [116.47, 48.53], [116.82, 48.68], [116.88, 48.8], [116.75, 48.85], [116.5, 48.75], [115.97, 48.97], [115.75, 49.5], [115.85, 49.75], [115.75, 50.0], [115.97, 50.53], [116.5, 50.75], [116.75, 50.65], [117.0, 50.75], [117.25, 50.65], [117.5, 50.75], [117.8, 50.63], [117.85, 50.75], [117.75, 51.0], [117.97, 51.53], [118.5, 51.75], [118.75, 51.65], [119.0, 51.75], [119.25, 51.65], [119.5, 51.75], [119.75, 51.65], [120.0, 51.75], [120.25, 51.65], [120.5, 51.75], [120.75, 51.65], [120.82, 51.68], [120.97, 52.03], [121.5, 52.25], [121.75, 52.15], [122.0, 52.25], [122.53, 52.03], [122.68, 51.68], [123.03, 51.53], [123.18, 51.18], [123.53, 51.03], [123.75, 50.5], [123.65, 50.25], [123.75, 50.0], [123.65, 49.75], [123.68, 49.68], [124.03, 49.53], [124.18, 49.18], [124.53, 49.03], [124.75, 48.5], [124.65, 48.25], [124.75, 48.0], [124.65, 47.75], [124.75, 47.5], [124.53, 46.97], [124.18, 46.82], [124.15, 46.75], [124.25, 46.5], [124.03, 45.97], [123.5, 45.75], [123.25, 45.85], [123.0, 45.75], [122.47, 45.97], [122.25, 46.5], [122.35, 46.75], [122.32, 46.82], [122.2, 46.88], [122.04, 46.5], [122.25, 46.0], [122.15, 45.75], [122.25, 45.5], [122.03, 44.97], [121.5, 44.75], [121.25, 44.85], [121.18, 44.82], [121.03, 44.47], [120.5, 44.25], [120.25, 44.35], [120.0, 44.25], [119.75, 44.35], [119.5, 44.25], [119.25, 44.35], [119.0, 44.25], [118.5, 44.46], [118.0, 44.25], [117.47, 44.47], [117.32, 44.82], [117.25, 44.85], [117.0, 44.75], [116.47, 44.97], [116.32, 45.32], [116.25, 45.35], [116.18, 45.32], [116.15, 45.25], [116.25, 45.0], [116.03, 44.47], [115.5, 44.25], [115.25, 44.35], [115.0, 44.25], [114.75, 44.35], [114.5, 44.25], [113.97, 44.47], [113.75, 45.0], [113.97, 45.53], [114.32, 45.68], [114.47, 46.03], [114.82, 46.18]]]]}, "2020-01-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[115.35, 47.25], [115.25, 47.5], [115.47, 48.03], [116.0, 48.25], [116.25, 48.15], [116.32, 48.18], [116.47, 48.53], [116.82, 48.68], [116.85, 48.75], [116.82, 48.82], [116.75, 48.85], [116.5, 48.75], [115.97, 48.97], [115.75, 49.5], [115.85, 49.75], [115.75, 50.0], [115.97, 50.53], [116.5, 50.75], [116.75, 50.65], [117.0, 50.75], [117.25, 50.65], [117.5, 50.75], [117.8, 50.63], [117.85, 50.75], [117.75, 51.0], [117.97, 51.53], [118.5, 51.75], [118.75, 51.65], [119.0, 51.75], [119.25, 51.65], [119.5, 51.75], [119.75, 51.65], [120.0, 51.75], [120.25, 51.65], [120.5, 51.75], [120.75, 51.65], [120.82, 51.68], [120.97, 52.03], [121.5, 52.25], [121.75, 52.15], [122.0, 52.25], [122.53, 52.03], [122.68, 51.68], [123.03, 51.53], [123.18, 51.18], [123.53, 51.03], [123.75, 50.5], [123.65, 50.25], [123.75, 50.0], [123.65, 49.75], [123.68, 49.68], [124.03, 49.53], [124.18, 49.18], [124.53, 49.03], [124.75, 48.5], [124.65, 48.25], [124.75, 48.0], [124.65, 47.75], [124.75, 47.5], [124.53, 46.97], [124.18, 46.82], [124.15, 46.75], [124.25, 46.5], [124.03, 45.97], [123.5, 45.75], [123.25, 45.85], [123.0, 45.75], [122.47, 45.97], [122.25, 46.5], [122.35, 46.75], [122.32, 46.82], [122.0, 46.96], [121.68, 46.82], [121.54, 46.5], [121.75, 46.0], [121.53, 45.47], [121.18, 45.32], [121.15, 45.25], [121.25, 45.0], [121.03, 44.47], [120.5, 44.25], [120.25, 44.35], [120.0, 44.25], [119.75, 44.35], [119.5, 44.25], [119.25, 44.35], [119.0, 44.25], [118.5, 44.46], [118.0, 44.25], [117.47, 44.47], [117.32, 44.82], [117.25, 44.85], [117.0, 44.75], [116.47, 44.97], [116.32, 45.32], [115.97, 45.47], [115.82, 45.82], [115.47, 45.97], [115.25, 46.5], [115.35, 46.75], [115.25, 47.0], [115.35, 47.25]]]]}, "2020-01-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[116.85, 49.25], [116.75, 49.5], [116.97, 50.03], [117.5, 50.25], [117.75, 50.15], [117.82, 50.18], [117.85, 50.25], [117.75, 50.5], [117.85, 50.75], [117.75, 51.0], [117.97, 51.53], [118.5, 51.75], [118.75, 51.65], [119.0, 51.75], [119.25, 51.65], [119.5, 51.75], [119.75, 51.65], [120.0, 51.75], [120.25, 51.65], [120.5, 51.75], [120.75, 51.65], [120.82, 51.68], [120.97, 52.03], [121.5, 52.25], [121.75, 52.15], [122.0, 52.25], [122.53, 52.03], [122.68, 51.68], [123.03, 51.53], [123.18, 51.18], [123.53, 51.03], [123.75, 50.5], [123.65, 50.25], [123.75, 50.0], [123.65, 49.75], [123.68, 49.68], [124.03, 49.53], [124.18, 49.18], [124.53, 49.03], [124.75, 48.5], [124.65, 48.25], [124.75, 48.0], [124.65, 47.75], [124.75, 47.5], [124.53, 46.97], [124.18, 46.82], [124.15, 46.75], [124.25, 46.5], [124.03, 45.97], [123.5, 45.75], [123.25, 45.85], [123.0, 45.75], [122.47, 45.97], [122.25, 46.5], [122.35, 46.75], [122.32, 46.82], [122.0, 46.96], [121.5, 46.75], [121.25, 46.85], [121.0, 46.75], [120.75, 46.85], [120.68, 46.82], [120.53, 46.47], [120.18, 46.32], [120.03, 45.97], [119.68, 45.82], [119.53, 45.47], [119.0, 45.25], [118.75, 45.35], [118.5, 45.25], [117.97, 45.47], [117.82, 45.82], [117.47, 45.97], [117.25, 46.5], [117.47, 47.03], [118.0, 47.25], [117.47, 47.47], [117.32, 47.82], [116.97, 47.97], [116.75, 48.5], [116.85, 48.75], [116.75, 49.0], [116.85, 49.25]], [[118.25, 47.15], [118.38, 47.2], [118.32, 47.32], [118.25, 47.35], [118.0, 47.25], [118.25, 47.15]]]]}, "2020-01-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[116.97, 48.47], [116.75, 49.0], [116.97, 49.53], [117.5, 49.75], [118.03, 49.53], [118.25, 49.0], [118.03, 48.47], [117.5, 48.25], [116.97, 48.47]]], [[[119.32, 50.18], [119.47, 50.53], [120.0, 50.75], [120.25, 50.65], [120.5, 50.75], [120.75, 50.65], [121.0, 50.75], [121.53, 50.53], [121.68, 50.18], [122.03, 50.03], [122.25, 49.5], [122.03, 48.97], [121.5, 48.75], [121.25, 48.85], [121.0, 48.75], [120.75, 48.85], [120.68, 48.82], [120.53, 48.47], [120.0, 48.25], [119.75, 48.35], [119.5, 48.25], [118.97, 48.47], [118.75, 49.0], [118.85, 49.25], [118.75, 49.5], [118.97, 50.03], [119.32, 50.18]]]]}, "2020-01-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[119.97, 50.53], [120.5, 50.75], [120.75, 50.65], [121.0, 50.75], [121.53, 50.53], [121.68, 50.18], [122.03, 50.03], [122.25, 49.5], [122.03, 48.97], [121.5, 48.75], [121.25, 48.85], [121.0, 48.75], [120.75, 48.85], [120.5, 48.75], [119.97, 48.97], [119.75, 49.5], [119.85, 49.75], [119.75, 50.0], [119.97, 50.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 13.76293234981199}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 8.032870568874346}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-12.372725425103795, -13.378035715348858, -12.958562347084296, -12.799655606428018, -16.135646202037947, -18.51190081353107, -19.401846132781998]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-7.95938594955237, -8.055307227022297, -6.586323709092937, -8.634476602232837, -11.340885826434317, -15.871998091102284, -19.285586246335697]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [6.646544310189974, 6.832473180017865, 8.718347044368166, 9.329427773720811, 7.0937395761386774, 6.564195719942959, 6.309910676980541]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [7.605973554508125, 8.61895203575392, 12.895323298662248, 13.76293234981199, 9.72399596807037, 7.592964115214926, 6.439213858092131]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4942533981164385, 1.4780575964501295, 1.836611561623924, 1.9494103307174802, 1.4963203842979758, 1.312975945636375, 1.2833501320912286]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6930251145931332, 1.7401807136980447, 2.5453140281071107, 2.7225725710373863, 1.924739262514922, 1.4441881495590172, 1.3128322047323735]}}