{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:51:21.882134", "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": "2012-Aug-28_to_2012-Sep-02_116.5_40.0"}, "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": 2012080002975}, "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": "August 28 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 02 2012"}, "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": 449716.58132226416}, "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", "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": ["Yellow 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": 40.0}, "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": 114.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 126.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 36.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 46.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-08-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[113.97, 41.53], [114.5, 41.75], [114.75, 41.65], [115.0, 41.75], [115.25, 41.65], [115.5, 41.75], [115.75, 41.65], [115.82, 41.68], [115.97, 42.03], [116.5, 42.25], [116.75, 42.15], [116.82, 42.18], [116.97, 42.53], [117.5, 42.75], [117.75, 42.65], [117.82, 42.68], [117.97, 43.03], [118.5, 43.25], [119.03, 43.03], [119.25, 42.5], [119.07, 42.07], [119.5, 42.25], [120.03, 42.03], [120.25, 41.5], [120.03, 40.97], [119.5, 40.75], [119.0, 40.96], [118.5, 40.75], [118.25, 40.85], [118.18, 40.82], [118.15, 40.75], [118.25, 40.5], [118.03, 39.97], [117.68, 39.82], [117.53, 39.47], [117.18, 39.32], [117.03, 38.97], [116.5, 38.75], [115.97, 38.97], [115.82, 39.32], [115.75, 39.35], [115.5, 39.25], [115.25, 39.35], [115.0, 39.25], [114.47, 39.47], [114.32, 39.82], [113.97, 39.97], [113.75, 40.5], [113.85, 40.75], [113.75, 41.0], [113.97, 41.53]]]]}, "2012-08-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[114.5, 41.75], [114.75, 41.65], [115.0, 41.75], [115.25, 41.65], [115.5, 41.75], [115.75, 41.65], [115.82, 41.68], [115.97, 42.03], [116.5, 42.25], [116.75, 42.15], [116.82, 42.18], [116.97, 42.53], [117.5, 42.75], [117.75, 42.65], [117.82, 42.68], [117.97, 43.03], [118.5, 43.25], [119.03, 43.03], [119.25, 42.5], [119.07, 42.07], [119.5, 42.25], [120.03, 42.03], [120.25, 41.5], [120.03, 40.97], [119.63, 40.8], [119.68, 40.68], [120.03, 40.53], [120.25, 40.0], [120.03, 39.47], [119.68, 39.32], [119.53, 38.97], [119.0, 38.75], [118.75, 38.85], [118.5, 38.75], [119.03, 38.53], [119.25, 38.0], [119.15, 37.75], [119.25, 37.5], [119.15, 37.25], [119.25, 37.0], [119.03, 36.47], [118.5, 36.25], [117.97, 36.47], [117.82, 36.82], [117.75, 36.85], [117.68, 36.82], [117.53, 36.47], [117.0, 36.25], [116.5, 36.46], [116.0, 36.25], [115.47, 36.47], [115.25, 37.0], [115.38, 37.3], [114.97, 37.47], [114.75, 38.0], [114.85, 38.25], [114.75, 38.5], [114.85, 38.75], [114.75, 39.0], [114.85, 39.25], [114.82, 39.32], [114.47, 39.47], [114.32, 39.82], [113.97, 39.97], [113.75, 40.5], [113.85, 40.75], [113.75, 41.0], [113.97, 41.53], [114.5, 41.75]], [[118.25, 38.85], [118.18, 38.82], [118.15, 38.75], [118.18, 38.68], [118.25, 38.65], [118.5, 38.75], [118.25, 38.85]]], [[[121.25, 41.0], [121.47, 41.53], [122.0, 41.75], [122.53, 41.53], [122.7, 41.13], [123.0, 41.25], [123.53, 41.03], [123.75, 40.5], [123.53, 39.97], [123.18, 39.82], [123.03, 39.47], [122.68, 39.32], [122.53, 38.97], [122.0, 38.75], [121.47, 38.97], [121.25, 39.5], [121.47, 40.03], [121.82, 40.18], [121.88, 40.3], [121.47, 40.47], [121.25, 41.0]]]]}, "2012-08-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[113.97, 41.53], [114.5, 41.75], [114.75, 41.65], [115.0, 41.75], [115.25, 41.65], [115.5, 41.75], [115.75, 41.65], [115.82, 41.68], [115.97, 42.03], [116.32, 42.18], [116.47, 42.53], [117.0, 42.75], [117.25, 42.65], [117.32, 42.68], [117.47, 43.03], [117.88, 43.2], [117.75, 43.5], [117.97, 44.03], [118.5, 44.25], [118.75, 44.15], [118.82, 44.18], [118.97, 44.53], [119.5, 44.75], [119.75, 44.65], [119.82, 44.68], [119.97, 45.03], [120.32, 45.18], [120.47, 45.53], [120.82, 45.68], [120.97, 46.03], [121.5, 46.25], [121.75, 46.15], [121.82, 46.18], [121.97, 46.53], [122.5, 46.75], [123.03, 46.53], [123.18, 46.18], [123.53, 46.03], [123.68, 45.68], [124.03, 45.53], [124.18, 45.18], [124.53, 45.03], [124.75, 44.5], [124.65, 44.25], [124.68, 44.18], [124.75, 44.15], [125.0, 44.25], [125.53, 44.03], [125.75, 43.5], [125.65, 43.25], [125.75, 43.0], [125.53, 42.47], [125.18, 42.32], [125.03, 41.97], [124.68, 41.82], [124.65, 41.75], [124.75, 41.5], [124.53, 40.97], [124.18, 40.82], [124.03, 40.47], [123.68, 40.32], [123.53, 39.97], [123.18, 39.82], [123.03, 39.47], [122.68, 39.32], [122.53, 38.97], [122.0, 38.75], [121.47, 38.97], [121.25, 39.5], [121.35, 39.75], [121.25, 40.0], [121.43, 40.43], [121.0, 40.25], [120.75, 40.35], [120.68, 40.32], [120.53, 39.97], [120.18, 39.82], [120.03, 39.47], [119.68, 39.32], [119.53, 38.97], [119.0, 38.75], [119.53, 38.53], [119.75, 38.0], [119.54, 37.5], [119.75, 37.0], [119.53, 36.47], [119.0, 36.25], [118.75, 36.35], [118.68, 36.32], [118.53, 35.97], [118.0, 35.75], [117.75, 35.85], [117.5, 35.75], [117.25, 35.85], [117.0, 35.75], [116.75, 35.85], [116.5, 35.75], [116.25, 35.85], [116.0, 35.75], [115.47, 35.97], [115.25, 36.5], [115.35, 36.75], [115.25, 37.0], [115.38, 37.3], [114.97, 37.47], [114.75, 38.0], [114.85, 38.25], [114.75, 38.5], [114.85, 38.75], [114.75, 39.0], [114.85, 39.25], [114.82, 39.32], [114.47, 39.47], [114.32, 39.82], [113.97, 39.97], [113.75, 40.5], [113.85, 40.75], [113.75, 41.0], [113.97, 41.53]], [[118.75, 38.85], [118.5, 38.75], [118.75, 38.65], [119.0, 38.75], [118.75, 38.85]], [[118.25, 38.85], [118.18, 38.82], [118.15, 38.75], [118.18, 38.68], [118.25, 38.65], [118.5, 38.75], [118.25, 38.85]]]]}, "2012-08-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[113.97, 41.53], [114.5, 41.75], [114.75, 41.65], [115.0, 41.75], [115.53, 41.53], [115.68, 41.18], [115.75, 41.15], [115.82, 41.18], [115.97, 41.53], [116.32, 41.68], [116.35, 41.75], [116.25, 42.0], [116.47, 42.53], [117.0, 42.75], [117.3, 42.63], [117.47, 43.03], [117.88, 43.2], [117.75, 43.5], [117.97, 44.03], [118.5, 44.25], [118.75, 44.15], [118.82, 44.18], [118.97, 44.53], [119.5, 44.75], [119.75, 44.65], [119.82, 44.68], [119.97, 45.03], [120.32, 45.18], [120.47, 45.53], [120.82, 45.68], [120.97, 46.03], [121.5, 46.25], [121.75, 46.15], [121.82, 46.18], [121.97, 46.53], [122.5, 46.75], [123.03, 46.53], [123.18, 46.18], [123.53, 46.03], [123.68, 45.68], [124.03, 45.53], [124.18, 45.18], [124.53, 45.03], [124.75, 44.5], [124.65, 44.25], [124.68, 44.18], [124.75, 44.15], [125.0, 44.25], [125.5, 44.04], [126.0, 44.25], [126.53, 44.03], [126.75, 43.5], [126.53, 42.97], [126.18, 42.82], [126.15, 42.75], [126.25, 42.5], [126.15, 42.25], [126.25, 42.0], [126.15, 41.75], [126.25, 41.5], [126.03, 40.97], [125.5, 40.75], [124.97, 40.97], [124.75, 41.5], [124.53, 40.97], [124.18, 40.82], [124.03, 40.47], [123.68, 40.32], [123.53, 39.97], [123.18, 39.82], [123.03, 39.47], [122.68, 39.32], [122.53, 38.97], [122.0, 38.75], [121.47, 38.97], [121.25, 39.5], [121.35, 39.75], [121.25, 40.0], [121.43, 40.43], [121.0, 40.25], [120.75, 40.35], [120.68, 40.32], [120.53, 39.97], [120.18, 39.82], [120.03, 39.47], [119.68, 39.32], [119.53, 38.97], [119.0, 38.75], [119.53, 38.53], [119.75, 38.0], [119.54, 37.5], [119.75, 37.0], [119.53, 36.47], [119.0, 36.25], [118.75, 36.35], [118.68, 36.32], [118.53, 35.97], [118.0, 35.75], [117.75, 35.85], [117.5, 35.75], [117.25, 35.85], [117.0, 35.75], [116.75, 35.85], [116.5, 35.75], [116.25, 35.85], [116.0, 35.75], [115.47, 35.97], [115.25, 36.5], [115.35, 36.75], [115.25, 37.0], [115.38, 37.3], [114.97, 37.47], [114.75, 38.0], [114.85, 38.25], [114.75, 38.5], [114.85, 38.75], [114.75, 39.0], [114.85, 39.25], [114.75, 39.5], [114.85, 39.75], [114.82, 39.82], [114.75, 39.85], [114.5, 39.75], [113.97, 39.97], [113.75, 40.5], [113.85, 40.75], [113.75, 41.0], [113.97, 41.53]], [[124.85, 41.75], [124.8, 41.88], [124.68, 41.82], [124.65, 41.75], [124.75, 41.5], [124.85, 41.75]], [[118.75, 38.85], [118.5, 38.75], [118.75, 38.65], [119.0, 38.75], [118.75, 38.85]], [[118.25, 38.85], [118.18, 38.82], [118.15, 38.75], [118.18, 38.68], [118.25, 38.65], [118.5, 38.75], [118.25, 38.85]]]]}, "2012-09-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[115.75, 37.5], [115.97, 38.03], [116.32, 38.18], [116.35, 38.25], [116.25, 38.5], [116.35, 38.75], [116.25, 39.0], [116.47, 39.53], [116.82, 39.68], [116.85, 39.75], [116.75, 40.0], [116.96, 40.5], [116.75, 41.0], [116.85, 41.25], [116.82, 41.32], [116.47, 41.47], [116.25, 42.0], [116.47, 42.53], [117.0, 42.75], [117.3, 42.63], [117.47, 43.03], [117.88, 43.2], [117.75, 43.5], [117.97, 44.03], [118.5, 44.25], [118.75, 44.15], [118.82, 44.18], [118.97, 44.53], [119.5, 44.75], [119.75, 44.65], [119.82, 44.68], [119.97, 45.03], [120.32, 45.18], [120.47, 45.53], [120.82, 45.68], [120.97, 46.03], [121.5, 46.25], [121.75, 46.15], [121.82, 46.18], [121.97, 46.53], [122.5, 46.75], [123.03, 46.53], [123.18, 46.18], [123.53, 46.03], [123.68, 45.68], [124.03, 45.53], [124.18, 45.18], [124.53, 45.03], [124.75, 44.5], [124.65, 44.25], [124.68, 44.18], [124.75, 44.15], [125.0, 44.25], [125.5, 44.04], [126.0, 44.25], [126.53, 44.03], [126.75, 43.5], [126.53, 42.97], [126.18, 42.82], [126.15, 42.75], [126.25, 42.5], [126.15, 42.25], [126.25, 42.0], [126.15, 41.75], [126.25, 41.5], [126.03, 40.97], [125.5, 40.75], [124.97, 40.97], [124.75, 41.5], [124.53, 40.97], [124.18, 40.82], [124.03, 40.47], [123.68, 40.32], [123.53, 39.97], [123.18, 39.82], [123.03, 39.47], [122.68, 39.32], [122.53, 38.97], [122.0, 38.75], [121.47, 38.97], [121.25, 39.5], [121.35, 39.75], [121.25, 40.0], [121.43, 40.43], [121.0, 40.25], [120.75, 40.35], [120.68, 40.32], [120.53, 39.97], [120.18, 39.82], [120.03, 39.47], [119.68, 39.32], [119.53, 38.97], [119.0, 38.75], [119.53, 38.53], [119.75, 38.0], [119.54, 37.5], [119.75, 37.0], [119.53, 36.47], [119.0, 36.25], [118.75, 36.35], [118.68, 36.32], [118.53, 35.97], [118.0, 35.75], [117.75, 35.85], [117.5, 35.75], [117.25, 35.85], [117.0, 35.75], [116.75, 35.85], [116.5, 35.75], [116.25, 35.85], [116.0, 35.75], [115.47, 35.97], [115.25, 36.5], [115.47, 37.03], [115.82, 37.18], [115.85, 37.25], [115.75, 37.5]], [[124.85, 41.75], [124.8, 41.88], [124.68, 41.82], [124.65, 41.75], [124.75, 41.5], [124.85, 41.75]], [[118.75, 38.85], [118.5, 38.75], [118.75, 38.65], [119.0, 38.75], [118.75, 38.85]], [[118.25, 38.85], [118.18, 38.82], [118.15, 38.75], [118.18, 38.68], [118.25, 38.65], [118.5, 38.75], [118.25, 38.85]]]]}, "2012-09-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[121.75, 41.0], [121.97, 41.53], [122.32, 41.68], [122.47, 42.03], [122.82, 42.18], [122.97, 42.53], [123.5, 42.75], [123.93, 42.57], [123.75, 43.0], [123.97, 43.53], [124.5, 43.75], [124.75, 43.65], [125.0, 43.75], [125.25, 43.65], [125.32, 43.68], [125.47, 44.03], [126.0, 44.25], [126.53, 44.03], [126.75, 43.5], [126.53, 42.97], [126.18, 42.82], [126.15, 42.75], [126.25, 42.5], [126.15, 42.25], [126.25, 42.0], [126.15, 41.75], [126.25, 41.5], [126.03, 40.97], [125.5, 40.75], [124.97, 40.97], [124.75, 41.5], [124.53, 40.97], [124.0, 40.75], [123.75, 40.85], [123.68, 40.82], [123.53, 40.47], [123.18, 40.32], [123.03, 39.97], [122.68, 39.82], [122.53, 39.47], [122.0, 39.25], [121.47, 39.47], [121.25, 40.0], [121.47, 40.53], [121.82, 40.68], [121.85, 40.75], [121.75, 41.0]], [[124.85, 41.75], [124.75, 42.0], [124.85, 42.25], [124.82, 42.32], [124.75, 42.35], [124.5, 42.25], [124.07, 42.43], [124.18, 42.18], [124.53, 42.03], [124.75, 41.5], [124.85, 41.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 8.002124609266104}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.218369030311514}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [22.962909893112908, 25.42642869942381, 25.737728558154572, 25.636591221265405, 25.57867560695729, 23.474992452356105]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [28.532827232581383, 30.015452013534855, 30.172198312044543, 29.363190540385915, 28.542604804678263, 25.15782154148394]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.3440441904691114, 3.2744113806966335, 4.355744876518975, 4.3667370709025395, 4.571875400173976, 3.280978141211343]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.00715626374955, 5.334647815111964, 8.002124609266104, 7.323355474832283, 7.210699406505796, 3.782927402062114]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5607836674805016, 1.55796737123295, 1.7585091727546238, 1.7302857509876117, 1.8175744767816788, 1.349763895130249]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.7942442348663656, 2.5327000445682533, 2.6549141643126104, 2.379393632337735, 2.4895247025612948, 1.4351781673890374]}}