{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:46:51.054031", "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": "2011-Feb-19_to_2011-Feb-22_118.5_44.0"}, "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": 2011020002238}, "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": "February 19 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 22 2011"}, "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": 148562.56161534262}, "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": []}, "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": 44.0}, "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": 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": 116.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 123.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 42.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 46.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-02-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[117.97, 43.47], [117.75, 44.0], [117.97, 44.53], [118.5, 44.75], [119.0, 44.54], [119.5, 44.75], [120.03, 44.53], [120.25, 44.0], [120.03, 43.47], [119.5, 43.25], [119.0, 43.46], [118.5, 43.25], [117.97, 43.47]]]]}, "2011-02-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[116.47, 45.03], [117.0, 45.25], [117.25, 45.15], [117.5, 45.25], [118.0, 45.04], [118.32, 45.18], [118.47, 45.53], [119.0, 45.75], [119.25, 45.65], [119.32, 45.68], [119.47, 46.03], [120.0, 46.25], [120.43, 46.07], [120.25, 46.5], [120.47, 47.03], [121.0, 47.25], [121.25, 47.15], [121.5, 47.25], [121.75, 47.15], [122.0, 47.25], [122.53, 47.03], [122.75, 46.5], [122.63, 46.2], [122.75, 46.15], [123.0, 46.25], [123.53, 46.03], [123.75, 45.5], [123.65, 45.25], [123.68, 45.18], [124.03, 45.03], [124.25, 44.5], [124.15, 44.25], [124.25, 44.0], [124.03, 43.47], [123.68, 43.32], [123.53, 42.97], [123.18, 42.82], [123.03, 42.47], [122.5, 42.25], [122.25, 42.35], [122.0, 42.25], [121.75, 42.35], [121.5, 42.25], [121.25, 42.35], [121.18, 42.32], [121.03, 41.97], [120.5, 41.75], [120.25, 41.85], [120.0, 41.75], [119.75, 41.85], [119.5, 41.75], [118.97, 41.97], [118.82, 42.32], [118.75, 42.35], [118.5, 42.25], [117.97, 42.47], [117.82, 42.82], [117.75, 42.85], [117.5, 42.75], [116.97, 42.97], [116.82, 43.32], [116.47, 43.47], [116.25, 44.0], [116.35, 44.25], [116.25, 44.5], [116.47, 45.03]], [[120.75, 45.65], [120.82, 45.68], [120.85, 45.75], [120.82, 45.82], [120.57, 45.93], [120.68, 45.68], [120.75, 45.65]]]]}, "2011-02-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[116.47, 45.03], [117.0, 45.25], [117.25, 45.15], [117.5, 45.25], [118.0, 45.04], [118.32, 45.18], [118.47, 45.53], [119.0, 45.75], [119.25, 45.65], [119.32, 45.68], [119.47, 46.03], [120.0, 46.25], [120.43, 46.07], [120.25, 46.5], [120.47, 47.03], [121.0, 47.25], [121.25, 47.15], [121.5, 47.25], [121.75, 47.15], [122.0, 47.25], [122.53, 47.03], [122.75, 46.5], [122.63, 46.2], [122.75, 46.15], [123.0, 46.25], [123.53, 46.03], [123.75, 45.5], [123.65, 45.25], [123.68, 45.18], [124.03, 45.03], [124.25, 44.5], [124.15, 44.25], [124.25, 44.0], [124.03, 43.47], [123.68, 43.32], [123.53, 42.97], [123.18, 42.82], [123.03, 42.47], [122.5, 42.25], [122.25, 42.35], [122.0, 42.25], [121.75, 42.35], [121.5, 42.25], [121.25, 42.35], [121.18, 42.32], [121.03, 41.97], [120.5, 41.75], [120.25, 41.85], [120.0, 41.75], [119.75, 41.85], [119.5, 41.75], [118.97, 41.97], [118.82, 42.32], [118.75, 42.35], [118.5, 42.25], [117.97, 42.47], [117.82, 42.82], [117.75, 42.85], [117.5, 42.75], [116.97, 42.97], [116.82, 43.32], [116.47, 43.47], [116.25, 44.0], [116.35, 44.25], [116.25, 44.5], [116.47, 45.03]], [[120.75, 45.65], [120.82, 45.68], [120.85, 45.75], [120.82, 45.82], [120.57, 45.93], [120.68, 45.68], [120.75, 45.65]]]]}, "2011-02-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[116.47, 45.03], [117.0, 45.25], [117.25, 45.15], [117.5, 45.25], [118.0, 45.04], [118.32, 45.18], [118.47, 45.53], [119.0, 45.75], [119.25, 45.65], [119.32, 45.68], [119.47, 46.03], [120.0, 46.25], [120.43, 46.07], [120.25, 46.5], [120.47, 47.03], [121.0, 47.25], [121.25, 47.15], [121.5, 47.25], [121.75, 47.15], [122.0, 47.25], [122.53, 47.03], [122.75, 46.5], [122.63, 46.2], [122.75, 46.15], [123.0, 46.25], [123.53, 46.03], [123.75, 45.5], [123.65, 45.25], [123.68, 45.18], [124.03, 45.03], [124.25, 44.5], [124.15, 44.25], [124.25, 44.0], [124.03, 43.47], [123.68, 43.32], [123.53, 42.97], [123.18, 42.82], [123.03, 42.47], [122.5, 42.25], [122.25, 42.35], [122.0, 42.25], [121.75, 42.35], [121.5, 42.25], [121.25, 42.35], [121.18, 42.32], [121.03, 41.97], [120.5, 41.75], [120.25, 41.85], [120.0, 41.75], [119.75, 41.85], [119.5, 41.75], [118.97, 41.97], [118.82, 42.32], [118.75, 42.35], [118.5, 42.25], [117.97, 42.47], [117.82, 42.82], [117.75, 42.85], [117.5, 42.75], [116.97, 42.97], [116.82, 43.32], [116.47, 43.47], [116.25, 44.0], [116.35, 44.25], [116.25, 44.5], [116.47, 45.03]], [[120.75, 45.65], [120.82, 45.68], [120.85, 45.75], [120.82, 45.82], [120.57, 45.93], [120.68, 45.68], [120.75, 45.65]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 11.282247693876855}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 8.216973233585236}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-3.0657419452687122, -0.6935736071975498, 0.35305297638751654, 2.1171275546435027]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-2.2911582409262223, 2.568290049831944, 3.239832653243468, 5.2744627511705175]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [6.89288674161395, 7.235271571646659, 7.965480561457559, 9.489692537561064]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [7.583755047076522, 9.141156215380533, 11.282247693876855, 11.009338663962296]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.40754703777429, 1.5426467672628197, 1.6710304265516414, 1.996378659142337]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.4866838430844114, 1.7689072676643998, 2.1541557902085073, 2.217298193847622]}}