{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:04:01.736848", "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": "2015-Oct-04_to_2015-Oct-07_121.0_48.5"}, "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": 2015100001184}, "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": "October 04 2015"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 07 2015"}, "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": 51733.70009849749}, "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.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": 48.5}, "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": 121.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "121.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 119.75}, "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": 47.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 51.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2015-10-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[121.0, 49.25], [121.53, 49.03], [121.75, 48.5], [121.53, 47.97], [121.18, 47.82], [121.03, 47.47], [120.5, 47.25], [119.97, 47.47], [119.75, 48.0], [119.97, 48.53], [120.32, 48.68], [120.47, 49.03], [121.0, 49.25]]]]}, "2015-10-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[119.47, 51.53], [120.0, 51.75], [120.25, 51.65], [120.5, 51.75], [120.75, 51.65], [121.0, 51.75], [121.25, 51.65], [121.5, 51.75], [121.75, 51.65], [122.0, 51.75], [122.25, 51.65], [122.5, 51.75], [122.75, 51.65], [123.0, 51.75], [123.25, 51.65], [123.5, 51.75], [124.03, 51.53], [124.25, 51.0], [124.03, 50.47], [123.5, 50.25], [123.25, 50.35], [123.18, 50.32], [123.03, 49.97], [122.68, 49.82], [122.65, 49.75], [122.75, 49.5], [122.65, 49.25], [122.75, 49.0], [122.53, 48.47], [122.18, 48.32], [122.15, 48.25], [122.25, 48.0], [122.03, 47.47], [121.5, 47.25], [121.25, 47.35], [121.0, 47.25], [120.75, 47.35], [120.5, 47.25], [119.97, 47.47], [119.75, 48.0], [119.97, 48.53], [120.32, 48.68], [120.47, 49.03], [120.82, 49.18], [120.85, 49.25], [120.82, 49.32], [120.75, 49.35], [120.5, 49.25], [120.25, 49.35], [120.0, 49.25], [119.47, 49.47], [119.25, 50.0], [119.46, 50.5], [119.25, 51.0], [119.47, 51.53]]]]}, "2015-10-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[119.47, 51.53], [120.0, 51.75], [120.25, 51.65], [120.5, 51.75], [120.75, 51.65], [121.0, 51.75], [121.25, 51.65], [121.5, 51.75], [121.75, 51.65], [122.0, 51.75], [122.25, 51.65], [122.5, 51.75], [122.75, 51.65], [123.0, 51.75], [123.25, 51.65], [123.5, 51.75], [124.03, 51.53], [124.25, 51.0], [124.03, 50.47], [123.5, 50.25], [123.25, 50.35], [123.18, 50.32], [123.03, 49.97], [122.68, 49.82], [122.65, 49.75], [122.75, 49.5], [122.65, 49.25], [122.75, 49.0], [122.53, 48.47], [122.18, 48.32], [122.15, 48.25], [122.25, 48.0], [122.03, 47.47], [121.5, 47.25], [121.25, 47.35], [121.0, 47.25], [120.75, 47.35], [120.5, 47.25], [119.97, 47.47], [119.75, 48.0], [119.97, 48.53], [120.32, 48.68], [120.47, 49.03], [120.82, 49.18], [120.85, 49.25], [120.82, 49.32], [120.75, 49.35], [120.5, 49.25], [120.25, 49.35], [120.0, 49.25], [119.47, 49.47], [119.25, 50.0], [119.46, 50.5], [119.25, 51.0], [119.47, 51.53]]]]}, "2015-10-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[119.47, 51.53], [120.0, 51.75], [120.25, 51.65], [120.5, 51.75], [120.75, 51.65], [121.0, 51.75], [121.25, 51.65], [121.5, 51.75], [121.75, 51.65], [122.0, 51.75], [122.25, 51.65], [122.5, 51.75], [122.75, 51.65], [123.0, 51.75], [123.25, 51.65], [123.5, 51.75], [124.03, 51.53], [124.25, 51.0], [124.03, 50.47], [123.5, 50.25], [123.25, 50.35], [123.18, 50.32], [123.03, 49.97], [122.68, 49.82], [122.65, 49.75], [122.75, 49.5], [122.65, 49.25], [122.75, 49.0], [122.53, 48.47], [122.18, 48.32], [122.15, 48.25], [122.25, 48.0], [122.03, 47.47], [121.5, 47.25], [121.25, 47.35], [121.0, 47.25], [120.47, 47.47], [120.25, 48.0], [120.35, 48.25], [120.25, 48.5], [120.47, 49.03], [120.82, 49.18], [120.85, 49.25], [120.82, 49.32], [120.75, 49.35], [120.5, 49.25], [120.25, 49.35], [120.0, 49.25], [119.47, 49.47], [119.25, 50.0], [119.46, 50.5], [119.25, 51.0], [119.47, 51.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 10.417942002540087}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 6.748881497777732}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [9.214051469488766, 7.970494458153155, 10.742271587288258, 10.056643850351861]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [9.497612855816726, 9.209170465602881, 13.869495971321726, 11.102002395849524]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [5.959024818770871, 5.116637957350968, 7.931692177537741, 7.279480207191705]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [6.094801105666306, 6.039174342206138, 10.417942002540087, 8.59039581544232]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5302705808199009, 1.564080562740739, 2.3808054047188607, 2.1328611808194453]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.5414500852621775, 2.013602598861077, 2.747284976201019, 2.817457748409948]}}