{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-03-19 18:17:19.087075", "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-Jul-08_to_2020-Jul-12_119.5_50.0"}, "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": 2020070001923}, "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": "July 08 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 12 2020"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 54054.57334970552}, "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", "Russian Federation"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Asia", "Europe"]}, "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": 50.0}, "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": 119.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "119.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 116.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 120.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 48.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 51.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "Polygon", "coordinates": [[[120.146, 50.25], [120.177, 50.177], [120.53, 50.03], [120.75, 49.5], [120.53, 48.97], [120.177, 48.823], [120.146, 48.75], [120.146, 48.749], [120.25, 48.5], [120.03, 47.97], [119.5, 47.75], [119.25, 47.854], [119.0, 47.75], [118.75, 47.854], [118.5, 47.75], [118.25, 47.854], [118.0, 47.75], [117.47, 47.97], [117.25, 48.5], [117.354, 48.75], [117.323, 48.823], [117.0, 48.957], [116.5, 48.75], [115.97, 48.97], [115.75, 49.5], [115.97, 50.03], [116.323, 50.177], [116.354, 50.25], [116.25, 50.5], [116.47, 51.03], [117.0, 51.25], [117.5, 51.043], [118.0, 51.25], [118.25, 51.146], [118.323, 51.177], [118.47, 51.53], [119.0, 51.75], [119.53, 51.53], [119.677, 51.177], [120.03, 51.03], [120.25, 50.5], [120.146, 50.251], [120.146, 50.25]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Siberia"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2020-07-08T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[115.75, 49.5], [115.96966991411009, 50.03033008588991], 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4.350019423610133}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.755058058014754, 25.98514444974137, 25.464721595034746, 24.92978971333281, 24.638455571272573]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [25.755058058014754, 27.474122938233393, 26.95960278247577, 26.50960879201665, 25.220352361018456]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.589001736911939, 5.075987947141755, 4.378450003985944, 3.7213579471967537, 3.2843794905964785]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.589001736911939, 6.0762290409919615, 5.202726693570639, 4.164288831429019, 3.494143826845118]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m 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