{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-03-19 18:18:21.605209", "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-Sep-04_to_2020-Sep-07_241.0_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": 2020090001285}, "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": "September 04 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 07 2020"}, "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": 55400.1040514903}, "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": ["Canada", "United States"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["America", "America"]}, "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": 241.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "241.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 240.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 244.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 47.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 49.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "Polygon", "coordinates": [[[-120.646, 48.75], [-120.75, 49.0], [-120.53, 49.53], [-120.0, 49.75], [-119.75, 49.646], [-119.5, 49.75], [-119.25, 49.646], [-119.0, 49.75], [-118.75, 49.646], [-118.5, 49.75], [-118.25, 49.646], [-118.0, 49.75], [-117.75, 49.646], [-117.5, 49.75], [-117.25, 49.646], [-117.0, 49.75], [-116.75, 49.646], [-116.5, 49.75], [-116.25, 49.646], [-116.0, 49.75], [-115.47, 49.53], [-115.25, 49.0], [-115.47, 48.47], [-115.823, 48.323], [-115.97, 47.97], [-116.323, 47.823], [-116.47, 47.47], [-117.0, 47.25], [-117.25, 47.354], [-117.5, 47.25], [-117.75, 47.354], [-117.823, 47.323], [-117.97, 46.97], [-118.5, 46.75], [-118.75, 46.854], [-118.823, 46.823], [-118.97, 46.47], [-119.5, 46.25], [-120.03, 46.47], [-120.25, 47.0], [-120.125, 47.302], [-120.53, 47.47], [-120.75, 48.0], [-120.646, 48.25], [-120.75, 48.5], [-120.646, 48.75]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["W.North-America"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": 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"max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 9.405371433634627}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 6.445486501718213}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [22.2937552485339, 23.16347092852675, 22.401598074963204, 22.781479366371002]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.864746714274077, 26.644429120713426, 25.83875557037669, 26.299848248956607]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [5.96919440084897, 7.120159263963541, 6.60296337067723, 5.377913910712916]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [6.888661544191621, 9.405371433634627, 8.453963788386886, 5.934763000771454]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.6275593109314856, 1.975154297751109, 1.855758790329925, 1.6138003958899318]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.890155458753632, 2.335568900799417, 2.31426772474372, 1.976139462607936]}}