{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:55:40.272514", "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": "2014-Jan-31_to_2014-Feb-03_236.5_63.0"}, "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": 2014010002865}, "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": "January 31 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 03 2014"}, "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": 62847.14181613398}, "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"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.W.North-America"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["North 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": 63.0}, "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": 236.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "236.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 232.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 238.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 60.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 65.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-01-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-127.0, 65.75], [-126.75, 65.65], [-126.5, 65.75], [-126.25, 65.65], [-126.0, 65.75], [-125.75, 65.65], [-125.5, 65.75], [-125.25, 65.65], [-125.0, 65.75], [-124.47, 65.53], [-124.25, 65.0], [-124.35, 64.75], [-124.32, 64.68], [-124.0, 64.54], [-123.5, 64.75], [-123.25, 64.65], [-123.0, 64.75], [-122.47, 64.53], [-122.32, 64.18], [-121.97, 64.03], [-121.82, 63.68], [-121.47, 63.53], [-121.25, 63.0], [-121.35, 62.75], [-121.25, 62.5], [-121.35, 62.25], [-121.25, 62.0], [-121.35, 61.75], [-121.25, 61.5], [-121.47, 60.97], [-122.0, 60.75], [-122.25, 60.85], [-122.32, 60.82], [-122.47, 60.47], [-123.0, 60.25], [-123.25, 60.35], [-123.5, 60.25], [-123.75, 60.35], [-124.0, 60.25], [-124.53, 60.47], [-124.75, 61.0], [-124.54, 61.5], [-124.75, 62.0], [-124.65, 62.25], [-124.68, 62.32], [-124.75, 62.35], [-125.0, 62.25], [-125.53, 62.47], [-125.75, 63.0], [-125.65, 63.25], [-125.68, 63.32], [-126.03, 63.47], [-126.2, 63.88], [-126.5, 63.75], [-126.75, 63.85], [-127.0, 63.75], [-127.25, 63.85], [-127.5, 63.75], [-128.03, 63.97], [-128.25, 64.5], [-128.03, 65.03], [-127.68, 65.18], [-127.53, 65.53], [-127.0, 65.75]]]]}, "2014-02-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-127.0, 65.75], [-126.75, 65.65], [-126.5, 65.75], [-126.25, 65.65], [-126.0, 65.75], [-125.75, 65.65], [-125.5, 65.75], [-125.25, 65.65], [-125.0, 65.75], [-124.47, 65.53], [-124.25, 65.0], [-124.35, 64.75], [-124.32, 64.68], [-124.0, 64.54], [-123.5, 64.75], [-123.25, 64.65], [-123.0, 64.75], [-122.47, 64.53], [-122.32, 64.18], [-121.97, 64.03], [-121.82, 63.68], [-121.47, 63.53], [-121.25, 63.0], [-121.35, 62.75], [-121.25, 62.5], [-121.35, 62.25], [-121.25, 62.0], [-121.35, 61.75], [-121.25, 61.5], [-121.47, 60.97], [-122.0, 60.75], [-122.25, 60.85], [-122.32, 60.82], [-122.47, 60.47], [-123.0, 60.25], [-123.25, 60.35], [-123.5, 60.25], [-123.75, 60.35], [-124.0, 60.25], [-124.53, 60.47], [-124.75, 61.0], [-124.54, 61.5], [-124.75, 62.0], [-124.65, 62.25], [-124.68, 62.32], [-124.75, 62.35], [-125.0, 62.25], [-125.53, 62.47], [-125.75, 63.0], [-125.65, 63.25], [-125.68, 63.32], [-126.03, 63.47], [-126.2, 63.88], [-126.5, 63.75], [-126.75, 63.85], [-127.0, 63.75], [-127.25, 63.85], [-127.5, 63.75], [-128.03, 63.97], [-128.25, 64.5], [-128.03, 65.03], [-127.68, 65.18], [-127.53, 65.53], [-127.0, 65.75]]]]}, "2014-02-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-127.0, 65.75], [-126.75, 65.65], [-126.5, 65.75], [-126.25, 65.65], [-126.0, 65.75], [-125.75, 65.65], [-125.5, 65.75], [-125.25, 65.65], [-125.0, 65.75], [-124.47, 65.53], [-124.25, 65.0], [-124.35, 64.75], [-124.32, 64.68], [-124.0, 64.54], [-123.5, 64.75], [-123.25, 64.65], [-123.0, 64.75], [-122.47, 64.53], [-122.32, 64.18], [-121.97, 64.03], [-121.82, 63.68], [-121.47, 63.53], [-121.25, 63.0], [-121.35, 62.75], [-121.25, 62.5], [-121.35, 62.25], [-121.25, 62.0], [-121.35, 61.75], [-121.25, 61.5], [-121.47, 60.97], [-122.0, 60.75], [-122.25, 60.85], [-122.32, 60.82], [-122.47, 60.47], [-123.0, 60.25], [-123.25, 60.35], [-123.5, 60.25], [-123.75, 60.35], [-124.0, 60.25], [-124.53, 60.47], [-124.75, 61.0], [-124.54, 61.5], [-124.75, 62.0], [-124.65, 62.25], [-124.68, 62.32], [-124.75, 62.35], [-125.0, 62.25], [-125.53, 62.47], [-125.75, 63.0], [-125.65, 63.25], [-125.68, 63.32], [-126.03, 63.47], [-126.2, 63.88], [-126.5, 63.75], [-126.75, 63.85], [-127.0, 63.75], [-127.25, 63.85], [-127.5, 63.75], [-128.03, 63.97], [-128.25, 64.5], [-128.03, 65.03], [-127.68, 65.18], [-127.53, 65.53], [-127.0, 65.75]]]]}, "2014-02-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-124.75, 63.0], [-124.53, 63.53], [-124.0, 63.75], [-123.75, 63.65], [-123.5, 63.75], [-122.97, 63.53], [-122.82, 63.18], [-122.47, 63.03], [-122.25, 62.5], [-122.47, 61.97], [-123.0, 61.75], [-123.25, 61.85], [-123.5, 61.75], [-124.03, 61.97], [-124.18, 62.32], [-124.53, 62.47], [-124.75, 63.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 18.003259161395505}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 13.915396972601975}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-8.53510395333376, -8.363550707040645, -11.022058655871547, -12.87278191260748]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-5.778655940972328, -6.35304907043195, -8.616423620341436, -12.494656735974047]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [15.181442621193787, 14.916221196796219, 11.944324268832348, 10.587678821167167]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [18.003259161395505, 17.566106544033545, 14.186562761812041, 10.772672681175067]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.874878277100605, 1.8597282094117005, 1.530079502932432, 1.4150269154850217]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.2974550548344226, 2.2874878128356713, 1.876497029441963, 1.4529916490669659]}}