{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:51:05.079988", "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": "2012-Jul-23_to_2012-Jul-28_304.0_47.0"}, "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": 2012070002834}, "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 23 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 28 2012"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 59787.812252327145}, "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": ["E.North-America", "N.Atlantic-Ocean"]}, "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": ["Gulf of St. Lawrence", "North Atlantic Ocean"]}, "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": 47.0}, "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": 304.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "304.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 302.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 307.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 44.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 47.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-07-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-57.03, 46.47], [-57.25, 47.0], [-57.03, 47.53], [-56.5, 47.75], [-56.25, 47.65], [-56.0, 47.75], [-55.47, 47.53], [-55.25, 47.0], [-55.47, 46.47], [-56.0, 46.25], [-56.25, 46.35], [-56.5, 46.25], [-57.03, 46.47]]]]}, "2012-07-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-57.75, 47.0], [-57.53, 47.53], [-57.18, 47.68], [-57.03, 48.03], [-56.5, 48.25], [-56.25, 48.15], [-56.0, 48.25], [-55.47, 48.03], [-55.25, 47.5], [-55.35, 47.25], [-55.32, 47.18], [-55.25, 47.15], [-55.18, 47.18], [-55.03, 47.53], [-54.68, 47.68], [-54.53, 48.03], [-54.0, 48.25], [-53.47, 48.03], [-53.25, 47.5], [-53.37, 47.2], [-53.25, 47.15], [-53.0, 47.25], [-52.47, 47.03], [-52.25, 46.5], [-52.35, 46.25], [-52.25, 46.0], [-52.47, 45.47], [-53.0, 45.25], [-53.25, 45.35], [-53.5, 45.25], [-53.75, 45.35], [-54.0, 45.25], [-54.25, 45.35], [-54.5, 45.25], [-54.75, 45.35], [-55.0, 45.25], [-55.25, 45.35], [-55.5, 45.25], [-55.75, 45.35], [-56.0, 45.25], [-56.53, 45.47], [-56.68, 45.82], [-57.03, 45.97], [-57.18, 46.32], [-57.53, 46.47], [-57.75, 47.0]]]]}, "2012-07-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-57.75, 47.0], [-57.53, 47.53], [-57.18, 47.68], [-57.03, 48.03], [-56.5, 48.25], [-56.25, 48.15], [-56.0, 48.25], [-55.47, 48.03], [-55.25, 47.5], [-55.35, 47.25], [-55.32, 47.18], [-55.25, 47.15], [-55.18, 47.18], [-55.03, 47.53], [-54.68, 47.68], [-54.53, 48.03], [-54.0, 48.25], [-53.47, 48.03], [-53.25, 47.5], [-53.37, 47.2], [-53.25, 47.15], [-53.0, 47.25], [-52.47, 47.03], [-52.25, 46.5], [-52.35, 46.25], [-52.25, 46.0], [-52.47, 45.47], [-52.82, 45.32], [-52.97, 44.97], [-53.5, 44.75], [-53.75, 44.85], [-53.82, 44.82], [-53.97, 44.47], [-54.5, 44.25], [-54.75, 44.35], [-55.0, 44.25], [-55.53, 44.47], [-55.75, 45.0], [-55.65, 45.25], [-55.68, 45.32], [-55.75, 45.35], [-56.0, 45.25], [-56.53, 45.47], [-56.68, 45.82], [-57.03, 45.97], [-57.18, 46.32], [-57.53, 46.47], [-57.75, 47.0]]]]}, "2012-07-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-57.75, 47.0], [-57.53, 47.53], [-57.18, 47.68], [-57.03, 48.03], [-56.5, 48.25], [-56.25, 48.15], [-56.0, 48.25], [-55.47, 48.03], [-55.25, 47.5], [-55.35, 47.25], [-55.32, 47.18], [-55.25, 47.15], [-55.18, 47.18], [-55.03, 47.53], [-54.68, 47.68], [-54.53, 48.03], [-54.0, 48.25], [-53.47, 48.03], [-53.25, 47.5], [-53.37, 47.2], [-53.25, 47.15], [-53.0, 47.25], [-52.47, 47.03], [-52.25, 46.5], [-52.35, 46.25], [-52.25, 46.0], [-52.47, 45.47], [-52.82, 45.32], [-52.97, 44.97], [-53.5, 44.75], [-53.75, 44.85], [-53.82, 44.82], [-53.97, 44.47], [-54.5, 44.25], [-54.75, 44.35], [-55.0, 44.25], [-55.53, 44.47], [-55.75, 45.0], [-55.65, 45.25], [-55.68, 45.32], [-55.75, 45.35], [-56.0, 45.25], [-56.53, 45.47], [-56.68, 45.82], [-57.03, 45.97], [-57.18, 46.32], [-57.53, 46.47], [-57.75, 47.0]]]]}, "2012-07-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-57.25, 47.0], [-57.03, 47.53], [-56.5, 47.75], [-56.25, 47.65], [-56.0, 47.75], [-55.47, 47.53], [-55.32, 47.18], [-55.25, 47.15], [-55.18, 47.18], [-55.03, 47.53], [-54.68, 47.68], [-54.53, 48.03], [-54.0, 48.25], [-53.47, 48.03], [-53.25, 47.5], [-53.37, 47.2], [-53.25, 47.15], [-53.0, 47.25], [-52.47, 47.03], [-52.25, 46.5], [-52.35, 46.25], [-52.25, 46.0], [-52.47, 45.47], [-52.82, 45.32], [-52.97, 44.97], [-53.5, 44.75], [-53.75, 44.85], [-53.82, 44.82], [-53.97, 44.47], [-54.5, 44.25], [-54.75, 44.35], [-55.0, 44.25], [-55.53, 44.47], [-55.75, 45.0], [-55.65, 45.25], [-55.68, 45.32], [-56.03, 45.47], [-56.18, 45.82], [-56.53, 45.97], [-56.68, 46.32], [-57.03, 46.47], [-57.25, 47.0]]]]}, "2012-07-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-57.03, 46.47], [-57.25, 47.0], [-57.03, 47.53], [-56.5, 47.75], [-56.25, 47.65], [-56.0, 47.75], [-55.47, 47.53], [-55.32, 47.18], [-55.25, 47.15], [-55.18, 47.18], [-55.03, 47.53], [-54.5, 47.75], [-53.97, 47.53], [-53.82, 47.18], [-53.75, 47.15], [-53.5, 47.25], [-53.25, 47.15], [-53.0, 47.25], [-52.47, 47.03], [-52.25, 46.5], [-52.47, 45.97], [-52.82, 45.82], [-52.85, 45.75], [-52.75, 45.5], [-52.97, 44.97], [-53.5, 44.75], [-53.75, 44.85], [-54.0, 44.75], [-54.53, 44.97], [-54.75, 45.5], [-54.65, 45.75], [-54.68, 45.82], [-54.75, 45.85], [-55.0, 45.75], [-55.25, 45.85], [-55.5, 45.75], [-56.03, 45.97], [-56.18, 46.32], [-56.25, 46.35], [-56.5, 46.25], [-57.03, 46.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.4386274588208607}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.586850616109227}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [16.531313044083902, 16.832150481867018, 17.48213745322323, 17.639495902845397, 17.393352571958133, 17.223460355859288]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [16.68904867703077, 17.590662829501355, 19.119472014920518, 19.53552955646768, 19.079101231973993, 17.9746962900615]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.8408463568653133, 2.376575680672369, 2.74662436494215, 2.7811143787364716, 2.4870560059883062, 2.4714877553396244]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.84612211269922, 2.5890409486374324, 3.0826074996833768, 3.4386274588208607, 2.894869728648814, 3.033311862446567]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.2375944358058737, 1.4372833277599797, 1.571147611925553, 1.5485333915757789, 1.357125693689349, 1.430975357587767]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.25398064825513, 1.6633857836063877, 1.9023938839257208, 1.7598813693550615, 1.472833192076022, 1.74629056429567]}}