{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:29:28.918811", "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": "2022-Feb-16_to_2022-Feb-22_203.5_-74.0"}, "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": 2022020001896}, "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": "February 16 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 22 2022"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 7}, "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": 130550.39322044668}, "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": ["Antarctica"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["W.Antarctica"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Antarctica"]}, "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": ["Southern 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": -74.0}, "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": 203.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "203.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 199.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 211.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -77.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -72.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-02-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-161.03, -75.53], [-161.25, -75.0], [-161.03, -74.47], [-160.5, -74.25], [-160.25, -74.35], [-160.0, -74.25], [-159.75, -74.35], [-159.68, -74.32], [-159.53, -73.97], [-159.0, -73.75], [-158.75, -73.85], [-158.5, -73.75], [-158.25, -73.85], [-158.0, -73.75], [-157.75, -73.85], [-157.5, -73.75], [-157.25, -73.85], [-157.18, -73.82], [-157.03, -73.47], [-156.5, -73.25], [-156.25, -73.35], [-156.0, -73.25], [-155.75, -73.35], [-155.5, -73.25], [-155.25, -73.35], [-155.0, -73.25], [-154.75, -73.35], [-154.68, -73.32], [-154.65, -73.25], [-154.75, -73.0], [-154.53, -72.47], [-154.0, -72.25], [-153.75, -72.35], [-153.5, -72.25], [-153.25, -72.35], [-153.0, -72.25], [-152.75, -72.35], [-152.5, -72.25], [-152.25, -72.35], [-152.0, -72.25], [-151.47, -72.47], [-151.25, -73.0], [-151.37, -73.3], [-150.97, -73.47], [-150.75, -74.0], [-150.97, -74.53], [-151.5, -74.75], [-151.75, -74.65], [-151.82, -74.68], [-151.97, -75.03], [-152.5, -75.25], [-152.75, -75.15], [-153.0, -75.25], [-153.25, -75.15], [-153.5, -75.25], [-153.75, -75.15], [-153.82, -75.18], [-153.97, -75.53], [-154.32, -75.68], [-154.47, -76.03], [-155.0, -76.25], [-155.25, -76.15], [-155.5, -76.25], [-155.75, -76.15], [-156.0, -76.25], [-156.25, -76.15], [-156.5, -76.25], [-156.75, -76.15], [-157.0, -76.25], [-157.25, -76.15], [-157.5, -76.25], [-157.75, -76.15], [-158.0, -76.25], [-158.25, -76.15], [-158.5, -76.25], [-158.75, -76.15], [-159.0, -76.25], [-159.53, -76.03], [-159.68, -75.68], [-159.75, -75.65], [-160.0, -75.75], [-160.25, -75.65], [-160.5, -75.75], [-161.03, -75.53]]]]}, "2022-02-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-161.03, -75.53], [-161.25, -75.0], [-161.03, -74.47], [-160.5, -74.25], [-160.25, -74.35], [-160.0, -74.25], [-159.75, -74.35], [-159.68, -74.32], [-159.53, -73.97], [-159.0, -73.75], [-158.75, -73.85], [-158.5, -73.75], [-158.25, -73.85], [-158.0, -73.75], [-157.75, -73.85], [-157.5, -73.75], [-157.25, -73.85], [-157.18, -73.82], [-157.03, -73.47], [-156.5, -73.25], [-156.25, -73.35], [-156.0, -73.25], [-155.75, -73.35], [-155.5, -73.25], [-155.25, -73.35], [-155.0, -73.25], [-154.75, -73.35], [-154.68, -73.32], [-154.65, -73.25], [-154.75, -73.0], [-154.53, -72.47], [-154.0, -72.25], [-153.75, -72.35], [-153.5, -72.25], [-153.25, -72.35], [-153.0, -72.25], [-152.75, -72.35], [-152.5, -72.25], [-152.25, -72.35], [-152.0, -72.25], [-151.47, -72.47], [-151.25, -73.0], [-151.37, -73.3], [-151.25, -73.35], [-151.0, -73.25], [-150.47, -73.47], [-150.25, -74.0], [-150.35, -74.25], [-150.25, -74.5], [-150.47, -75.03], [-151.0, -75.25], [-151.25, -75.15], [-151.32, -75.18], [-151.47, -75.53], [-152.0, -75.75], [-152.25, -75.65], [-152.5, -75.75], [-152.75, -75.65], [-152.82, -75.68], [-152.97, -76.03], [-153.5, -76.25], [-153.75, -76.15], [-154.0, -76.25], [-154.25, -76.15], [-154.32, -76.18], [-154.47, -76.53], [-155.0, -76.75], [-155.25, -76.65], [-155.32, -76.68], [-155.47, -77.03], [-156.0, -77.25], [-156.25, -77.15], [-156.5, -77.25], [-156.75, -77.15], [-157.0, -77.25], [-157.25, -77.15], [-157.5, -77.25], [-158.03, -77.03], [-158.25, -76.5], [-158.12, -76.2], [-158.25, -76.15], [-158.5, -76.25], [-158.75, -76.15], [-159.0, -76.25], [-159.53, -76.03], [-159.68, -75.68], [-159.75, -75.65], [-160.0, -75.75], [-160.25, -75.65], [-160.5, -75.75], [-161.03, -75.53]]]]}, "2022-02-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-161.03, -75.53], [-161.25, -75.0], [-161.03, -74.47], [-160.5, -74.25], [-160.25, -74.35], [-160.0, -74.25], [-159.75, -74.35], [-159.68, -74.32], [-159.53, -73.97], [-159.0, -73.75], [-158.75, -73.85], [-158.5, -73.75], [-158.25, -73.85], [-158.0, -73.75], [-157.75, -73.85], [-157.5, -73.75], [-157.25, -73.85], [-157.18, -73.82], [-157.03, -73.47], [-156.5, -73.25], [-156.25, -73.35], [-156.0, -73.25], [-155.75, -73.35], [-155.5, -73.25], [-155.25, -73.35], [-155.0, -73.25], [-154.75, -73.35], [-154.68, -73.32], [-154.65, -73.25], [-154.75, -73.0], [-154.53, -72.47], [-154.0, -72.25], [-153.75, -72.35], [-153.5, -72.25], [-153.25, -72.35], [-153.0, -72.25], [-152.75, -72.35], [-152.5, -72.25], [-152.25, -72.35], [-152.0, -72.25], [-151.47, -72.47], [-151.25, -73.0], [-151.37, -73.3], [-151.25, -73.35], [-151.0, -73.25], [-150.47, -73.47], [-150.25, -74.0], [-150.35, -74.25], [-150.25, -74.5], [-150.35, -74.75], [-150.25, -75.0], [-150.47, -75.53], [-151.0, -75.75], [-151.25, -75.65], [-151.5, -75.75], [-151.75, -75.65], [-151.82, -75.68], [-151.85, -75.75], [-151.75, -76.0], [-151.85, -76.25], [-151.75, -76.5], [-151.85, -76.75], [-151.75, -77.0], [-151.97, -77.53], [-152.5, -77.75], [-152.75, -77.65], [-153.0, -77.75], [-153.25, -77.65], [-153.5, -77.75], [-153.75, -77.65], [-154.0, -77.75], [-154.25, -77.65], [-154.5, -77.75], [-154.75, -77.65], [-155.0, -77.75], [-155.25, -77.65], [-155.5, -77.75], [-155.75, -77.65], [-156.0, -77.75], [-156.53, -77.53], [-156.68, -77.18], [-156.75, -77.15], [-157.0, -77.25], [-157.25, -77.15], [-157.5, -77.25], [-158.03, -77.03], [-158.25, -76.5], [-158.12, -76.2], [-158.25, -76.15], [-158.5, -76.25], [-158.75, -76.15], [-159.0, -76.25], [-159.53, -76.03], [-159.68, -75.68], [-159.75, -75.65], [-160.0, -75.75], [-160.25, -75.65], [-160.5, -75.75], [-161.03, -75.53]]]]}, "2022-02-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-161.03, -75.53], [-161.25, -75.0], [-161.03, -74.47], [-160.5, -74.25], [-160.25, -74.35], [-160.18, -74.32], [-160.03, -73.97], [-159.68, -73.82], [-159.53, -73.47], [-159.0, -73.25], [-158.75, -73.35], [-158.68, -73.32], [-158.53, -72.97], [-158.0, -72.75], [-157.75, -72.85], [-157.68, -72.82], [-157.53, -72.47], [-157.0, -72.25], [-156.75, -72.35], [-156.5, -72.25], [-156.25, -72.35], [-156.0, -72.25], [-155.75, -72.35], [-155.5, -72.25], [-155.25, -72.35], [-155.0, -72.25], [-154.75, -72.35], [-154.68, -72.32], [-154.53, -71.97], [-154.0, -71.75], [-153.75, -71.85], [-153.5, -71.75], [-153.25, -71.85], [-153.0, -71.75], [-152.75, -71.85], [-152.5, -71.75], [-152.25, -71.85], [-152.0, -71.75], [-151.75, -71.85], [-151.5, -71.75], [-151.25, -71.85], [-151.0, -71.75], [-150.75, -71.85], [-150.5, -71.75], [-149.97, -71.97], [-149.75, -72.5], [-149.97, -73.03], [-150.32, -73.18], [-150.35, -73.25], [-150.25, -73.5], [-150.35, -73.75], [-150.25, -74.0], [-150.35, -74.25], [-150.32, -74.32], [-149.97, -74.47], [-149.82, -74.82], [-149.75, -74.85], [-149.5, -74.75], [-148.97, -74.97], [-148.75, -75.5], [-148.87, -75.8], [-148.47, -75.97], [-148.25, -76.5], [-148.35, -76.75], [-148.25, -77.0], [-148.47, -77.53], [-149.0, -77.75], [-149.25, -77.65], [-149.5, -77.75], [-149.75, -77.65], [-149.82, -77.68], [-149.97, -78.03], [-150.5, -78.25], [-151.03, -78.03], [-151.18, -77.68], [-151.25, -77.65], [-151.32, -77.68], [-151.47, -78.03], [-152.0, -78.25], [-152.25, -78.15], [-152.5, -78.25], [-152.75, -78.15], [-153.0, -78.25], [-153.53, -78.03], [-153.68, -77.68], [-153.75, -77.65], [-154.0, -77.75], [-154.25, -77.65], [-154.5, -77.75], [-154.75, -77.65], [-155.0, -77.75], [-155.25, -77.65], [-155.5, -77.75], [-155.75, -77.65], [-156.0, -77.75], [-156.53, -77.53], [-156.68, -77.18], [-156.75, -77.15], [-157.0, -77.25], [-157.25, -77.15], [-157.5, -77.25], [-158.03, -77.03], [-158.25, -76.5], [-158.12, -76.2], [-158.25, -76.15], [-158.5, -76.25], [-158.75, -76.15], [-159.0, -76.25], [-159.53, -76.03], [-159.68, -75.68], [-159.75, -75.65], [-160.0, -75.75], [-160.25, -75.65], [-160.5, -75.75], [-161.03, -75.53]]]]}, "2022-02-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-161.03, -75.53], [-161.25, -75.0], [-161.03, -74.47], [-160.5, -74.25], [-160.25, -74.35], [-160.18, -74.32], [-160.03, -73.97], [-159.68, -73.82], [-159.53, -73.47], [-159.0, -73.25], [-158.75, -73.35], [-158.68, -73.32], [-158.53, -72.97], [-158.0, -72.75], [-157.75, -72.85], [-157.68, -72.82], [-157.53, -72.47], [-157.0, -72.25], [-156.75, -72.35], [-156.5, -72.25], [-156.25, -72.35], [-156.0, -72.25], [-155.75, -72.35], [-155.5, -72.25], [-155.25, -72.35], [-155.0, -72.25], [-154.75, -72.35], [-154.68, -72.32], [-154.53, -71.97], [-154.0, -71.75], [-153.75, -71.85], [-153.5, -71.75], [-153.25, -71.85], [-153.0, -71.75], [-152.75, -71.85], [-152.5, -71.75], [-152.25, -71.85], [-152.0, -71.75], [-151.75, -71.85], [-151.5, -71.75], [-151.25, -71.85], [-151.0, -71.75], [-150.75, -71.85], [-150.5, -71.75], [-149.97, -71.97], [-149.75, -72.5], [-149.97, -73.03], [-150.32, -73.18], [-150.35, -73.25], [-150.25, -73.5], [-150.35, -73.75], [-150.25, -74.0], [-150.35, -74.25], [-150.32, -74.32], [-149.97, -74.47], [-149.82, -74.82], [-149.75, -74.85], [-149.5, -74.75], [-148.97, -74.97], [-148.75, -75.5], [-148.87, -75.8], [-148.47, -75.97], [-148.25, -76.5], [-148.35, -76.75], [-148.25, -77.0], [-148.47, -77.53], [-149.0, -77.75], [-149.25, -77.65], [-149.5, -77.75], [-149.75, -77.65], [-149.82, -77.68], [-149.97, -78.03], [-150.5, -78.25], [-151.03, -78.03], [-151.18, -77.68], [-151.25, -77.65], [-151.32, -77.68], [-151.47, -78.03], [-152.0, -78.25], [-152.25, -78.15], [-152.5, -78.25], [-152.75, -78.15], [-153.0, -78.25], [-153.53, -78.03], [-153.68, -77.68], [-153.75, -77.65], [-154.0, -77.75], [-154.25, -77.65], [-154.5, -77.75], [-154.75, -77.65], [-155.0, -77.75], [-155.25, -77.65], [-155.5, -77.75], [-155.75, -77.65], [-156.0, -77.75], [-156.53, -77.53], [-156.68, -77.18], [-156.75, -77.15], [-157.0, -77.25], [-157.25, -77.15], [-157.5, -77.25], [-158.03, -77.03], [-158.25, -76.5], [-158.12, -76.2], [-158.25, -76.15], [-158.5, -76.25], [-158.75, -76.15], [-159.0, -76.25], [-159.53, -76.03], [-159.68, -75.68], [-159.75, -75.65], [-160.0, -75.75], [-160.25, -75.65], [-160.5, -75.75], [-161.03, -75.53]]]]}, "2022-02-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-160.25, -74.5], [-160.03, -73.97], [-159.68, -73.82], [-159.53, -73.47], [-159.0, -73.25], [-158.75, -73.35], [-158.68, -73.32], [-158.53, -72.97], [-158.0, -72.75], [-157.75, -72.85], [-157.68, -72.82], [-157.53, -72.47], [-157.0, -72.25], [-156.75, -72.35], [-156.5, -72.25], [-156.25, -72.35], [-156.0, -72.25], [-155.75, -72.35], [-155.5, -72.25], [-155.25, -72.35], [-155.0, -72.25], [-154.75, -72.35], [-154.68, -72.32], [-154.53, -71.97], [-154.0, -71.75], [-153.75, -71.85], [-153.5, -71.75], [-153.25, -71.85], [-153.0, -71.75], [-152.75, -71.85], [-152.5, -71.75], [-152.25, -71.85], [-152.0, -71.75], [-151.75, -71.85], [-151.5, -71.75], [-151.25, -71.85], [-151.0, -71.75], [-150.75, -71.85], [-150.5, -71.75], [-149.97, -71.97], [-149.75, -72.5], [-149.97, -73.03], [-150.32, -73.18], [-150.35, -73.25], [-150.25, -73.5], [-150.35, -73.75], [-150.25, -74.0], [-150.35, -74.25], [-150.32, -74.32], [-149.97, -74.47], [-149.82, -74.82], [-149.75, -74.85], [-149.5, -74.75], [-148.97, -74.97], [-148.75, -75.5], [-148.87, -75.8], [-148.47, -75.97], [-148.25, -76.5], [-148.35, -76.75], [-148.25, -77.0], [-148.47, -77.53], [-149.0, -77.75], [-149.25, -77.65], [-149.5, -77.75], [-149.75, -77.65], [-149.82, -77.68], [-149.97, -78.03], [-150.5, -78.25], [-151.03, -78.03], [-151.18, -77.68], [-151.25, -77.65], [-151.32, -77.68], [-151.47, -78.03], [-152.0, -78.25], [-152.25, -78.15], [-152.5, -78.25], [-152.75, -78.15], [-153.0, -78.25], [-153.53, -78.03], [-153.68, -77.68], [-153.75, -77.65], [-154.0, -77.75], [-154.53, -77.53], [-154.68, -77.18], [-155.03, -77.03], [-155.18, -76.68], [-155.53, -76.53], [-155.68, -76.18], [-156.03, -76.03], [-156.18, -75.68], [-156.53, -75.53], [-156.68, -75.18], [-156.75, -75.15], [-157.0, -75.25], [-157.25, -75.15], [-157.5, -75.25], [-157.75, -75.15], [-157.82, -75.18], [-157.97, -75.53], [-158.5, -75.75], [-158.75, -75.65], [-159.0, -75.75], [-159.53, -75.53], [-159.68, -75.18], [-160.03, -75.03], [-160.25, -74.5]]]]}, "2022-02-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-159.53, -74.53], [-159.75, -74.0], [-159.53, -73.47], [-159.0, -73.25], [-158.75, -73.35], [-158.68, -73.32], [-158.53, -72.97], [-158.0, -72.75], [-157.75, -72.85], [-157.68, -72.82], [-157.53, -72.47], [-157.0, -72.25], [-156.75, -72.35], [-156.5, -72.25], [-156.25, -72.35], [-156.0, -72.25], [-155.75, -72.35], [-155.5, -72.25], [-155.25, -72.35], [-155.0, -72.25], [-154.75, -72.35], [-154.68, -72.32], [-154.53, -71.97], [-154.0, -71.75], [-153.75, -71.85], [-153.5, -71.75], [-153.25, -71.85], [-153.0, -71.75], [-152.75, -71.85], [-152.5, -71.75], [-152.25, -71.85], [-152.0, -71.75], [-151.75, -71.85], [-151.5, -71.75], [-150.97, -71.97], [-150.75, -72.5], [-150.97, -73.03], [-151.5, -73.25], [-151.75, -73.15], [-151.82, -73.18], [-151.97, -73.53], [-152.5, -73.75], [-152.75, -73.65], [-153.0, -73.75], [-153.25, -73.65], [-153.5, -73.75], [-153.75, -73.65], [-154.0, -73.75], [-154.25, -73.65], [-154.5, -73.75], [-154.75, -73.65], [-154.82, -73.68], [-154.97, -74.03], [-155.5, -74.25], [-155.75, -74.15], [-155.82, -74.18], [-155.97, -74.53], [-156.5, -74.75], [-156.75, -74.65], [-157.0, -74.75], [-157.25, -74.65], [-157.5, -74.75], [-157.75, -74.65], [-158.0, -74.75], [-158.25, -74.65], [-158.5, -74.75], [-158.75, -74.65], [-159.0, -74.75], [-159.53, -74.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 10.190142592594157}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.2773815458160938}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-0.8811062604380595, -0.731834324029478, -1.1472559906196693, -1.1303500851957438, -0.984105725114091, -1.3609551905247486, -0.9585920931771739]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-0.5906225921822852, -0.46640068238599497, -0.7191031644978239, -0.1595804273357544, -0.233288047863482, -0.5908846637219085, -0.6258712142657714]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.300234563608126, 2.724514420667001, 2.9176522718222317, 3.490241638696522, 3.815585609984654, 3.545583177358158, 2.3167827984944376]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.5975987641230063, 3.294928237999102, 5.320243062603652, 8.405920028958576, 9.61393843615258, 10.190142592594157, 2.581657091196689]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.322713319255041, 1.4400184145972417, 1.338624257374923, 1.4486871919488273, 1.512143836867671, 1.3228843135009447, 1.230566796614202]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.502811900053331, 1.6860139382529142, 1.5216627221646868, 1.8354961550932618, 1.8508787384471443, 1.6943853879811215, 1.2824304809122287]}}