{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:10:35.536331", "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": "2018-Mar-31_to_2018-Apr-04_91.0_-76.5"}, "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": 2018030002905}, "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": "March 31 2018"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 04 2018"}, "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": 221240.0733332416}, "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": ["E.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": []}, "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": -76.5}, "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": 91.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "91.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 77.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 95.75}, "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": -70.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2018-03-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[80.75, -71.0], [80.97, -70.47], [81.5, -70.25], [81.75, -70.35], [82.0, -70.25], [82.25, -70.35], [82.5, -70.25], [82.75, -70.35], [83.0, -70.25], [83.25, -70.35], [83.5, -70.25], [83.75, -70.35], [84.0, -70.25], [84.25, -70.35], [84.5, -70.25], [84.75, -70.35], [85.0, -70.25], [85.25, -70.35], [85.5, -70.25], [85.75, -70.35], [86.0, -70.25], [86.53, -70.47], [86.68, -70.82], [86.75, -70.85], [87.0, -70.75], [87.25, -70.85], [87.5, -70.75], [88.03, -70.97], [88.18, -71.32], [88.25, -71.35], [88.5, -71.25], [89.03, -71.47], [89.18, -71.82], [89.53, -71.97], [89.68, -72.32], [90.03, -72.47], [90.18, -72.82], [90.53, -72.97], [90.68, -73.32], [91.03, -73.47], [91.18, -73.82], [91.25, -73.85], [91.5, -73.75], [92.03, -73.97], [92.18, -74.32], [92.25, -74.35], [92.5, -74.25], [92.75, -74.35], [93.0, -74.25], [93.25, -74.35], [93.5, -74.25], [93.75, -74.35], [94.0, -74.25], [94.53, -74.47], [94.68, -74.82], [94.75, -74.85], [95.0, -74.75], [95.53, -74.97], [95.68, -75.32], [96.03, -75.47], [96.25, -76.0], [96.15, -76.25], [96.25, -76.5], [96.03, -77.03], [95.5, -77.25], [94.97, -77.03], [94.82, -76.68], [94.75, -76.65], [94.5, -76.75], [94.25, -76.65], [94.0, -76.75], [93.75, -76.65], [93.5, -76.75], [93.25, -76.65], [93.0, -76.75], [92.75, -76.65], [92.5, -76.75], [92.25, -76.65], [92.18, -76.68], [92.03, -77.03], [91.5, -77.25], [91.25, -77.15], [91.0, -77.25], [90.75, -77.15], [90.5, -77.25], [90.25, -77.15], [90.0, -77.25], [89.75, -77.15], [89.5, -77.25], [88.97, -77.03], [88.82, -76.68], [88.75, -76.65], [88.5, -76.75], [88.25, -76.65], [88.0, -76.75], [87.75, -76.65], [87.5, -76.75], [87.25, -76.65], [87.0, -76.75], [86.75, -76.65], [86.5, -76.75], [86.25, -76.65], [86.0, -76.75], [85.75, -76.65], [85.5, -76.75], [85.25, -76.65], [85.0, -76.75], [84.75, -76.65], [84.5, -76.75], [83.97, -76.53], [83.75, -76.0], [83.85, -75.75], [83.75, -75.5], [83.96, -75.0], [83.82, -74.68], [83.75, -74.65], [83.5, -74.75], [83.25, -74.65], [83.0, -74.75], [82.47, -74.53], [82.25, -74.0], [82.35, -73.75], [82.25, -73.5], [82.35, -73.25], [82.32, -73.18], [81.97, -73.03], [81.75, -72.5], [81.85, -72.25], [81.82, -72.18], [81.47, -72.03], [81.32, -71.68], [80.97, -71.53], [80.75, -71.0]]]]}, "2018-04-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[77.25, -73.5], [77.47, -72.97], [78.0, -72.75], [78.25, -72.85], [78.5, -72.75], [78.75, -72.85], [79.0, -72.75], [79.25, -72.85], [79.32, -72.82], [79.47, -72.47], [80.0, -72.25], [80.53, -72.47], [80.68, -72.82], [80.75, -72.85], [81.0, -72.75], [81.25, -72.85], [81.5, -72.75], [81.75, -72.85], [81.88, -72.8], [81.75, -72.5], [81.85, -72.25], [81.82, -72.18], [81.47, -72.03], [81.32, -71.68], [80.97, -71.53], [80.75, -71.0], [80.97, -70.47], [81.5, -70.25], [81.75, -70.35], [82.0, -70.25], [82.25, -70.35], [82.5, -70.25], [82.75, -70.35], [83.0, -70.25], [83.25, -70.35], [83.5, -70.25], [83.75, -70.35], [84.0, -70.25], [84.25, -70.35], [84.5, -70.25], [84.75, -70.35], [85.0, -70.25], [85.25, -70.35], [85.5, -70.25], [85.75, -70.35], [86.0, -70.25], [86.53, -70.47], [86.68, -70.82], [86.75, -70.85], [87.0, -70.75], [87.25, -70.85], [87.5, -70.75], [88.03, -70.97], [88.18, -71.32], [88.25, -71.35], [88.5, -71.25], [89.03, -71.47], [89.18, -71.82], [89.53, -71.97], [89.68, -72.32], [90.03, -72.47], [90.18, -72.82], [90.53, -72.97], [90.68, -73.32], [91.03, -73.47], [91.18, -73.82], [91.25, -73.85], [91.5, -73.75], [92.03, -73.97], [92.18, -74.32], [92.25, -74.35], [92.5, -74.25], [92.75, -74.35], [93.0, -74.25], [93.25, -74.35], [93.5, -74.25], [93.75, -74.35], [94.0, -74.25], [94.53, -74.47], [94.68, -74.82], [94.75, -74.85], [95.0, -74.75], [95.53, -74.97], [95.68, -75.32], [96.03, -75.47], [96.25, -76.0], [96.15, -76.25], [96.25, -76.5], [96.03, -77.03], [95.5, -77.25], [94.97, -77.03], [94.82, -76.68], [94.75, -76.65], [94.5, -76.75], [94.25, -76.65], [94.0, -76.75], [93.75, -76.65], [93.5, -76.75], [93.25, -76.65], [93.0, -76.75], [92.75, -76.65], [92.5, -76.75], [92.25, -76.65], [92.18, -76.68], [92.03, -77.03], [91.5, -77.25], [91.25, -77.15], [91.0, -77.25], [90.75, -77.15], [90.5, -77.25], [90.25, -77.15], [90.0, -77.25], [89.75, -77.15], [89.5, -77.25], [88.97, -77.03], [88.82, -76.68], [88.75, -76.65], [88.5, -76.75], [88.25, -76.65], [88.0, -76.75], [87.75, -76.65], [87.5, -76.75], [87.25, -76.65], [87.0, -76.75], [86.75, -76.65], [86.5, -76.75], [86.25, -76.65], [86.0, -76.75], [85.75, -76.65], [85.5, -76.75], [85.25, -76.65], [85.0, -76.75], [84.75, -76.65], [84.5, -76.75], [84.25, -76.65], [84.0, -76.75], [83.75, -76.65], [83.5, -76.75], [82.97, -76.53], [82.82, -76.18], [82.75, -76.15], [82.5, -76.25], [82.25, -76.15], [82.0, -76.25], [81.75, -76.15], [81.5, -76.25], [81.25, -76.15], [81.0, -76.25], [80.75, -76.15], [80.5, -76.25], [80.25, -76.15], [80.0, -76.25], [79.47, -76.03], [79.32, -75.68], [79.25, -75.65], [79.0, -75.75], [78.75, -75.65], [78.5, -75.75], [77.97, -75.53], [77.75, -75.0], [77.85, -74.75], [77.75, -74.5], [77.85, -74.25], [77.82, -74.18], [77.47, -74.03], [77.25, -73.5]]]]}, "2018-04-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[77.25, -73.5], [77.47, -72.97], [78.0, -72.75], [78.25, -72.85], [78.5, -72.75], [78.75, -72.85], [79.0, -72.75], [79.25, -72.85], [79.32, -72.82], [79.47, -72.47], [80.0, -72.25], [80.53, -72.47], [80.68, -72.82], [80.75, -72.85], [81.0, -72.75], [81.25, -72.85], [81.5, -72.75], [81.75, -72.85], [81.88, -72.8], [81.75, -72.5], [81.85, -72.25], [81.82, -72.18], [81.47, -72.03], [81.32, -71.68], [80.97, -71.53], [80.75, -71.0], [80.97, -70.47], [81.5, -70.25], [81.75, -70.35], [82.0, -70.25], [82.25, -70.35], [82.5, -70.25], [82.75, -70.35], [83.0, -70.25], [83.25, -70.35], [83.5, -70.25], [83.75, -70.35], [84.0, -70.25], [84.25, -70.35], [84.5, -70.25], [84.75, -70.35], [85.0, -70.25], [85.25, -70.35], [85.5, -70.25], [85.75, -70.35], [86.0, -70.25], [86.53, -70.47], [86.68, -70.82], [86.75, -70.85], [87.0, -70.75], [87.25, -70.85], [87.5, -70.75], [88.03, -70.97], [88.18, -71.32], [88.25, -71.35], [88.5, -71.25], [89.03, -71.47], [89.18, -71.82], [89.53, -71.97], [89.68, -72.32], [90.03, -72.47], [90.18, -72.82], [90.53, -72.97], [90.68, -73.32], [91.03, -73.47], [91.18, -73.82], [91.25, -73.85], [91.5, -73.75], [92.03, -73.97], [92.18, -74.32], [92.25, -74.35], [92.5, -74.25], [92.75, -74.35], [93.0, -74.25], [93.25, -74.35], [93.5, -74.25], [93.75, -74.35], [94.0, -74.25], [94.53, -74.47], [94.68, -74.82], [94.75, -74.85], [95.0, -74.75], [95.53, -74.97], [95.68, -75.32], [96.03, -75.47], [96.25, -76.0], [96.15, -76.25], [96.25, -76.5], [96.03, -77.03], [95.5, -77.25], [95.25, -77.15], [95.0, -77.25], [94.75, -77.15], [94.68, -77.18], [94.53, -77.53], [94.0, -77.75], [93.75, -77.65], [93.5, -77.75], [93.25, -77.65], [93.0, -77.75], [92.75, -77.65], [92.5, -77.75], [92.25, -77.65], [92.0, -77.75], [91.75, -77.65], [91.5, -77.75], [91.25, -77.65], [91.18, -77.68], [91.03, -78.03], [90.5, -78.25], [90.25, -78.15], [90.0, -78.25], [89.75, -78.15], [89.5, -78.25], [89.25, -78.15], [89.0, -78.25], [88.75, -78.15], [88.5, -78.25], [88.25, -78.15], [88.0, -78.25], [87.75, -78.15], [87.5, -78.25], [87.25, -78.15], [87.0, -78.25], [86.75, -78.15], [86.5, -78.25], [85.97, -78.03], [85.75, -77.5], [85.97, -76.97], [86.5, -76.75], [86.25, -76.65], [86.0, -76.75], [85.75, -76.65], [85.5, -76.75], [85.25, -76.65], [85.0, -76.75], [84.75, -76.65], [84.5, -76.75], [84.25, -76.65], [84.0, -76.75], [83.75, -76.65], [83.5, -76.75], [82.97, -76.53], [82.82, -76.18], [82.75, -76.15], [82.5, -76.25], [82.25, -76.15], [82.0, -76.25], [81.75, -76.15], [81.5, -76.25], [81.25, -76.15], [81.0, -76.25], [80.75, -76.15], [80.5, -76.25], [80.25, -76.15], [80.0, -76.25], [79.47, -76.03], [79.32, -75.68], [79.25, -75.65], [79.0, -75.75], [78.75, -75.65], [78.5, -75.75], [77.97, -75.53], [77.75, -75.0], [77.85, -74.75], [77.75, -74.5], [77.85, -74.25], [77.82, -74.18], [77.47, -74.03], [77.25, -73.5]], [[86.75, -76.85], [86.82, -76.82], [86.88, -76.7], [86.75, -76.65], [86.5, -76.75], [86.75, -76.85]]]]}, "2018-04-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[77.25, -73.5], [77.47, -72.97], [78.0, -72.75], [78.25, -72.85], [78.5, -72.75], [78.75, -72.85], [79.0, -72.75], [79.25, -72.85], [79.32, -72.82], [79.47, -72.47], [80.0, -72.25], [80.53, -72.47], [80.68, -72.82], [80.75, -72.85], [81.0, -72.75], [81.25, -72.85], [81.5, -72.75], [81.75, -72.85], [82.0, -72.75], [82.25, -72.85], [82.32, -72.82], [82.47, -72.47], [83.0, -72.25], [83.53, -72.47], [83.68, -72.82], [83.75, -72.85], [84.0, -72.75], [84.25, -72.85], [84.5, -72.75], [84.75, -72.85], [85.0, -72.75], [85.25, -72.85], [85.5, -72.75], [86.03, -72.97], [86.18, -73.32], [86.25, -73.35], [86.5, -73.25], [86.75, -73.35], [87.0, -73.25], [87.25, -73.35], [87.5, -73.25], [88.03, -73.47], [88.18, -73.82], [88.25, -73.85], [88.5, -73.75], [88.75, -73.85], [89.0, -73.75], [89.53, -73.97], [89.68, -74.32], [89.75, -74.35], [90.0, -74.25], [90.25, -74.35], [90.5, -74.25], [91.03, -74.47], [91.18, -74.82], [91.25, -74.85], [91.5, -74.75], [91.75, -74.85], [92.0, -74.75], [92.25, -74.85], [92.5, -74.75], [92.75, -74.85], [93.0, -74.75], [93.53, -74.97], [93.68, -75.32], [93.75, -75.35], [94.0, -75.25], [94.25, -75.35], [94.5, -75.25], [94.75, -75.35], [95.0, -75.25], [95.53, -75.47], [95.68, -75.82], [96.03, -75.97], [96.25, -76.5], [96.03, -77.03], [95.5, -77.25], [95.25, -77.15], [95.0, -77.25], [94.75, -77.15], [94.68, -77.18], [94.53, -77.53], [94.0, -77.75], [93.75, -77.65], [93.5, -77.75], [93.25, -77.65], [93.0, -77.75], [92.75, -77.65], [92.5, -77.75], [92.25, -77.65], [92.0, -77.75], [91.75, -77.65], [91.5, -77.75], [91.25, -77.65], [91.18, -77.68], [91.03, -78.03], [90.5, -78.25], [90.25, -78.15], [90.0, -78.25], [89.75, -78.15], [89.5, -78.25], [89.25, -78.15], [89.0, -78.25], [88.75, -78.15], [88.5, -78.25], [88.25, -78.15], [88.0, -78.25], [87.75, -78.15], [87.5, -78.25], [87.25, -78.15], [87.0, -78.25], [86.75, -78.15], [86.5, -78.25], [85.97, -78.03], [85.75, -77.5], [85.97, -76.97], [86.5, -76.75], [86.25, -76.65], [86.0, -76.75], [85.75, -76.65], [85.5, -76.75], [85.25, -76.65], [85.0, -76.75], [84.75, -76.65], [84.5, -76.75], [84.25, -76.65], [84.0, -76.75], [83.75, -76.65], [83.5, -76.75], [82.97, -76.53], [82.82, -76.18], [82.75, -76.15], [82.5, -76.25], [82.25, -76.15], [82.0, -76.25], [81.75, -76.15], [81.5, -76.25], [81.25, -76.15], [81.0, -76.25], [80.75, -76.15], [80.5, -76.25], [80.25, -76.15], [80.0, -76.25], [79.47, -76.03], [79.32, -75.68], [79.25, -75.65], [79.0, -75.75], [78.75, -75.65], [78.5, -75.75], [77.97, -75.53], [77.75, -75.0], [77.85, -74.75], [77.75, -74.5], [77.85, -74.25], [77.82, -74.18], [77.47, -74.03], [77.25, -73.5]], [[86.75, -76.85], [86.82, -76.82], [86.88, -76.7], [86.75, -76.65], [86.5, -76.75], [86.75, -76.85]]]]}, "2018-04-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[85.97, -78.03], [85.75, -77.5], [85.97, -76.97], [86.5, -76.75], [86.75, -76.85], [86.82, -76.82], [86.97, -76.47], [87.5, -76.25], [87.75, -76.35], [87.82, -76.32], [87.97, -75.97], [88.5, -75.75], [88.75, -75.85], [89.0, -75.75], [89.25, -75.85], [89.5, -75.75], [89.75, -75.85], [90.0, -75.75], [90.25, -75.85], [90.5, -75.75], [90.75, -75.85], [91.0, -75.75], [91.25, -75.85], [91.5, -75.75], [91.75, -75.85], [92.0, -75.75], [92.25, -75.85], [92.5, -75.75], [92.75, -75.85], [93.0, -75.75], [93.25, -75.85], [93.5, -75.75], [93.75, -75.85], [94.0, -75.75], [94.25, -75.85], [94.5, -75.75], [94.75, -75.85], [95.0, -75.75], [95.25, -75.85], [95.5, -75.75], [96.03, -75.97], [96.25, -76.5], [96.03, -77.03], [95.5, -77.25], [95.25, -77.15], [95.0, -77.25], [94.75, -77.15], [94.68, -77.18], [94.53, -77.53], [94.0, -77.75], [93.75, -77.65], [93.5, -77.75], [93.25, -77.65], [93.0, -77.75], [92.75, -77.65], [92.5, -77.75], [92.25, -77.65], [92.0, -77.75], [91.75, -77.65], [91.5, -77.75], [91.25, -77.65], [91.18, -77.68], [91.03, -78.03], [90.5, -78.25], [90.25, -78.15], [90.0, -78.25], [89.75, -78.15], [89.5, -78.25], [89.25, -78.15], [89.0, -78.25], [88.75, -78.15], [88.5, -78.25], [88.25, -78.15], [88.0, -78.25], [87.75, -78.15], [87.5, -78.25], [87.25, -78.15], [87.0, -78.25], [86.75, -78.15], [86.5, -78.25], [85.97, -78.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 11.675806891477663}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 9.178706122912848}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-35.5047668522771, -34.354707436543094, -34.917612896984366, -36.80529897827762, -42.87175183714132]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-26.96550499256827, -25.395000246739556, -27.17374769985622, -30.091813293210635, -41.303088080718084]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [8.905328180278332, 9.152838654469425, 9.461897907143806, 9.039013896944454, 9.27260232077187]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [10.470602565495625, 10.438863428950356, 11.398171824348452, 11.675806891477663, 10.012767412628676]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.7511429706399368, 1.7840335680805548, 1.8031833400075319, 1.6811635269930827, 1.5916824909411065]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.124687450395534, 2.0264938891700917, 2.119149655617426, 2.0078441647989846, 1.72922901779763]}}