{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:08:35.792115", "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": "2017-Jul-25_to_2017-Jul-27_321.5_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": 2017070002859}, "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 25 2017"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 27 2017"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 3}, "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": 80823.25282894817}, "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": ["Greenland"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Greenland/Iceland"]}, "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": 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": 321.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "321.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 312.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 325.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 73.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 76.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2017-07-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-48.03, 76.53], [-47.5, 76.75], [-47.25, 76.65], [-47.0, 76.75], [-46.75, 76.65], [-46.5, 76.75], [-46.25, 76.65], [-46.18, 76.68], [-46.03, 77.03], [-45.5, 77.25], [-45.25, 77.15], [-45.0, 77.25], [-44.75, 77.15], [-44.5, 77.25], [-44.25, 77.15], [-44.0, 77.25], [-43.75, 77.15], [-43.5, 77.25], [-43.25, 77.15], [-43.0, 77.25], [-42.75, 77.15], [-42.5, 77.25], [-42.25, 77.15], [-42.0, 77.25], [-41.75, 77.15], [-41.5, 77.25], [-41.25, 77.15], [-41.0, 77.25], [-40.75, 77.15], [-40.5, 77.25], [-40.25, 77.15], [-40.0, 77.25], [-39.75, 77.15], [-39.5, 77.25], [-39.25, 77.15], [-39.0, 77.25], [-38.75, 77.15], [-38.5, 77.25], [-37.97, 77.03], [-37.82, 76.68], [-37.75, 76.65], [-37.5, 76.75], [-37.25, 76.65], [-37.0, 76.75], [-36.75, 76.65], [-36.5, 76.75], [-36.25, 76.65], [-36.0, 76.75], [-35.75, 76.65], [-35.5, 76.75], [-35.25, 76.65], [-35.0, 76.75], [-34.47, 76.53], [-34.25, 76.0], [-34.47, 75.47], [-35.0, 75.25], [-35.25, 75.35], [-35.5, 75.25], [-35.75, 75.35], [-36.0, 75.25], [-36.25, 75.35], [-36.5, 75.25], [-35.97, 75.03], [-35.75, 74.5], [-35.97, 73.97], [-36.32, 73.82], [-36.47, 73.47], [-37.0, 73.25], [-37.25, 73.35], [-37.5, 73.25], [-37.75, 73.35], [-38.0, 73.25], [-38.25, 73.35], [-38.5, 73.25], [-39.03, 73.47], [-39.18, 73.82], [-39.25, 73.85], [-39.5, 73.75], [-39.75, 73.85], [-40.0, 73.75], [-40.25, 73.85], [-40.5, 73.75], [-40.75, 73.85], [-41.0, 73.75], [-41.25, 73.85], [-41.5, 73.75], [-41.75, 73.85], [-42.0, 73.75], [-42.25, 73.85], [-42.5, 73.75], [-42.75, 73.85], [-43.0, 73.75], [-43.25, 73.85], [-43.5, 73.75], [-43.75, 73.85], [-44.0, 73.75], [-44.25, 73.85], [-44.5, 73.75], [-44.75, 73.85], [-45.0, 73.75], [-45.25, 73.85], [-45.5, 73.75], [-46.03, 73.97], [-46.18, 74.32], [-46.25, 74.35], [-46.5, 74.25], [-47.03, 74.47], [-47.18, 74.82], [-47.25, 74.85], [-47.5, 74.75], [-48.03, 74.97], [-48.25, 75.5], [-48.15, 75.75], [-48.25, 76.0], [-48.03, 76.53]], [[-36.75, 75.35], [-36.82, 75.32], [-36.85, 75.25], [-36.82, 75.18], [-36.75, 75.15], [-36.5, 75.25], [-36.75, 75.35]]]]}, "2017-07-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-48.03, 76.53], [-47.5, 76.75], [-47.25, 76.65], [-47.0, 76.75], [-46.75, 76.65], [-46.5, 76.75], [-46.25, 76.65], [-46.18, 76.68], [-46.03, 77.03], [-45.5, 77.25], [-45.25, 77.15], [-45.0, 77.25], [-44.75, 77.15], [-44.5, 77.25], [-44.25, 77.15], [-44.0, 77.25], [-43.75, 77.15], [-43.5, 77.25], [-43.25, 77.15], [-43.0, 77.25], [-42.75, 77.15], [-42.5, 77.25], [-42.25, 77.15], [-42.0, 77.25], [-41.75, 77.15], [-41.5, 77.25], [-41.25, 77.15], [-41.0, 77.25], [-40.75, 77.15], [-40.5, 77.25], [-40.25, 77.15], [-40.0, 77.25], [-39.75, 77.15], [-39.5, 77.25], [-39.25, 77.15], [-39.0, 77.25], [-38.75, 77.15], [-38.5, 77.25], [-37.97, 77.03], [-37.82, 76.68], [-37.75, 76.65], [-37.5, 76.75], [-37.25, 76.65], [-37.0, 76.75], [-36.75, 76.65], [-36.5, 76.75], [-36.25, 76.65], [-36.0, 76.75], [-35.75, 76.65], [-35.5, 76.75], [-35.25, 76.65], [-35.0, 76.75], [-34.47, 76.53], [-34.25, 76.0], [-34.47, 75.47], [-35.0, 75.25], [-35.25, 75.35], [-35.5, 75.25], [-35.75, 75.35], [-36.0, 75.25], [-36.25, 75.35], [-36.5, 75.25], [-35.97, 75.03], [-35.75, 74.5], [-35.97, 73.97], [-36.32, 73.82], [-36.47, 73.47], [-37.0, 73.25], [-37.25, 73.35], [-37.5, 73.25], [-37.75, 73.35], [-38.0, 73.25], [-38.25, 73.35], [-38.5, 73.25], [-39.03, 73.47], [-39.18, 73.82], [-39.25, 73.85], [-39.5, 73.75], [-39.75, 73.85], [-40.0, 73.75], [-40.25, 73.85], [-40.5, 73.75], [-40.75, 73.85], [-41.0, 73.75], [-41.25, 73.85], [-41.5, 73.75], [-41.75, 73.85], [-42.0, 73.75], [-42.25, 73.85], [-42.5, 73.75], [-42.75, 73.85], [-43.0, 73.75], [-43.25, 73.85], [-43.5, 73.75], [-43.75, 73.85], [-44.0, 73.75], [-44.25, 73.85], [-44.5, 73.75], [-44.75, 73.85], [-45.0, 73.75], [-45.25, 73.85], [-45.5, 73.75], [-46.03, 73.97], [-46.18, 74.32], [-46.25, 74.35], [-46.5, 74.25], [-47.03, 74.47], [-47.18, 74.82], [-47.25, 74.85], [-47.5, 74.75], [-48.03, 74.97], [-48.25, 75.5], [-48.15, 75.75], [-48.25, 76.0], [-48.03, 76.53]], [[-36.75, 75.35], [-36.82, 75.32], [-36.85, 75.25], [-36.82, 75.18], [-36.75, 75.15], [-36.5, 75.25], [-36.75, 75.35]]]]}, "2017-07-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-48.03, 76.53], [-47.5, 76.75], [-47.25, 76.65], [-47.0, 76.75], [-46.75, 76.65], [-46.5, 76.75], [-46.25, 76.65], [-46.18, 76.68], [-46.03, 77.03], [-45.5, 77.25], [-45.25, 77.15], [-45.0, 77.25], [-44.75, 77.15], [-44.5, 77.25], [-44.25, 77.15], [-44.0, 77.25], [-43.75, 77.15], [-43.5, 77.25], [-43.25, 77.15], [-43.0, 77.25], [-42.75, 77.15], [-42.5, 77.25], [-42.25, 77.15], [-42.0, 77.25], [-41.75, 77.15], [-41.5, 77.25], [-41.25, 77.15], [-41.0, 77.25], [-40.75, 77.15], [-40.5, 77.25], [-40.25, 77.15], [-40.0, 77.25], [-39.75, 77.15], [-39.5, 77.25], [-39.25, 77.15], [-39.0, 77.25], [-38.75, 77.15], [-38.5, 77.25], [-37.97, 77.03], [-37.82, 76.68], [-37.75, 76.65], [-37.5, 76.75], [-37.25, 76.65], [-37.0, 76.75], [-36.75, 76.65], [-36.5, 76.75], [-36.25, 76.65], [-36.0, 76.75], [-35.75, 76.65], [-35.5, 76.75], [-35.25, 76.65], [-35.0, 76.75], [-34.47, 76.53], [-34.25, 76.0], [-34.47, 75.47], [-35.0, 75.25], [-35.25, 75.35], [-35.5, 75.25], [-35.75, 75.35], [-36.0, 75.25], [-36.25, 75.35], [-36.5, 75.25], [-35.97, 75.03], [-35.75, 74.5], [-35.97, 73.97], [-36.32, 73.82], [-36.47, 73.47], [-37.0, 73.25], [-37.25, 73.35], [-37.5, 73.25], [-37.75, 73.35], [-38.0, 73.25], [-38.25, 73.35], [-38.5, 73.25], [-39.03, 73.47], [-39.18, 73.82], [-39.25, 73.85], [-39.5, 73.75], [-39.75, 73.85], [-40.0, 73.75], [-40.25, 73.85], [-40.5, 73.75], [-40.75, 73.85], [-41.0, 73.75], [-41.25, 73.85], [-41.5, 73.75], [-41.75, 73.85], [-42.0, 73.75], [-42.25, 73.85], [-42.5, 73.75], [-42.75, 73.85], [-43.0, 73.75], [-43.25, 73.85], [-43.5, 73.75], [-43.75, 73.85], [-44.0, 73.75], [-44.25, 73.85], [-44.5, 73.75], [-44.75, 73.85], [-45.0, 73.75], [-45.25, 73.85], [-45.5, 73.75], [-46.03, 73.97], [-46.18, 74.32], [-46.25, 74.35], [-46.5, 74.25], [-47.03, 74.47], [-47.18, 74.82], [-47.25, 74.85], [-47.5, 74.75], [-48.03, 74.97], [-48.25, 75.5], [-48.15, 75.75], [-48.25, 76.0], [-48.03, 76.53]], [[-36.75, 75.35], [-36.82, 75.32], [-36.85, 75.25], [-36.82, 75.18], [-36.75, 75.15], [-36.5, 75.25], [-36.75, 75.35]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 8.127395506647304}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 5.933037913332068}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-6.169145030167158, -3.929203489159363, -5.5917791874002205]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-5.096813421656066, -2.5193201204001525, -3.336178170385381]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.950628559702701, 7.225516459121961, 5.622968721171544]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [5.376443417382745, 8.127395506647304, 6.819380340296959]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5594399390633669, 2.2425404826892557, 1.7078214769038307]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6695571132796287, 2.567791675620787, 2.144536414604922]}}