{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:55:48.294008", "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-Feb-19_to_2014-Feb-21_277.0_34.5"}, "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": 2014020002054}, "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 19 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 21 2014"}, "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": 86617.2121503795}, "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": ["United States"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.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": 34.5}, "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": 277.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "277.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 276.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 279.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 32.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 36.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-02-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-84.15, 34.75], [-84.25, 35.0], [-84.03, 35.53], [-83.68, 35.68], [-83.65, 35.75], [-83.75, 36.0], [-83.53, 36.53], [-83.0, 36.75], [-82.75, 36.65], [-82.5, 36.75], [-82.25, 36.65], [-82.0, 36.75], [-81.47, 36.53], [-81.32, 36.18], [-81.25, 36.15], [-81.0, 36.25], [-80.47, 36.03], [-80.25, 35.5], [-80.35, 35.25], [-80.25, 35.0], [-80.35, 34.75], [-80.25, 34.5], [-80.35, 34.25], [-80.32, 34.18], [-79.97, 34.03], [-79.75, 33.5], [-79.85, 33.25], [-79.75, 33.0], [-79.97, 32.47], [-80.32, 32.32], [-80.47, 31.97], [-81.0, 31.75], [-81.53, 31.97], [-81.75, 32.5], [-81.65, 32.75], [-81.7, 32.88], [-82.0, 32.75], [-82.25, 32.85], [-82.5, 32.75], [-82.75, 32.85], [-83.0, 32.75], [-83.53, 32.97], [-83.68, 33.32], [-84.03, 33.47], [-84.25, 34.0], [-84.15, 34.25], [-84.25, 34.5], [-84.15, 34.75]]]]}, "2014-02-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-84.15, 34.75], [-84.25, 35.0], [-84.03, 35.53], [-83.68, 35.68], [-83.65, 35.75], [-83.75, 36.0], [-83.53, 36.53], [-83.0, 36.75], [-82.75, 36.65], [-82.5, 36.75], [-82.25, 36.65], [-82.0, 36.75], [-81.47, 36.53], [-81.32, 36.18], [-81.25, 36.15], [-81.0, 36.25], [-80.47, 36.03], [-80.25, 35.5], [-80.35, 35.25], [-80.25, 35.0], [-80.35, 34.75], [-80.25, 34.5], [-80.35, 34.25], [-80.32, 34.18], [-79.97, 34.03], [-79.75, 33.5], [-79.85, 33.25], [-79.75, 33.0], [-79.97, 32.47], [-80.32, 32.32], [-80.47, 31.97], [-81.0, 31.75], [-81.53, 31.97], [-81.75, 32.5], [-81.65, 32.75], [-81.7, 32.88], [-82.0, 32.75], [-82.25, 32.85], [-82.5, 32.75], [-82.75, 32.85], [-83.0, 32.75], [-83.53, 32.97], [-83.68, 33.32], [-84.03, 33.47], [-84.25, 34.0], [-84.15, 34.25], [-84.25, 34.5], [-84.15, 34.75]]]]}, "2014-02-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-84.15, 34.75], [-84.25, 35.0], [-84.03, 35.53], [-83.68, 35.68], [-83.65, 35.75], [-83.75, 36.0], [-83.53, 36.53], [-83.0, 36.75], [-82.75, 36.65], [-82.5, 36.75], [-82.25, 36.65], [-82.0, 36.75], [-81.47, 36.53], [-81.32, 36.18], [-81.25, 36.15], [-81.0, 36.25], [-80.47, 36.03], [-80.25, 35.5], [-80.35, 35.25], [-80.25, 35.0], [-80.35, 34.75], [-80.25, 34.5], [-80.35, 34.25], [-80.32, 34.18], [-79.97, 34.03], [-79.75, 33.5], [-79.85, 33.25], [-79.75, 33.0], [-79.97, 32.47], [-80.32, 32.32], [-80.47, 31.97], [-81.0, 31.75], [-81.53, 31.97], [-81.75, 32.5], [-81.65, 32.75], [-81.7, 32.88], [-82.0, 32.75], [-82.25, 32.85], [-82.5, 32.75], [-82.75, 32.85], [-83.0, 32.75], [-83.53, 32.97], [-83.68, 33.32], [-84.03, 33.47], [-84.25, 34.0], [-84.15, 34.25], [-84.25, 34.5], [-84.15, 34.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 9.189210019166296}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 7.325919517308062}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [15.727764621808376, 16.618497781114797, 16.34027840685161]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [18.685357491656248, 19.206266437292072, 19.613111704735218]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [7.157733795981684, 7.732851545497134, 7.087173210445366]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [8.415140792301543, 9.189210019166296, 8.389043485348736]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4835316911594274, 1.6604760473303724, 1.5265953617481063]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.7718942634636097, 1.850467280942104, 1.8157710521041097]}}