{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:07:17.790917", "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-Feb-07_to_2017-Feb-09_276.0_28.5"}, "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": 2017020001389}, "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 07 2017"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 09 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": 98475.36061078621}, "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": ["Gulf of Mexico"]}, "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": 28.5}, "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": 276.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "276.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 274.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 277.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 24.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 30.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2017-02-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-86.25, 30.0], [-86.03, 30.53], [-85.5, 30.75], [-85.0, 30.54], [-84.5, 30.75], [-84.25, 30.65], [-84.0, 30.75], [-83.47, 30.53], [-83.25, 30.0], [-83.35, 29.75], [-83.32, 29.68], [-83.25, 29.65], [-83.0, 29.75], [-82.47, 29.53], [-82.25, 29.0], [-82.35, 28.75], [-82.25, 28.5], [-82.35, 28.25], [-82.25, 28.0], [-82.47, 27.47], [-82.87, 27.3], [-82.75, 27.0], [-82.85, 26.75], [-82.75, 26.5], [-82.85, 26.25], [-82.75, 26.0], [-82.85, 25.75], [-82.75, 25.5], [-82.97, 24.97], [-83.32, 24.82], [-83.47, 24.47], [-84.0, 24.25], [-84.53, 24.47], [-84.68, 24.82], [-85.03, 24.97], [-85.25, 25.5], [-85.15, 25.75], [-85.25, 26.0], [-85.15, 26.25], [-85.18, 26.32], [-85.53, 26.47], [-85.75, 27.0], [-85.65, 27.25], [-85.75, 27.5], [-85.65, 27.75], [-85.75, 28.0], [-85.53, 28.53], [-85.18, 28.68], [-85.15, 28.75], [-85.18, 28.82], [-85.53, 28.97], [-85.68, 29.32], [-86.03, 29.47], [-86.25, 30.0]]]]}, "2017-02-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-86.25, 30.0], [-86.03, 30.53], [-85.5, 30.75], [-85.0, 30.54], [-84.5, 30.75], [-84.25, 30.65], [-84.0, 30.75], [-83.47, 30.53], [-83.25, 30.0], [-83.35, 29.75], [-83.32, 29.68], [-83.25, 29.65], [-83.0, 29.75], [-82.47, 29.53], [-82.25, 29.0], [-82.35, 28.75], [-82.25, 28.5], [-82.35, 28.25], [-82.25, 28.0], [-82.47, 27.47], [-82.87, 27.3], [-82.75, 27.0], [-82.85, 26.75], [-82.75, 26.5], [-82.85, 26.25], [-82.75, 26.0], [-82.85, 25.75], [-82.75, 25.5], [-82.97, 24.97], [-83.32, 24.82], [-83.47, 24.47], [-84.0, 24.25], [-84.53, 24.47], [-84.68, 24.82], [-85.03, 24.97], [-85.25, 25.5], [-85.15, 25.75], [-85.25, 26.0], [-85.15, 26.25], [-85.18, 26.32], [-85.53, 26.47], [-85.75, 27.0], [-85.65, 27.25], [-85.75, 27.5], [-85.65, 27.75], [-85.75, 28.0], [-85.53, 28.53], [-85.18, 28.68], [-85.15, 28.75], [-85.18, 28.82], [-85.53, 28.97], [-85.68, 29.32], [-86.03, 29.47], [-86.25, 30.0]]]]}, "2017-02-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-86.25, 30.0], [-86.03, 30.53], [-85.5, 30.75], [-85.0, 30.54], [-84.5, 30.75], [-84.25, 30.65], [-84.0, 30.75], [-83.47, 30.53], [-83.25, 30.0], [-83.35, 29.75], [-83.32, 29.68], [-83.25, 29.65], [-83.0, 29.75], [-82.47, 29.53], [-82.25, 29.0], [-82.35, 28.75], [-82.25, 28.5], [-82.35, 28.25], [-82.25, 28.0], [-82.47, 27.47], [-82.87, 27.3], [-82.75, 27.0], [-82.85, 26.75], [-82.75, 26.5], [-82.85, 26.25], [-82.75, 26.0], [-82.85, 25.75], [-82.75, 25.5], [-82.97, 24.97], [-83.32, 24.82], [-83.47, 24.47], [-84.0, 24.25], [-84.53, 24.47], [-84.68, 24.82], [-85.03, 24.97], [-85.25, 25.5], [-85.15, 25.75], [-85.25, 26.0], [-85.15, 26.25], [-85.18, 26.32], [-85.53, 26.47], [-85.75, 27.0], [-85.65, 27.25], [-85.75, 27.5], [-85.65, 27.75], [-85.75, 28.0], [-85.53, 28.53], [-85.18, 28.68], [-85.15, 28.75], [-85.18, 28.82], [-85.53, 28.97], [-85.68, 29.32], [-86.03, 29.47], [-86.25, 30.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 6.111069289617433}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.053612606721066}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [20.941618908254725, 21.785479037557593, 21.334096710309097]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [23.58778571077613, 24.343322383331554, 24.29799978231881]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.7031183527944176, 4.502592946242962, 3.9551265211258166]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [5.0787427390009725, 6.111069289617433, 5.7953388557967855]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.357738137023487, 1.6353373063863443, 1.4702696441543397]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.5678106252301882, 1.8855448222706088, 1.6646525850939489]}}