{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:18:12.525355", "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-Sep-22_to_2018-Sep-26_315.5_-12.0"}, "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": 2018090002564}, "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": "September 22 2018"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 26 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": 66807.0374123727}, "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": ["Brazil"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.E.South-America"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["South 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": -12.0}, "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": 315.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "315.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 314.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 317.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -12.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -8.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2018-09-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-46.04, -10.0], [-46.25, -9.5], [-46.15, -9.25], [-46.25, -9.0], [-46.03, -8.47], [-45.5, -8.25], [-44.97, -8.47], [-44.82, -8.82], [-44.75, -8.85], [-44.5, -8.75], [-43.97, -8.97], [-43.82, -9.32], [-43.47, -9.47], [-43.25, -10.0], [-43.35, -10.25], [-43.25, -10.5], [-43.37, -10.8], [-42.97, -10.97], [-42.82, -11.32], [-42.47, -11.47], [-42.25, -12.0], [-42.47, -12.53], [-43.0, -12.75], [-43.25, -12.65], [-43.5, -12.75], [-43.75, -12.65], [-44.0, -12.75], [-44.25, -12.65], [-44.5, -12.75], [-45.03, -12.53], [-45.25, -12.0], [-45.15, -11.75], [-45.18, -11.68], [-45.25, -11.65], [-45.5, -11.75], [-46.03, -11.53], [-46.25, -11.0], [-46.15, -10.75], [-46.25, -10.5], [-46.04, -10.0]]]]}, "2018-09-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-46.04, -10.0], [-46.25, -9.5], [-46.15, -9.25], [-46.25, -9.0], [-46.03, -8.47], [-45.5, -8.25], [-44.97, -8.47], [-44.82, -8.82], [-44.75, -8.85], [-44.5, -8.75], [-43.97, -8.97], [-43.82, -9.32], [-43.47, -9.47], [-43.25, -10.0], [-43.35, -10.25], [-43.32, -10.32], [-42.97, -10.47], [-42.75, -11.0], [-42.85, -11.25], [-42.82, -11.32], [-42.47, -11.47], [-42.25, -12.0], [-42.47, -12.53], [-43.0, -12.75], [-43.25, -12.65], [-43.5, -12.75], [-43.75, -12.65], [-44.0, -12.75], [-44.25, -12.65], [-44.5, -12.75], [-45.03, -12.53], [-45.25, -12.0], [-45.15, -11.75], [-45.18, -11.68], [-45.25, -11.65], [-45.5, -11.75], [-46.03, -11.53], [-46.25, -11.0], [-46.15, -10.75], [-46.25, -10.5], [-46.04, -10.0]]]]}, "2018-09-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-46.04, -10.0], [-46.25, -9.5], [-46.15, -9.25], [-46.25, -9.0], [-46.03, -8.47], [-45.5, -8.25], [-44.97, -8.47], [-44.82, -8.82], [-44.75, -8.85], [-44.5, -8.75], [-43.97, -8.97], [-43.82, -9.32], [-43.47, -9.47], [-43.25, -10.0], [-43.35, -10.25], [-43.32, -10.32], [-42.97, -10.47], [-42.75, -11.0], [-42.85, -11.25], [-42.82, -11.32], [-42.47, -11.47], [-42.25, -12.0], [-42.47, -12.53], [-43.0, -12.75], [-43.25, -12.65], [-43.5, -12.75], [-43.75, -12.65], [-44.0, -12.75], [-44.25, -12.65], [-44.5, -12.75], [-45.03, -12.53], [-45.25, -12.0], [-45.15, -11.75], [-45.18, -11.68], [-45.25, -11.65], [-45.5, -11.75], [-46.03, -11.53], [-46.25, -11.0], [-46.15, -10.75], [-46.25, -10.5], [-46.04, -10.0]]]]}, "2018-09-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-44.03, -10.47], [-43.5, -10.25], [-42.97, -10.47], [-42.75, -11.0], [-42.97, -11.53], [-43.5, -11.75], [-43.93, -11.57], [-43.75, -12.0], [-43.97, -12.53], [-44.5, -12.75], [-45.03, -12.53], [-45.25, -12.0], [-45.03, -11.47], [-44.5, -11.25], [-44.07, -11.43], [-44.25, -11.0], [-44.03, -10.47]]]]}, "2018-09-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-44.5, -11.25], [-43.97, -11.47], [-43.75, -12.0], [-43.97, -12.53], [-44.5, -12.75], [-45.03, -12.53], [-45.25, -12.0], [-45.03, -11.47], [-44.5, -11.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.732535341208461}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.046712558502949}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [30.475178818149004, 30.73392810550149, 30.544129183719633, 30.492143810504047, 30.200632293777915]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [31.656569018266566, 31.869063651809995, 31.691093317995524, 30.642883710729393, 30.200632293777915]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.9758878787718923, 2.204082496222389, 1.9775280652507299, 1.9558813297340123, 1.7756135121141483]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.2802759546020184, 2.732535341208461, 2.3523725889738216, 2.261104841091935, 1.7756135121141483]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3354722686336242, 1.4557950568192042, 1.2965940908210352, 1.2152390672289113, 1.1082006777383124]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6029115657948945, 1.6762267621592741, 1.7680966253968085, 1.3621525412840205, 1.1082006777383124]}}