{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:09:49.643000", "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-Dec-30_to_2018-Jan-02_313.5_-4.5"}, "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": 2017120002845}, "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": "December 30 2017"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 02 2018"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "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": 67743.18621795124}, "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": -4.5}, "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": 313.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "313.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 311.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 315.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -6.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -3.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2017-12-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-48.53, -3.97], [-48.0, -3.75], [-47.75, -3.85], [-47.68, -3.82], [-47.53, -3.47], [-47.0, -3.25], [-46.75, -3.35], [-46.5, -3.25], [-46.0, -3.46], [-45.5, -3.25], [-44.97, -3.47], [-44.75, -4.0], [-44.96, -4.5], [-44.82, -4.82], [-44.47, -4.97], [-44.25, -5.5], [-44.47, -6.03], [-44.82, -6.18], [-44.97, -6.53], [-45.5, -6.75], [-46.0, -6.54], [-46.5, -6.75], [-46.75, -6.65], [-47.0, -6.75], [-47.53, -6.53], [-47.75, -6.0], [-47.65, -5.75], [-47.7, -5.62], [-48.0, -5.75], [-48.53, -5.53], [-48.75, -5.0], [-48.65, -4.75], [-48.75, -4.5], [-48.53, -3.97]]]]}, "2017-12-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-49.25, -4.5], [-49.03, -3.97], [-48.5, -3.75], [-48.25, -3.85], [-48.0, -3.75], [-47.75, -3.85], [-47.68, -3.82], [-47.53, -3.47], [-47.0, -3.25], [-46.75, -3.35], [-46.5, -3.25], [-46.0, -3.46], [-45.5, -3.25], [-44.97, -3.47], [-44.75, -4.0], [-44.96, -4.5], [-44.82, -4.82], [-44.47, -4.97], [-44.25, -5.5], [-44.47, -6.03], [-44.82, -6.18], [-44.97, -6.53], [-45.5, -6.75], [-46.0, -6.54], [-46.5, -6.75], [-46.75, -6.65], [-47.0, -6.75], [-47.53, -6.53], [-47.75, -6.0], [-47.65, -5.75], [-47.7, -5.62], [-48.0, -5.75], [-48.53, -5.53], [-48.68, -5.18], [-49.03, -5.03], [-49.25, -4.5]]]]}, "2018-01-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-49.25, -4.5], [-49.03, -3.97], [-48.5, -3.75], [-48.25, -3.85], [-48.0, -3.75], [-47.75, -3.85], [-47.68, -3.82], [-47.53, -3.47], [-47.0, -3.25], [-46.75, -3.35], [-46.5, -3.25], [-46.0, -3.46], [-45.5, -3.25], [-44.97, -3.47], [-44.75, -4.0], [-44.96, -4.5], [-44.82, -4.82], [-44.47, -4.97], [-44.25, -5.5], [-44.47, -6.03], [-44.82, -6.18], [-44.97, -6.53], [-45.5, -6.75], [-46.0, -6.54], [-46.5, -6.75], [-46.75, -6.65], [-47.0, -6.75], [-47.53, -6.53], [-47.75, -6.0], [-47.65, -5.75], [-47.7, -5.62], [-48.0, -5.75], [-48.53, -5.53], [-48.68, -5.18], [-49.03, -5.03], [-49.25, -4.5]]]]}, "2018-01-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-49.25, -4.5], [-49.03, -3.97], [-48.5, -3.75], [-48.25, -3.85], [-48.0, -3.75], [-47.75, -3.85], [-47.68, -3.82], [-47.53, -3.47], [-47.0, -3.25], [-46.75, -3.35], [-46.5, -3.25], [-45.97, -3.47], [-45.75, -4.0], [-45.85, -4.25], [-45.75, -4.5], [-45.97, -5.03], [-46.32, -5.18], [-46.47, -5.53], [-47.0, -5.75], [-47.5, -5.54], [-48.0, -5.75], [-48.53, -5.53], [-48.68, -5.18], [-49.03, -5.03], [-49.25, -4.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 1.9903299317209644}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.4963280787539897}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.710570535408465, 27.697425536732283, 27.426563178419087, 27.29435376526169]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [28.935383930592195, 28.829595739206468, 28.67156226928688, 27.83219125116176]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.561155078546492, 1.6192743406271395, 1.3769064052571773, 1.3364494187626594]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.8243800060025706, 1.9903299317209644, 1.8107255456812936, 1.4580021837650747]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5006998123988375, 1.5503243754519316, 1.392361194939832, 1.3093704229449106]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.7042269214586263, 1.8535687344570737, 1.757156838602973, 1.38083397663179]}}