{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:18:47.818781", "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-Dec-11_to_2018-Dec-14_299.0_-22.0"}, "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": 2018120001821}, "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 11 2018"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 14 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": 54630.7301725943}, "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": ["Argentina", "Bolivia", "Paraguay"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.E.South-America", "South-American-Monsoon"]}, "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": -22.0}, "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": 299.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "299.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 297.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 299.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -23.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -19.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2018-12-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-62.65, -20.75], [-62.75, -20.5], [-62.65, -20.25], [-62.75, -20.0], [-62.65, -19.75], [-62.75, -19.5], [-62.53, -18.97], [-62.0, -18.75], [-61.75, -18.85], [-61.5, -18.75], [-60.97, -18.97], [-60.75, -19.5], [-60.85, -19.75], [-60.75, -20.0], [-60.85, -20.25], [-60.75, -20.5], [-60.85, -20.75], [-60.82, -20.82], [-60.47, -20.97], [-60.25, -21.5], [-60.35, -21.75], [-60.25, -22.0], [-60.47, -22.53], [-61.0, -22.75], [-61.53, -22.53], [-61.68, -22.18], [-61.75, -22.15], [-62.0, -22.25], [-62.53, -22.03], [-62.75, -21.5], [-62.65, -21.25], [-62.75, -21.0], [-62.65, -20.75]]]]}, "2018-12-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-62.65, -20.75], [-62.75, -20.5], [-62.65, -20.25], [-62.75, -20.0], [-62.65, -19.75], [-62.75, -19.5], [-62.53, -18.97], [-62.0, -18.75], [-61.75, -18.85], [-61.5, -18.75], [-60.97, -18.97], [-60.75, -19.5], [-60.85, -19.75], [-60.75, -20.0], [-60.85, -20.25], [-60.75, -20.5], [-60.85, -20.75], [-60.82, -20.82], [-60.47, -20.97], [-60.25, -21.5], [-60.35, -21.75], [-60.25, -22.0], [-60.35, -22.25], [-60.25, -22.5], [-60.35, -22.75], [-60.25, -23.0], [-60.35, -23.25], [-60.25, -23.5], [-60.47, -24.03], [-61.0, -24.25], [-61.25, -24.15], [-61.5, -24.25], [-62.03, -24.03], [-62.25, -23.5], [-62.15, -23.25], [-62.25, -23.0], [-62.15, -22.75], [-62.25, -22.5], [-62.15, -22.25], [-62.18, -22.18], [-62.53, -22.03], [-62.75, -21.5], [-62.65, -21.25], [-62.75, -21.0], [-62.65, -20.75]]]]}, "2018-12-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-62.65, -20.75], [-62.75, -20.5], [-62.65, -20.25], [-62.75, -20.0], [-62.65, -19.75], [-62.75, -19.5], [-62.53, -18.97], [-62.0, -18.75], [-61.75, -18.85], [-61.5, -18.75], [-60.97, -18.97], [-60.75, -19.5], [-60.85, -19.75], [-60.75, -20.0], [-60.85, -20.25], [-60.75, -20.5], [-60.85, -20.75], [-60.82, -20.82], [-60.47, -20.97], [-60.25, -21.5], [-60.35, -21.75], [-60.25, -22.0], [-60.35, -22.25], [-60.25, -22.5], [-60.35, -22.75], [-60.25, -23.0], [-60.35, -23.25], [-60.25, -23.5], [-60.47, -24.03], [-61.0, -24.25], [-61.25, -24.15], [-61.5, -24.25], [-62.03, -24.03], [-62.25, -23.5], [-62.15, -23.25], [-62.25, -23.0], [-62.15, -22.75], [-62.25, -22.5], [-62.15, -22.25], [-62.18, -22.18], [-62.53, -22.03], [-62.75, -21.5], [-62.65, -21.25], [-62.75, -21.0], [-62.65, -20.75]]]]}, "2018-12-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-62.15, -22.75], [-62.25, -22.5], [-62.15, -22.25], [-62.25, -22.0], [-62.03, -21.47], [-61.68, -21.32], [-61.53, -20.97], [-61.0, -20.75], [-60.47, -20.97], [-60.25, -21.5], [-60.35, -21.75], [-60.25, -22.0], [-60.35, -22.25], [-60.25, -22.5], [-60.35, -22.75], [-60.25, -23.0], [-60.35, -23.25], [-60.25, -23.5], [-60.47, -24.03], [-61.0, -24.25], [-61.25, -24.15], [-61.5, -24.25], [-62.03, -24.03], [-62.25, -23.5], [-62.15, -23.25], [-62.25, -23.0], [-62.15, -22.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 4.872586335248059}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.07145454459827}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [31.540309288832816, 32.12850653804537, 32.489425535482155, 32.73097047254328]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [32.18567255075533, 33.056622044625044, 33.464785502024085, 33.310158426681994]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.6396803185532036, 4.023092839088304, 4.327617791053917, 4.208461370661919]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.022484139713299, 4.568434278708196, 4.872586335248059, 4.700250853731177]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3069747130527125, 1.412957169144369, 1.506639003341171, 1.3442639034095747]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.45096753213865, 1.5159893572104375, 1.6149578276945542, 1.4481499967478821]}}