{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:25:23.852941", "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": "2021-Apr-19_to_2021-Apr-24_296.0_1.0"}, "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": 2021040002298}, "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": "April 19 2021"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 24 2021"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 105067.57922760428}, "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", "Venezuela"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.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": 1.0}, "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": 296.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "296.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 294.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 300.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -0.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 2.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2021-04-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-61.03, 0.47], [-61.25, 1.0], [-61.03, 1.53], [-60.5, 1.75], [-59.97, 1.53], [-59.75, 1.0], [-59.97, 0.47], [-60.5, 0.25], [-61.03, 0.47]]], [[[-65.03, 2.03], [-64.68, 2.18], [-64.53, 2.53], [-64.0, 2.75], [-63.47, 2.53], [-63.25, 2.0], [-63.35, 1.75], [-63.32, 1.68], [-63.2, 1.62], [-63.03, 2.03], [-62.5, 2.25], [-61.97, 2.03], [-61.75, 1.5], [-61.85, 1.25], [-61.75, 1.0], [-61.97, 0.47], [-62.5, 0.25], [-63.0, 0.46], [-63.5, 0.25], [-63.75, 0.35], [-64.0, 0.25], [-64.25, 0.35], [-64.32, 0.32], [-64.47, -0.03], [-65.0, -0.25], [-65.53, -0.03], [-65.75, 0.5], [-65.53, 1.03], [-65.18, 1.18], [-65.15, 1.25], [-65.25, 1.5], [-65.03, 2.03]]]]}, "2021-04-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-65.25, 1.5], [-65.03, 2.03], [-64.68, 2.18], [-64.65, 2.25], [-64.75, 2.5], [-64.53, 3.03], [-64.0, 3.25], [-63.47, 3.03], [-63.25, 2.5], [-63.35, 2.25], [-63.3, 2.12], [-63.0, 2.25], [-62.75, 2.15], [-62.5, 2.25], [-62.25, 2.15], [-62.0, 2.25], [-61.47, 2.03], [-61.32, 1.68], [-61.25, 1.65], [-61.18, 1.68], [-61.03, 2.03], [-60.5, 2.25], [-59.97, 2.03], [-59.75, 1.5], [-59.85, 1.25], [-59.82, 1.18], [-59.47, 1.03], [-59.25, 0.5], [-59.47, -0.03], [-60.0, -0.25], [-60.25, -0.15], [-60.5, -0.25], [-60.75, -0.15], [-61.0, -0.25], [-61.25, -0.15], [-61.5, -0.25], [-61.75, -0.15], [-61.82, -0.18], [-61.97, -0.53], [-62.5, -0.75], [-63.03, -0.53], [-63.18, -0.18], [-63.53, -0.03], [-63.68, 0.32], [-63.75, 0.35], [-64.0, 0.25], [-64.25, 0.35], [-64.32, 0.32], [-64.47, -0.03], [-65.0, -0.25], [-65.53, -0.03], [-65.75, 0.5], [-65.53, 1.03], [-65.18, 1.18], [-65.15, 1.25], [-65.25, 1.5]]]]}, "2021-04-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-65.25, 1.5], [-65.03, 2.03], [-64.68, 2.18], [-64.65, 2.25], [-64.75, 2.5], [-64.53, 3.03], [-64.0, 3.25], [-63.5, 3.04], [-63.0, 3.25], [-62.47, 3.03], [-62.32, 2.68], [-62.0, 2.54], [-61.5, 2.75], [-60.97, 2.53], [-60.8, 2.12], [-60.5, 2.25], [-59.97, 2.03], [-59.75, 1.5], [-59.85, 1.25], [-59.82, 1.18], [-59.47, 1.03], [-59.25, 0.5], [-59.47, -0.03], [-60.0, -0.25], [-60.25, -0.15], [-60.5, -0.25], [-60.75, -0.15], [-61.0, -0.25], [-61.25, -0.15], [-61.5, -0.25], [-61.75, -0.15], [-61.82, -0.18], [-61.97, -0.53], [-62.5, -0.75], [-63.03, -0.53], [-63.18, -0.18], [-63.25, -0.15], [-63.5, -0.25], [-64.03, -0.03], [-64.18, 0.32], [-64.25, 0.35], [-64.32, 0.32], [-64.47, -0.03], [-65.0, -0.25], [-65.53, -0.03], [-65.75, 0.5], [-65.53, 1.03], [-65.18, 1.18], [-65.15, 1.25], [-65.25, 1.5]]]]}, "2021-04-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-65.03, 2.03], [-64.68, 2.18], [-64.65, 2.25], [-64.75, 2.5], [-64.53, 3.03], [-64.0, 3.25], [-63.5, 3.04], [-63.0, 3.25], [-62.47, 3.03], [-62.32, 2.68], [-62.0, 2.54], [-61.5, 2.75], [-60.97, 2.53], [-60.8, 2.12], [-60.5, 2.25], [-59.97, 2.03], [-59.75, 1.5], [-59.85, 1.25], [-59.82, 1.18], [-59.47, 1.03], [-59.25, 0.5], [-59.47, -0.03], [-60.0, -0.25], [-60.25, -0.15], [-60.5, -0.25], [-60.75, -0.15], [-61.0, -0.25], [-61.25, -0.15], [-61.5, -0.25], [-61.75, -0.15], [-61.82, -0.18], [-61.97, -0.53], [-62.5, -0.75], [-63.03, -0.53], [-63.18, -0.18], [-63.25, -0.15], [-63.5, -0.25], [-64.03, -0.03], [-64.18, 0.32], [-64.25, 0.35], [-64.5, 0.25], [-65.03, 0.47], [-65.25, 1.0], [-65.15, 1.25], [-65.25, 1.5], [-65.03, 2.03]]]]}, "2021-04-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-65.03, 2.03], [-64.68, 2.18], [-64.65, 2.25], [-64.75, 2.5], [-64.53, 3.03], [-64.0, 3.25], [-63.5, 3.04], [-63.0, 3.25], [-62.47, 3.03], [-62.32, 2.68], [-62.0, 2.54], [-61.5, 2.75], [-60.97, 2.53], [-60.75, 2.0], [-60.85, 1.75], [-60.75, 1.5], [-60.85, 1.25], [-60.75, 1.0], [-60.97, 0.47], [-61.5, 0.25], [-61.75, 0.35], [-61.82, 0.32], [-61.97, -0.03], [-62.5, -0.25], [-62.75, -0.15], [-63.0, -0.25], [-63.25, -0.15], [-63.5, -0.25], [-64.03, -0.03], [-64.18, 0.32], [-64.25, 0.35], [-64.5, 0.25], [-65.03, 0.47], [-65.25, 1.0], [-65.15, 1.25], [-65.25, 1.5], [-65.03, 2.03]]]]}, "2021-04-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-65.25, 1.5], [-65.03, 2.03], [-64.68, 2.18], [-64.65, 2.25], [-64.75, 2.5], [-64.53, 3.03], [-64.0, 3.25], [-63.5, 3.04], [-63.0, 3.25], [-62.47, 3.03], [-62.32, 2.68], [-61.97, 2.53], [-61.75, 2.0], [-61.85, 1.75], [-61.82, 1.68], [-61.47, 1.53], [-61.25, 1.0], [-61.47, 0.47], [-61.82, 0.32], [-61.97, -0.03], [-62.5, -0.25], [-62.75, -0.15], [-63.0, -0.25], [-63.25, -0.15], [-63.5, -0.25], [-64.03, -0.03], [-64.18, 0.32], [-64.53, 0.47], [-64.68, 0.82], [-65.03, 0.97], [-65.25, 1.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.32102832224723}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.5734737652068482}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.00019180801337, 26.54470581670165, 26.914477252143058, 26.848083280601088, 26.515703805575697, 26.360678006592877]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [27.232482225488354, 27.804941199742245, 28.004393482466753, 27.808265404454346, 27.829834081539673, 27.858283089308088]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.3115909579033769, 1.430022185588732, 1.7161234513843708, 1.652170556388524, 1.542597575505314, 1.547108642959131]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.4934133398161862, 1.8457788554157446, 2.32102832224723, 2.04145369162768, 2.139417914672947, 2.2020919125053524]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5920596068528545, 1.6427884191682842, 1.938693746345696, 1.8753014351491035, 1.7849803598349314, 1.781802525931995]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.9120636621528273, 2.0105339557450472, 2.6226422465151873, 2.341114304168939, 2.462615067370169, 2.4954938606829398]}}