{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:22:49.467875", "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": "2020-Dec-30_to_2021-Jan-03_300.0_-8.5"}, "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": 2020120002899}, "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 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 03 2021"}, "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": 242593.96623375523}, "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": ["Bolivia", "Brazil"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.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": -8.5}, "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": 300.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "300.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 297.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 303.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -14.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -7.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2020-12-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-57.5, -12.25], [-56.97, -12.47], [-56.75, -13.0], [-56.85, -13.25], [-56.75, -13.5], [-56.96, -14.0], [-56.75, -14.5], [-56.97, -15.03], [-57.5, -15.25], [-58.03, -15.03], [-58.25, -14.5], [-58.04, -14.0], [-58.25, -13.5], [-58.15, -13.25], [-58.25, -13.0], [-58.03, -12.47], [-57.5, -12.25]]], [[[-60.53, -7.97], [-60.0, -7.75], [-59.47, -7.97], [-59.32, -8.32], [-58.97, -8.47], [-58.75, -9.0], [-58.85, -9.25], [-58.75, -9.5], [-58.97, -10.03], [-59.5, -10.25], [-60.03, -10.03], [-60.25, -9.5], [-60.15, -9.25], [-60.18, -9.18], [-60.53, -9.03], [-60.75, -8.5], [-60.53, -7.97]]]]}, "2020-12-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-63.25, -12.0], [-63.03, -11.47], [-62.5, -11.25], [-62.25, -11.35], [-62.18, -11.32], [-62.15, -11.25], [-62.18, -11.18], [-62.53, -11.03], [-62.75, -10.5], [-62.65, -10.25], [-62.75, -10.0], [-62.65, -9.75], [-62.75, -9.5], [-62.65, -9.25], [-62.75, -9.0], [-62.65, -8.75], [-62.75, -8.5], [-62.53, -7.97], [-62.0, -7.75], [-61.75, -7.85], [-61.68, -7.82], [-61.53, -7.47], [-61.0, -7.25], [-60.75, -7.35], [-60.5, -7.25], [-60.25, -7.35], [-60.0, -7.25], [-59.75, -7.35], [-59.68, -7.32], [-59.53, -6.97], [-59.0, -6.75], [-58.47, -6.97], [-58.25, -7.5], [-58.37, -7.8], [-57.97, -7.97], [-57.75, -8.5], [-57.97, -9.03], [-58.32, -9.18], [-58.35, -9.25], [-58.25, -9.5], [-58.35, -9.75], [-58.25, -10.0], [-58.47, -10.53], [-59.0, -10.75], [-59.25, -10.65], [-59.32, -10.68], [-59.47, -11.03], [-60.0, -11.25], [-60.25, -11.15], [-60.32, -11.18], [-60.35, -11.25], [-60.32, -11.32], [-59.97, -11.47], [-59.82, -11.82], [-59.7, -11.88], [-59.53, -11.47], [-59.0, -11.25], [-58.75, -11.35], [-58.5, -11.25], [-57.97, -11.47], [-57.82, -11.82], [-57.75, -11.85], [-57.68, -11.82], [-57.53, -11.47], [-57.0, -11.25], [-56.47, -11.47], [-56.25, -12.0], [-56.35, -12.25], [-56.25, -12.5], [-56.47, -13.03], [-56.82, -13.18], [-56.85, -13.25], [-56.75, -13.5], [-56.96, -14.0], [-56.75, -14.5], [-56.97, -15.03], [-57.5, -15.25], [-58.03, -15.03], [-58.18, -14.68], [-58.25, -14.65], [-58.5, -14.75], [-59.03, -14.53], [-59.18, -14.18], [-59.25, -14.15], [-59.5, -14.25], [-59.8, -14.12], [-59.97, -14.53], [-60.5, -14.75], [-60.75, -14.65], [-61.0, -14.75], [-61.53, -14.53], [-61.75, -14.0], [-61.65, -13.75], [-61.68, -13.68], [-62.03, -13.53], [-62.18, -13.18], [-62.53, -13.03], [-62.68, -12.68], [-63.03, -12.53], [-63.25, -12.0]]]]}, "2021-01-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-63.25, -12.0], [-63.03, -11.47], [-62.5, -11.25], [-62.25, -11.35], [-62.18, -11.32], [-62.15, -11.25], [-62.18, -11.18], [-62.53, -11.03], [-62.75, -10.5], [-62.65, -10.25], [-62.75, -10.0], [-62.65, -9.75], [-62.75, -9.5], [-62.65, -9.25], [-62.75, -9.0], [-62.65, -8.75], [-62.75, -8.5], [-62.53, -7.97], [-62.0, -7.75], [-61.75, -7.85], [-61.68, -7.82], [-61.53, -7.47], [-61.0, -7.25], [-60.75, -7.35], [-60.5, -7.25], [-60.25, -7.35], [-60.0, -7.25], [-59.75, -7.35], [-59.68, -7.32], [-59.53, -6.97], [-59.0, -6.75], [-58.47, -6.97], [-58.25, -7.5], [-58.37, -7.8], [-57.97, -7.97], [-57.75, -8.5], [-57.97, -9.03], [-58.32, -9.18], [-58.35, -9.25], [-58.25, -9.5], [-58.35, -9.75], [-58.25, -10.0], [-58.47, -10.53], [-59.0, -10.75], [-59.25, -10.65], [-59.32, -10.68], [-59.47, -11.03], [-60.0, -11.25], [-59.5, -11.46], [-59.0, -11.25], [-58.75, -11.35], [-58.5, -11.25], [-57.97, -11.47], [-57.82, -11.82], [-57.75, -11.85], [-57.68, -11.82], [-57.53, -11.47], [-57.0, -11.25], [-56.47, -11.47], [-56.25, -12.0], [-56.35, -12.25], [-56.25, -12.5], [-56.47, -13.03], [-56.82, -13.18], [-56.85, -13.25], [-56.75, -13.5], [-56.96, -14.0], [-56.75, -14.5], [-56.97, -15.03], [-57.5, -15.25], [-58.03, -15.03], [-58.18, -14.68], [-58.25, -14.65], [-58.5, -14.75], [-59.03, -14.53], [-59.18, -14.18], [-59.25, -14.15], [-59.5, -14.25], [-59.8, -14.12], [-59.97, -14.53], [-60.5, -14.75], [-60.75, -14.65], [-61.0, -14.75], [-61.53, -14.53], [-61.75, -14.0], [-61.65, -13.75], [-61.68, -13.68], [-62.03, -13.53], [-62.18, -13.18], [-62.53, -13.03], [-62.68, -12.68], [-63.03, -12.53], [-63.25, -12.0]], [[-60.25, -11.15], [-60.32, -11.18], [-60.35, -11.25], [-60.32, -11.32], [-60.25, -11.35], [-60.0, -11.25], [-60.25, -11.15]]]]}, "2021-01-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-63.25, -12.0], [-63.03, -11.47], [-62.5, -11.25], [-62.25, -11.35], [-62.18, -11.32], [-62.15, -11.25], [-62.18, -11.18], [-62.53, -11.03], [-62.75, -10.5], [-62.65, -10.25], [-62.75, -10.0], [-62.65, -9.75], [-62.75, -9.5], [-62.65, -9.25], [-62.75, -9.0], [-62.65, -8.75], [-62.75, -8.5], [-62.53, -7.97], [-62.0, -7.75], [-61.75, -7.85], [-61.68, -7.82], [-61.53, -7.47], [-61.0, -7.25], [-60.75, -7.35], [-60.5, -7.25], [-60.25, -7.35], [-60.0, -7.25], [-59.75, -7.35], [-59.68, -7.32], [-59.53, -6.97], [-59.0, -6.75], [-58.47, -6.97], [-58.25, -7.5], [-58.37, -7.8], [-57.97, -7.97], [-57.75, -8.5], [-57.97, -9.03], [-58.32, -9.18], [-58.35, -9.25], [-58.25, -9.5], [-58.35, -9.75], [-58.25, -10.0], [-58.47, -10.53], [-59.0, -10.75], [-59.25, -10.65], [-59.32, -10.68], [-59.47, -11.03], [-60.0, -11.25], [-59.5, -11.46], [-59.0, -11.25], [-58.75, -11.35], [-58.5, -11.25], [-57.97, -11.47], [-57.82, -11.82], [-57.75, -11.85], [-57.68, -11.82], [-57.53, -11.47], [-57.0, -11.25], [-56.47, -11.47], [-56.25, -12.0], [-56.35, -12.25], [-56.25, -12.5], [-56.47, -13.03], [-56.82, -13.18], [-56.85, -13.25], [-56.75, -13.5], [-56.96, -14.0], [-56.75, -14.5], [-56.97, -15.03], [-57.5, -15.25], [-58.03, -15.03], [-58.18, -14.68], [-58.25, -14.65], [-58.5, -14.75], [-59.03, -14.53], [-59.18, -14.18], [-59.25, -14.15], [-59.5, -14.25], [-59.8, -14.12], [-59.97, -14.53], [-60.5, -14.75], [-60.75, -14.65], [-61.0, -14.75], [-61.53, -14.53], [-61.75, -14.0], [-61.65, -13.75], [-61.68, -13.68], [-62.03, -13.53], [-62.18, -13.18], [-62.53, -13.03], [-62.68, -12.68], [-63.03, -12.53], [-63.25, -12.0]], [[-60.25, -11.15], [-60.32, -11.18], [-60.35, -11.25], [-60.32, -11.32], [-60.25, -11.35], [-60.0, -11.25], [-60.25, -11.15]]]]}, "2021-01-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-61.53, -12.47], [-61.0, -12.25], [-60.7, -12.38], [-60.65, -12.25], [-60.75, -12.0], [-60.53, -11.47], [-60.0, -11.25], [-59.47, -11.47], [-59.3, -11.88], [-59.0, -11.75], [-58.75, -11.85], [-58.5, -11.75], [-57.97, -11.97], [-57.75, -12.5], [-57.85, -12.75], [-57.82, -12.82], [-57.47, -12.97], [-57.25, -13.5], [-57.35, -13.75], [-57.32, -13.82], [-56.97, -13.97], [-56.75, -14.5], [-56.97, -15.03], [-57.5, -15.25], [-58.03, -15.03], [-58.18, -14.68], [-58.25, -14.65], [-58.5, -14.75], [-59.03, -14.53], [-59.18, -14.18], [-59.25, -14.15], [-59.5, -14.25], [-59.8, -14.12], [-59.97, -14.53], [-60.5, -14.75], [-61.03, -14.53], [-61.18, -14.18], [-61.53, -14.03], [-61.75, -13.5], [-61.65, -13.25], [-61.75, -13.0], [-61.53, -12.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.7166655774386186}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.553561199551067}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.52413803833855, 26.412500867739595, 26.575122539575034, 26.724222115260204, 26.165620474110142]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [27.524532181759525, 27.390097293102258, 27.734097068467236, 28.104072824590048, 27.48749246139033]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.2203143019159484, 1.3839393682184338, 1.571186002237107, 1.7333183801480103, 1.5318416105760693]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.486538608869978, 1.9495656590525527, 2.2624069241090297, 2.7166655774386186, 1.8202718680866496]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4266023601923392, 1.6779629039323452, 1.907642193113204, 2.084454426685242, 1.7731917888972775]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.5699356595539173, 2.6178424209571536, 2.850275076069848, 3.2476935382374745, 2.1281130197042173]}}