{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:23:26.949431", "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-Feb-20_to_2021-Feb-25_308.5_-21.5"}, "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": 2021020002041}, "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": "February 20 2021"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 25 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": 68899.30299945759}, "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": ["S.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": -21.5}, "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": 308.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "308.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 305.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 310.25}, "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": -20.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2021-02-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-50.0, -22.25], [-49.47, -22.47], [-49.25, -23.0], [-49.47, -23.53], [-50.0, -23.75], [-50.53, -23.53], [-50.75, -23.0], [-50.53, -22.47], [-50.0, -22.25]]]]}, "2021-02-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-52.03, -20.97], [-51.62, -20.8], [-51.75, -20.5], [-51.53, -19.97], [-51.0, -19.75], [-50.47, -19.97], [-50.32, -20.32], [-49.97, -20.47], [-49.82, -20.82], [-49.47, -20.97], [-49.25, -21.5], [-49.35, -21.75], [-49.25, -22.0], [-49.46, -22.5], [-49.25, -23.0], [-49.47, -23.53], [-50.0, -23.75], [-50.25, -23.65], [-50.32, -23.68], [-50.47, -24.03], [-51.0, -24.25], [-51.53, -24.03], [-51.75, -23.5], [-51.54, -23.0], [-51.68, -22.68], [-52.03, -22.53], [-52.25, -22.0], [-52.15, -21.75], [-52.25, -21.5], [-52.03, -20.97]]]]}, "2021-02-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-54.53, -22.53], [-54.75, -22.0], [-54.53, -21.47], [-54.0, -21.25], [-53.75, -21.35], [-53.68, -21.32], [-53.53, -20.97], [-53.18, -20.82], [-53.03, -20.47], [-52.5, -20.25], [-52.25, -20.35], [-52.0, -20.25], [-51.75, -20.35], [-51.68, -20.32], [-51.53, -19.97], [-51.0, -19.75], [-50.47, -19.97], [-50.32, -20.32], [-50.25, -20.35], [-50.0, -20.25], [-49.47, -20.47], [-49.25, -21.0], [-49.35, -21.25], [-49.25, -21.5], [-49.35, -21.75], [-49.25, -22.0], [-49.46, -22.5], [-49.25, -23.0], [-49.47, -23.53], [-50.0, -23.75], [-50.25, -23.65], [-50.32, -23.68], [-50.47, -24.03], [-51.0, -24.25], [-51.53, -24.03], [-51.75, -23.5], [-51.54, -23.0], [-51.68, -22.68], [-51.75, -22.65], [-52.0, -22.75], [-52.53, -22.53], [-52.68, -22.18], [-52.75, -22.15], [-52.82, -22.18], [-52.97, -22.53], [-53.5, -22.75], [-53.75, -22.65], [-54.0, -22.75], [-54.53, -22.53]]]]}, "2021-02-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-54.53, -22.53], [-54.75, -22.0], [-54.53, -21.47], [-54.0, -21.25], [-53.75, -21.35], [-53.68, -21.32], [-53.53, -20.97], [-53.18, -20.82], [-53.03, -20.47], [-52.5, -20.25], [-52.25, -20.35], [-52.0, -20.25], [-51.75, -20.35], [-51.68, -20.32], [-51.53, -19.97], [-51.0, -19.75], [-50.47, -19.97], [-50.32, -20.32], [-50.25, -20.35], [-50.0, -20.25], [-49.47, -20.47], [-49.25, -21.0], [-49.35, -21.25], [-49.25, -21.5], [-49.35, -21.75], [-49.25, -22.0], [-49.46, -22.5], [-49.25, -23.0], [-49.47, -23.53], [-50.0, -23.75], [-50.25, -23.65], [-50.32, -23.68], [-50.47, -24.03], [-51.0, -24.25], [-51.53, -24.03], [-51.75, -23.5], [-51.54, -23.0], [-51.68, -22.68], [-51.75, -22.65], [-52.0, -22.75], [-52.53, -22.53], [-52.68, -22.18], [-52.75, -22.15], [-52.82, -22.18], [-52.97, -22.53], [-53.5, -22.75], [-53.75, -22.65], [-54.0, -22.75], [-54.53, -22.53]]]]}, "2021-02-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-54.53, -22.53], [-54.75, -22.0], [-54.53, -21.47], [-54.0, -21.25], [-53.75, -21.35], [-53.68, -21.32], [-53.53, -20.97], [-53.18, -20.82], [-53.03, -20.47], [-52.5, -20.25], [-52.25, -20.35], [-52.0, -20.25], [-51.75, -20.35], [-51.68, -20.32], [-51.53, -19.97], [-51.0, -19.75], [-50.47, -19.97], [-50.32, -20.32], [-50.25, -20.35], [-50.0, -20.25], [-49.47, -20.47], [-49.25, -21.0], [-49.35, -21.25], [-49.25, -21.5], [-49.35, -21.75], [-49.25, -22.0], [-49.46, -22.5], [-49.25, -23.0], [-49.47, -23.53], [-50.0, -23.75], [-50.25, -23.65], [-50.32, -23.68], [-50.47, -24.03], [-51.0, -24.25], [-51.53, -24.03], [-51.75, -23.5], [-51.54, -23.0], [-51.68, -22.68], [-51.75, -22.65], [-52.0, -22.75], [-52.53, -22.53], [-52.68, -22.18], [-52.75, -22.15], [-52.82, -22.18], [-52.97, -22.53], [-53.5, -22.75], [-53.75, -22.65], [-54.0, -22.75], [-54.53, -22.53]]]]}, "2021-02-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-52.75, -21.0], [-52.53, -20.47], [-52.0, -20.25], [-51.7, -20.38], [-51.53, -19.97], [-51.0, -19.75], [-50.47, -19.97], [-50.25, -20.5], [-50.47, -21.03], [-50.87, -21.2], [-50.75, -21.5], [-50.97, -22.03], [-51.5, -22.25], [-52.03, -22.03], [-52.18, -21.68], [-52.53, -21.53], [-52.75, -21.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 4.2473470239741005}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.787290227350572}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.389738821770663, 27.95700354450031, 28.409432787561116, 28.82524991069289, 29.081302324919022, 28.43576325119028]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [27.389738821770663, 28.800626666069604, 29.539340606575138, 29.54956731880435, 29.822102558990707, 28.61548333038735]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.4417911073528558, 2.4343459213206535, 2.534772718164208, 2.9361592098084253, 3.195762647073991, 2.110938884863496]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.4417911073528558, 2.9529782893938545, 3.42131052663683, 3.9684649933900005, 4.2473470239741005, 2.344509584024479]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.6010803952312302, 1.6871446865258046, 1.7171921060635398, 1.946724060900615, 2.0903136953668953, 1.4547938646695633]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6010803952312302, 2.06087329126337, 2.3880494547097713, 2.667725442263938, 2.812130088236331, 1.585576521499073]}}