{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:19:58.994648", "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-May-05_to_2020-May-09_307.5_6.5"}, "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": 2020050001275}, "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": "May 05 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 09 2020"}, "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": 67565.06968535886}, "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": ["French Guiana"]}, "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": ["North Atlantic Ocean"]}, "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": 6.5}, "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": 307.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "307.5\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": 309.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 5.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 7.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2020-05-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-53.0, 8.25], [-52.47, 8.03], [-52.32, 7.68], [-52.25, 7.65], [-52.0, 7.75], [-51.47, 7.53], [-51.25, 7.0], [-51.47, 6.47], [-51.82, 6.32], [-51.97, 5.97], [-52.5, 5.75], [-52.93, 5.93], [-52.75, 5.5], [-52.97, 4.97], [-53.5, 4.75], [-54.03, 4.97], [-54.25, 5.5], [-54.03, 6.03], [-53.5, 6.25], [-54.03, 6.47], [-54.25, 7.0], [-54.03, 7.53], [-53.68, 7.68], [-53.53, 8.03], [-53.0, 8.25]], [[-53.07, 6.07], [-53.18, 6.32], [-53.25, 6.35], [-53.5, 6.25], [-53.07, 6.07]]]]}, "2020-05-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-54.03, 8.03], [-53.5, 8.25], [-53.25, 8.15], [-53.0, 8.25], [-52.75, 8.15], [-52.5, 8.25], [-52.25, 8.15], [-52.0, 8.25], [-51.47, 8.03], [-51.25, 7.5], [-51.35, 7.25], [-51.25, 7.0], [-51.47, 6.47], [-51.82, 6.32], [-51.97, 5.97], [-52.5, 5.75], [-52.93, 5.93], [-52.75, 5.5], [-52.97, 4.97], [-53.5, 4.75], [-54.03, 4.97], [-54.25, 5.5], [-54.03, 6.03], [-53.5, 6.25], [-54.03, 6.47], [-54.25, 7.0], [-54.15, 7.25], [-54.25, 7.5], [-54.03, 8.03]], [[-53.07, 6.07], [-53.18, 6.32], [-53.25, 6.35], [-53.5, 6.25], [-53.07, 6.07]]]]}, "2020-05-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-54.53, 6.53], [-54.18, 6.68], [-54.15, 6.75], [-54.25, 7.0], [-54.15, 7.25], [-54.25, 7.5], [-54.03, 8.03], [-53.5, 8.25], [-53.25, 8.15], [-53.0, 8.25], [-52.75, 8.15], [-52.5, 8.25], [-52.25, 8.15], [-52.0, 8.25], [-51.47, 8.03], [-51.25, 7.5], [-51.35, 7.25], [-51.25, 7.0], [-51.35, 6.75], [-51.32, 6.68], [-51.25, 6.65], [-51.0, 6.75], [-50.47, 6.53], [-50.25, 6.0], [-50.47, 5.47], [-51.0, 5.25], [-51.25, 5.35], [-51.5, 5.25], [-51.75, 5.35], [-52.0, 5.25], [-52.25, 5.35], [-52.32, 5.32], [-52.47, 4.97], [-53.0, 4.75], [-53.25, 4.85], [-53.5, 4.75], [-53.75, 4.85], [-54.0, 4.75], [-54.53, 4.97], [-54.75, 5.5], [-54.65, 5.75], [-54.75, 6.0], [-54.53, 6.53]]]]}, "2020-05-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-54.53, 6.53], [-54.18, 6.68], [-54.15, 6.75], [-54.25, 7.0], [-54.15, 7.25], [-54.25, 7.5], [-54.03, 8.03], [-53.5, 8.25], [-53.25, 8.15], [-53.0, 8.25], [-52.75, 8.15], [-52.5, 8.25], [-52.25, 8.15], [-52.0, 8.25], [-51.47, 8.03], [-51.25, 7.5], [-51.35, 7.25], [-51.25, 7.0], [-51.35, 6.75], [-51.32, 6.68], [-51.25, 6.65], [-51.0, 6.75], [-50.47, 6.53], [-50.25, 6.0], [-50.47, 5.47], [-51.0, 5.25], [-51.25, 5.35], [-51.5, 5.25], [-51.75, 5.35], [-52.0, 5.25], [-52.25, 5.35], [-52.32, 5.32], [-52.47, 4.97], [-53.0, 4.75], [-53.25, 4.85], [-53.5, 4.75], [-53.75, 4.85], [-54.0, 4.75], [-54.53, 4.97], [-54.75, 5.5], [-54.65, 5.75], [-54.75, 6.0], [-54.53, 6.53]]]]}, "2020-05-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-54.53, 6.53], [-54.18, 6.68], [-54.03, 7.03], [-53.5, 7.25], [-53.25, 7.15], [-53.0, 7.25], [-52.75, 7.15], [-52.5, 7.25], [-52.25, 7.15], [-52.0, 7.25], [-51.47, 7.03], [-51.32, 6.68], [-51.25, 6.65], [-51.0, 6.75], [-50.47, 6.53], [-50.25, 6.0], [-50.47, 5.47], [-51.0, 5.25], [-51.25, 5.35], [-51.5, 5.25], [-51.75, 5.35], [-52.0, 5.25], [-52.25, 5.35], [-52.32, 5.32], [-52.47, 4.97], [-53.0, 4.75], [-53.25, 4.85], [-53.5, 4.75], [-53.75, 4.85], [-54.0, 4.75], [-54.53, 4.97], [-54.75, 5.5], [-54.65, 5.75], [-54.75, 6.0], [-54.53, 6.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 1.3060719687127857}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 0.7907463371252751}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.37240417254236, 27.36445470660368, 27.35526939804015, 27.49504150123545, 27.22238861437569]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [27.51832143380858, 27.497813175921976, 27.540551759151356, 27.67338578065352, 27.468068374407096]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [0.7250275004204322, 0.6868929867984548, 0.7671831584455462, 0.9110434193595954, 0.7457763001253527]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [0.9144266114830657, 0.7731458736957961, 0.9335188106689429, 1.3060719687127857, 0.894444056350892]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.60803323229651, 1.5379221981067173, 1.6622527995495324, 1.9844212444754326, 1.6049552740035333]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.7808330610602137, 1.7223776857199167, 1.8815982692348932, 2.490044740204018, 1.9707649912970304]}}