{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:56:14.999007", "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": "2025-Jul-01_to_2025-Jul-05_307.5_4.5"}, "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": 2025070001229}, "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": "July 01 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 05 2025"}, "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": 58484.66785014268}, "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": 4.5}, "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": 309.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 3.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 6.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2025-07-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-53.0, 6.25], [-52.7, 6.12], [-52.53, 6.53], [-52.0, 6.75], [-51.47, 6.53], [-51.32, 6.18], [-51.25, 6.15], [-51.0, 6.25], [-50.75, 6.15], [-50.5, 6.25], [-49.97, 6.03], [-49.75, 5.5], [-49.97, 4.97], [-50.5, 4.75], [-50.75, 4.85], [-51.0, 4.75], [-51.25, 4.85], [-51.37, 4.8], [-51.25, 4.5], [-51.35, 4.25], [-51.25, 4.0], [-51.47, 3.47], [-52.0, 3.25], [-52.53, 3.47], [-52.68, 3.82], [-53.03, 3.97], [-53.18, 4.32], [-53.25, 4.35], [-53.5, 4.25], [-54.03, 4.47], [-54.25, 5.0], [-54.03, 5.53], [-53.68, 5.68], [-53.53, 6.03], [-53.0, 6.25]]]]}, "2025-07-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-53.75, 6.0], [-53.53, 6.53], [-53.0, 6.75], [-52.75, 6.65], [-52.5, 6.75], [-52.25, 6.65], [-52.0, 6.75], [-51.47, 6.53], [-51.32, 6.18], [-51.25, 6.15], [-51.0, 6.25], [-50.75, 6.15], [-50.5, 6.25], [-49.97, 6.03], [-49.75, 5.5], [-49.97, 4.97], [-50.5, 4.75], [-50.75, 4.85], [-51.0, 4.75], [-51.25, 4.85], [-51.37, 4.8], [-51.25, 4.5], [-51.35, 4.25], [-51.25, 4.0], [-51.47, 3.47], [-52.0, 3.25], [-52.53, 3.47], [-52.68, 3.82], [-53.03, 3.97], [-53.18, 4.32], [-53.25, 4.35], [-53.5, 4.25], [-54.03, 4.47], [-54.25, 5.0], [-54.03, 5.53], [-53.68, 5.68], [-53.65, 5.75], [-53.75, 6.0]]]]}, "2025-07-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-54.53, 6.03], [-54.0, 6.25], [-53.75, 6.15], [-53.68, 6.18], [-53.53, 6.53], [-53.0, 6.75], [-52.75, 6.65], [-52.5, 6.75], [-52.25, 6.65], [-52.0, 6.75], [-51.47, 6.53], [-51.32, 6.18], [-51.25, 6.15], [-51.0, 6.25], [-50.75, 6.15], [-50.5, 6.25], [-49.97, 6.03], [-49.75, 5.5], [-49.97, 4.97], [-50.5, 4.75], [-50.75, 4.85], [-51.0, 4.75], [-51.25, 4.85], [-51.37, 4.8], [-51.25, 4.5], [-51.35, 4.25], [-51.25, 4.0], [-51.47, 3.47], [-52.0, 3.25], [-52.25, 3.35], [-52.5, 3.25], [-53.03, 3.47], [-53.25, 4.0], [-53.15, 4.25], [-53.18, 4.32], [-53.25, 4.35], [-53.5, 4.25], [-53.75, 4.35], [-54.0, 4.25], [-54.53, 4.47], [-54.75, 5.0], [-54.65, 5.25], [-54.75, 5.5], [-54.53, 6.03]]]]}, "2025-07-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-54.53, 6.03], [-54.0, 6.25], [-53.75, 6.15], [-53.68, 6.18], [-53.53, 6.53], [-53.0, 6.75], [-52.75, 6.65], [-52.5, 6.75], [-52.25, 6.65], [-52.0, 6.75], [-51.47, 6.53], [-51.25, 6.0], [-51.35, 5.75], [-51.25, 5.5], [-51.46, 5.0], [-51.25, 4.5], [-51.35, 4.25], [-51.25, 4.0], [-51.47, 3.47], [-52.0, 3.25], [-52.25, 3.35], [-52.5, 3.25], [-53.03, 3.47], [-53.25, 4.0], [-53.15, 4.25], [-53.18, 4.32], [-53.5, 4.46], [-54.0, 4.25], [-54.53, 4.47], [-54.75, 5.0], [-54.65, 5.25], [-54.75, 5.5], [-54.53, 6.03]]]]}, "2025-07-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-54.53, 6.03], [-54.0, 6.25], [-53.75, 6.15], [-53.5, 6.25], [-52.97, 6.03], [-52.75, 5.5], [-52.93, 5.07], [-52.5, 5.25], [-51.97, 5.03], [-51.82, 4.68], [-51.47, 4.53], [-51.25, 4.0], [-51.47, 3.47], [-52.0, 3.25], [-52.25, 3.35], [-52.5, 3.25], [-53.03, 3.47], [-53.25, 4.0], [-53.15, 4.25], [-53.25, 4.5], [-53.07, 4.93], [-53.32, 4.82], [-53.47, 4.47], [-54.0, 4.25], [-54.53, 4.47], [-54.75, 5.0], [-54.65, 5.25], [-54.75, 5.5], [-54.53, 6.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 1.7418515289049878}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.0511426104855826}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.993917314934038, 26.80548333062069, 27.065785377904035, 26.822232733832493, 26.30900429619686]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [27.341499582926474, 27.37745056152346, 28.042446390787802, 27.308012898763025, 26.923492685953818]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.1476970522025558, 0.8621165643929051, 1.2237784633870206, 1.0194209339813938, 0.8793152396420775]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.3929665794374273, 1.1092350883963036, 1.7418515289049878, 1.2209765651141424, 1.2335547908242006]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [2.090935455213584, 1.5984733955787727, 2.2664225693602837, 1.889091974755848, 1.5777409977623975]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.6349588005628575, 1.9815002958235886, 3.1126351428398173, 2.3499364345622062, 2.280954740846201]}}