{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:58:31.162414", "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": "2026-Jan-29_to_2026-Feb-03_308.5_4.0"}, "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": 2026010002388}, "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": "January 29 2026"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 03 2026"}, "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": 73940.49150986329}, "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", "French Guiana", "Suriname"]}, "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": 4.0}, "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": 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": 304.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 308.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 3.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 5.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2026-01-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-52.53, 5.03], [-52.0, 5.25], [-51.75, 5.15], [-51.5, 5.25], [-50.97, 5.03], [-50.75, 4.5], [-50.85, 4.25], [-50.75, 4.0], [-50.97, 3.47], [-51.5, 3.25], [-51.75, 3.35], [-52.0, 3.25], [-52.53, 3.47], [-52.75, 4.0], [-52.65, 4.25], [-52.75, 4.5], [-52.53, 5.03]]]]}, "2026-01-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-54.5, 6.25], [-54.25, 6.15], [-54.0, 6.25], [-53.75, 6.15], [-53.5, 6.25], [-53.25, 6.15], [-53.0, 6.25], [-52.47, 6.03], [-52.32, 5.68], [-51.97, 5.53], [-51.82, 5.18], [-51.75, 5.15], [-51.5, 5.25], [-50.97, 5.03], [-50.75, 4.5], [-50.85, 4.25], [-50.75, 4.0], [-50.85, 3.75], [-50.75, 3.5], [-50.97, 2.97], [-51.5, 2.75], [-51.75, 2.85], [-52.0, 2.75], [-52.53, 2.97], [-52.68, 3.32], [-52.75, 3.35], [-53.0, 3.25], [-53.53, 3.47], [-53.68, 3.82], [-53.75, 3.85], [-54.0, 3.75], [-54.53, 3.97], [-54.68, 4.32], [-54.75, 4.35], [-55.0, 4.25], [-55.53, 4.47], [-55.75, 5.0], [-55.53, 5.53], [-55.18, 5.68], [-55.03, 6.03], [-54.5, 6.25]]]]}, "2026-01-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-55.53, 5.53], [-55.18, 5.68], [-55.03, 6.03], [-54.5, 6.25], [-54.25, 6.15], [-54.0, 6.25], [-53.75, 6.15], [-53.5, 6.25], [-53.25, 6.15], [-53.0, 6.25], [-52.47, 6.03], [-52.32, 5.68], [-51.97, 5.53], [-51.82, 5.18], [-51.75, 5.15], [-51.5, 5.25], [-50.97, 5.03], [-50.75, 4.5], [-50.85, 4.25], [-50.75, 4.0], [-50.85, 3.75], [-50.75, 3.5], [-50.97, 2.97], [-51.5, 2.75], [-51.75, 2.85], [-52.0, 2.75], [-52.53, 2.97], [-52.68, 3.32], [-52.75, 3.35], [-53.0, 3.25], [-53.53, 3.47], [-53.68, 3.82], [-53.75, 3.85], [-54.0, 3.75], [-54.25, 3.85], [-54.5, 3.75], [-54.75, 3.85], [-55.0, 3.75], [-55.53, 3.97], [-55.75, 4.5], [-55.65, 4.75], [-55.75, 5.0], [-55.53, 5.53]]]]}, "2026-02-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-55.53, 5.53], [-55.18, 5.68], [-55.03, 6.03], [-54.5, 6.25], [-54.25, 6.15], [-54.0, 6.25], [-53.75, 6.15], [-53.5, 6.25], [-53.25, 6.15], [-53.0, 6.25], [-52.47, 6.03], [-52.32, 5.68], [-51.97, 5.53], [-51.82, 5.18], [-51.75, 5.15], [-51.5, 5.25], [-50.97, 5.03], [-50.75, 4.5], [-50.85, 4.25], [-50.75, 4.0], [-50.85, 3.75], [-50.75, 3.5], [-50.97, 2.97], [-51.5, 2.75], [-51.75, 2.85], [-52.0, 2.75], [-52.53, 2.97], [-52.68, 3.32], [-52.75, 3.35], [-53.0, 3.25], [-53.53, 3.47], [-53.68, 3.82], [-53.75, 3.85], [-54.0, 3.75], [-54.25, 3.85], [-54.5, 3.75], [-54.75, 3.85], [-55.0, 3.75], [-55.53, 3.97], [-55.75, 4.5], [-55.65, 4.75], [-55.75, 5.0], [-55.53, 5.53]]]]}, "2026-02-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-55.53, 3.97], [-55.75, 4.5], [-55.53, 5.03], [-55.0, 5.25], [-54.75, 5.15], [-54.68, 5.18], [-54.65, 5.25], [-54.75, 5.5], [-54.53, 6.03], [-54.0, 6.25], [-53.75, 6.15], [-53.5, 6.25], [-53.25, 6.15], [-53.0, 6.25], [-52.47, 6.03], [-52.32, 5.68], [-51.97, 5.53], [-51.75, 5.0], [-51.93, 4.57], [-51.5, 4.75], [-50.97, 4.53], [-50.75, 4.0], [-50.97, 3.47], [-51.5, 3.25], [-52.03, 3.47], [-52.25, 4.0], [-52.47, 3.47], [-53.0, 3.25], [-53.53, 3.47], [-53.68, 3.82], [-53.75, 3.85], [-54.0, 3.75], [-54.25, 3.85], [-54.5, 3.75], [-54.75, 3.85], [-55.0, 3.75], [-55.53, 3.97]], [[-52.07, 4.43], [-52.32, 4.32], [-52.35, 4.25], [-52.25, 4.0], [-52.07, 4.43]]]]}, "2026-02-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-53.03, 4.47], [-53.25, 5.0], [-53.03, 5.53], [-52.5, 5.75], [-51.97, 5.53], [-51.75, 5.0], [-51.93, 4.57], [-51.5, 4.75], [-50.97, 4.53], [-50.75, 4.0], [-50.97, 3.47], [-51.5, 3.25], [-52.03, 3.47], [-52.25, 4.0], [-52.07, 4.43], [-52.5, 4.25], [-53.03, 4.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.1263702880078768}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.2539832130863595}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.378615315755212, 26.336463373357617, 26.910353597005212, 26.398222859700525, 26.12371724446615, 26.52173004150393]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.833551025390648, 26.91936391194662, 27.239363606770837, 26.805713907877646, 26.49269510904952, 26.636191304524743]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [0.9285574539343742, 1.1555204241568333, 1.7024902119914174, 1.1752117162541869, 0.9068018416747796, 0.9813689846215539]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [0.9951626826282904, 1.4653572580136256, 2.1263702880078768, 1.4688953935684026, 1.0938093702158085, 1.1271371354960138]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4226915704548777, 1.7355535718930357, 2.5345360041816516, 1.7336836528752322, 1.3362172598833075, 1.4443167990871482]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.7297758701975225, 2.288643340666878, 3.148186681042547, 2.044653461633594, 1.517432398004062, 1.5182160043508375]}}