{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:54:58.800521", "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-Mar-21_to_2025-Mar-26_306.0_-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": 2025030001999}, "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": "March 21 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 26 2025"}, "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": 267002.20650183444}, "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": ["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": -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": 306.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "306.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 303.25}, "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": -11.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -1.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2025-03-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-56.75, -11.0], [-56.53, -10.47], [-56.18, -10.32], [-56.15, -10.25], [-56.25, -10.0], [-56.03, -9.47], [-55.5, -9.25], [-54.97, -9.47], [-54.82, -9.82], [-54.47, -9.97], [-54.25, -10.5], [-54.47, -11.03], [-54.82, -11.18], [-54.85, -11.25], [-54.75, -11.5], [-54.97, -12.03], [-55.5, -12.25], [-56.03, -12.03], [-56.18, -11.68], [-56.53, -11.53], [-56.75, -11.0]]]]}, "2025-03-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-57.03, -5.47], [-56.5, -5.25], [-56.25, -5.35], [-56.12, -5.3], [-56.18, -5.18], [-56.53, -5.03], [-56.75, -4.5], [-56.65, -4.25], [-56.75, -4.0], [-56.53, -3.47], [-56.0, -3.25], [-55.75, -3.35], [-55.5, -3.25], [-55.25, -3.35], [-55.0, -3.25], [-54.75, -3.35], [-54.68, -3.32], [-54.53, -2.97], [-54.0, -2.75], [-53.75, -2.85], [-53.5, -2.75], [-52.97, -2.97], [-52.82, -3.32], [-52.47, -3.47], [-52.32, -3.82], [-52.25, -3.85], [-52.0, -3.75], [-51.47, -3.97], [-51.25, -4.5], [-51.47, -5.03], [-52.0, -5.25], [-52.25, -5.15], [-52.5, -5.25], [-52.75, -5.15], [-52.82, -5.18], [-52.85, -5.25], [-52.75, -5.5], [-52.85, -5.75], [-52.82, -5.82], [-52.5, -5.96], [-52.18, -5.82], [-52.03, -5.47], [-51.5, -5.25], [-50.97, -5.47], [-50.75, -6.0], [-50.97, -6.53], [-51.32, -6.68], [-51.35, -6.75], [-51.25, -7.0], [-51.47, -7.53], [-51.87, -7.7], [-51.75, -8.0], [-51.85, -8.25], [-51.75, -8.5], [-51.97, -9.03], [-52.32, -9.18], [-52.47, -9.53], [-53.0, -9.75], [-53.53, -9.53], [-53.75, -9.0], [-53.65, -8.75], [-53.68, -8.68], [-53.75, -8.65], [-54.0, -8.75], [-54.25, -8.65], [-54.32, -8.68], [-54.35, -8.75], [-54.32, -8.82], [-53.97, -8.97], [-53.75, -9.5], [-53.85, -9.75], [-53.75, -10.0], [-53.85, -10.25], [-53.75, -10.5], [-53.97, -11.03], [-54.5, -11.25], [-54.75, -11.15], [-54.82, -11.18], [-54.85, -11.25], [-54.75, -11.5], [-54.97, -12.03], [-55.5, -12.25], [-56.03, -12.03], [-56.18, -11.68], [-56.53, -11.53], [-56.75, -11.0], [-56.53, -10.47], [-56.18, -10.32], [-56.15, -10.25], [-56.25, -10.0], [-56.15, -9.75], [-56.25, -9.5], [-56.15, -9.25], [-56.25, -9.0], [-56.15, -8.75], [-56.25, -8.5], [-56.03, -7.97], [-55.68, -7.82], [-55.65, -7.75], [-55.68, -7.68], [-56.0, -7.54], [-56.5, -7.75], [-57.03, -7.53], [-57.25, -7.0], [-57.04, -6.5], [-57.25, -6.0], [-57.03, -5.47]]]]}, "2025-03-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-57.03, -5.47], [-56.5, -5.25], [-56.25, -5.35], [-56.12, -5.3], [-56.18, -5.18], [-56.53, -5.03], [-56.75, -4.5], [-56.65, -4.25], [-56.75, -4.0], [-56.53, -3.47], [-56.0, -3.25], [-55.75, -3.35], [-55.5, -3.25], [-55.25, -3.35], [-55.18, -3.32], [-55.15, -3.25], [-55.25, -3.0], [-55.03, -2.47], [-54.5, -2.25], [-54.25, -2.35], [-54.0, -2.25], [-53.75, -2.35], [-53.5, -2.25], [-52.97, -2.47], [-52.75, -3.0], [-52.85, -3.25], [-52.82, -3.32], [-52.47, -3.47], [-52.32, -3.82], [-52.25, -3.85], [-52.0, -3.75], [-51.47, -3.97], [-51.25, -4.5], [-51.47, -5.03], [-52.0, -5.25], [-52.25, -5.15], [-52.5, -5.25], [-52.75, -5.15], [-52.82, -5.18], [-52.85, -5.25], [-52.75, -5.5], [-52.85, -5.75], [-52.82, -5.82], [-52.5, -5.96], [-52.18, -5.82], [-52.03, -5.47], [-51.5, -5.25], [-50.97, -5.47], [-50.75, -6.0], [-50.97, -6.53], [-51.32, -6.68], [-51.35, -6.75], [-51.25, -7.0], [-51.47, -7.53], [-51.87, -7.7], [-51.75, -8.0], [-51.85, -8.25], [-51.75, -8.5], [-51.97, -9.03], [-52.32, -9.18], [-52.47, -9.53], [-53.0, -9.75], [-53.53, -9.53], [-53.75, -9.0], [-53.65, -8.75], [-53.68, -8.68], [-53.75, -8.65], [-54.0, -8.75], [-54.25, -8.65], [-54.32, -8.68], [-54.35, -8.75], [-54.32, -8.82], [-53.97, -8.97], [-53.75, -9.5], [-53.85, -9.75], [-53.75, -10.0], [-53.85, -10.25], [-53.75, -10.5], [-53.97, -11.03], [-54.5, -11.25], [-54.75, -11.15], [-54.82, -11.18], [-54.85, -11.25], [-54.75, -11.5], [-54.97, -12.03], [-55.5, -12.25], [-56.03, -12.03], [-56.18, -11.68], [-56.53, -11.53], [-56.75, -11.0], [-56.53, -10.47], [-56.18, -10.32], [-56.15, -10.25], [-56.25, -10.0], [-56.15, -9.75], [-56.25, -9.5], [-56.15, -9.25], [-56.25, -9.0], [-56.15, -8.75], [-56.25, -8.5], [-56.03, -7.97], [-55.68, -7.82], [-55.65, -7.75], [-55.68, -7.68], [-56.0, -7.54], [-56.5, -7.75], [-57.03, -7.53], [-57.25, -7.0], [-57.04, -6.5], [-57.25, -6.0], [-57.03, -5.47]]]]}, "2025-03-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-57.03, -5.47], [-56.5, -5.25], [-56.25, -5.35], [-56.12, -5.3], [-56.18, -5.18], [-56.53, -5.03], [-56.75, -4.5], [-56.65, -4.25], [-56.75, -4.0], [-56.53, -3.47], [-56.0, -3.25], [-55.75, -3.35], [-55.5, -3.25], [-55.25, -3.35], [-55.18, -3.32], [-55.15, -3.25], [-55.25, -3.0], [-55.03, -2.47], [-54.5, -2.25], [-54.25, -2.35], [-54.0, -2.25], [-53.75, -2.35], [-53.68, -2.32], [-53.53, -1.97], [-53.0, -1.75], [-52.75, -1.85], [-52.68, -1.82], [-52.53, -1.47], [-52.0, -1.25], [-51.47, -1.47], [-51.25, -2.0], [-51.47, -2.53], [-51.82, -2.68], [-51.97, -3.03], [-52.5, -3.25], [-52.75, -3.15], [-52.82, -3.18], [-52.85, -3.25], [-52.82, -3.32], [-52.47, -3.47], [-52.32, -3.82], [-52.25, -3.85], [-52.0, -3.75], [-51.47, -3.97], [-51.25, -4.5], [-51.47, -5.03], [-52.0, -5.25], [-52.25, -5.15], [-52.5, -5.25], [-52.75, -5.15], [-52.82, -5.18], [-52.85, -5.25], [-52.75, -5.5], [-52.85, -5.75], [-52.82, -5.82], [-52.5, -5.96], [-52.18, -5.82], [-52.03, -5.47], [-51.5, -5.25], [-50.97, -5.47], [-50.75, -6.0], [-50.97, -6.53], [-51.32, -6.68], [-51.35, -6.75], [-51.25, -7.0], [-51.47, -7.53], [-51.87, -7.7], [-51.75, -8.0], [-51.85, -8.25], [-51.75, -8.5], [-51.97, -9.03], [-52.32, -9.18], [-52.47, -9.53], [-53.0, -9.75], [-53.53, -9.53], [-53.75, -9.0], [-53.65, -8.75], [-53.68, -8.68], [-53.75, -8.65], [-54.0, -8.75], [-54.25, -8.65], [-54.32, -8.68], [-54.35, -8.75], [-54.32, -8.82], [-53.97, -8.97], [-53.75, -9.5], [-53.85, -9.75], [-53.75, -10.0], [-53.85, -10.25], [-53.75, -10.5], [-53.97, -11.03], [-54.5, -11.25], [-54.75, -11.15], [-55.0, -11.25], [-55.25, -11.15], [-55.5, -11.25], [-56.03, -11.03], [-56.25, -10.5], [-56.15, -10.25], [-56.25, -10.0], [-56.15, -9.75], [-56.25, -9.5], [-56.15, -9.25], [-56.25, -9.0], [-56.15, -8.75], [-56.25, -8.5], [-56.03, -7.97], [-55.68, -7.82], [-55.65, -7.75], [-55.68, -7.68], [-56.0, -7.54], [-56.5, -7.75], [-57.03, -7.53], [-57.25, -7.0], [-57.04, -6.5], [-57.25, -6.0], [-57.03, -5.47]]]]}, "2025-03-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-55.15, -3.25], [-55.25, -3.0], [-55.03, -2.47], [-54.5, -2.25], [-54.25, -2.35], [-54.0, -2.25], [-53.75, -2.35], [-53.68, -2.32], [-53.53, -1.97], [-53.0, -1.75], [-52.75, -1.85], [-52.68, -1.82], [-52.53, -1.47], [-52.0, -1.25], [-51.47, -1.47], [-51.25, -2.0], [-51.47, -2.53], [-51.82, -2.68], [-51.97, -3.03], [-52.5, -3.25], [-52.75, -3.15], [-52.82, -3.18], [-52.85, -3.25], [-52.75, -3.5], [-52.97, -4.03], [-53.32, -4.18], [-53.47, -4.53], [-54.0, -4.75], [-54.25, -4.65], [-54.5, -4.75], [-55.03, -4.53], [-55.25, -4.0], [-55.15, -3.75], [-55.25, -3.5], [-55.15, -3.25]]]]}, "2025-03-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-53.53, -3.03], [-53.75, -2.5], [-53.53, -1.97], [-53.0, -1.75], [-52.75, -1.85], [-52.68, -1.82], [-52.53, -1.47], [-52.0, -1.25], [-51.47, -1.47], [-51.25, -2.0], [-51.47, -2.53], [-51.82, -2.68], [-51.97, -3.03], [-52.5, -3.25], [-52.75, -3.15], [-53.0, -3.25], [-53.53, -3.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.4608100956878047}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.602334755372708}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.330079227023703, 26.221095275878895, 26.458827015710256, 26.254181041414768, 26.571638072620715, 26.820248752170187]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.568672434488974, 27.514746602376306, 27.45678863525393, 27.335507965087913, 27.303867594401083, 27.13513590494796]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.354928417582651, 1.5634830784366223, 1.7744336420592606, 1.5256634424793458, 1.3995906640775502, 1.2046150844547014]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.6751591341738958, 2.007663122366978, 2.4608100956878047, 2.1175156111975184, 1.6729596157974242, 1.260729921710663]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5203302977410418, 1.8297342181591856, 2.0805502513309913, 1.772392137056288, 1.6002786436358902, 1.3819347206543096]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.7552794577977233, 2.3589685852588698, 2.833295612476802, 2.4849207686579575, 1.8549670110249354, 1.4845883524593615]}}