{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:03:21.489468", "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-Jan-30_to_2025-Feb-02_306.5_5.5"}, "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": 2025010002611}, "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 30 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 02 2025"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "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": 83163.75100301424}, "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"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["America", "America", "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": ["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": 5.5}, "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": 306.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "306.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 305.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 309.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 3.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 6.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-54.75, 6.65], [-54.5, 6.75], [-53.97, 6.53], [-53.82, 6.18], [-53.75, 6.15], [-53.5, 6.25], [-53.25, 6.15], [-53.0, 6.25], [-52.75, 6.15], [-52.5, 6.25], [-52.25, 6.15], [-52.0, 6.25], [-51.47, 6.03], [-51.32, 5.68], [-50.97, 5.53], [-50.82, 5.18], [-50.47, 5.03], [-50.25, 4.5], [-50.47, 3.97], [-50.82, 3.82], [-50.85, 3.75], [-50.75, 3.5], [-50.97, 2.97], [-51.5, 2.75], [-51.75, 2.85], [-52.0, 2.75], [-52.25, 2.85], [-52.5, 2.75], [-52.75, 2.85], [-53.0, 2.75], [-53.53, 2.97], [-53.75, 3.5], [-53.65, 3.75], [-53.75, 4.0], [-53.62, 4.3], [-53.75, 4.35], [-54.0, 4.25], [-54.53, 4.47], [-54.68, 4.82], [-54.75, 4.85], [-55.0, 4.75], [-55.53, 4.97], [-55.75, 5.5], [-55.65, 5.75], [-55.75, 6.0], [-55.53, 6.53], [-55.0, 6.75], [-54.75, 6.65]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.South-America"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2025-01-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-55.75, 6.0], [-55.52999999999997, 6.53], [-55.0, 6.75], [-54.75, 6.65], [-54.5, 6.75], [-53.97000000000003, 6.53], [-53.81999999999999, 6.18], [-53.75, 6.15], [-53.5, 6.25], [-53.25, 6.15], [-53.0, 6.25], [-52.75, 6.15], [-52.5, 6.25], [-52.25, 6.15], [-52.0, 6.25], [-51.47000000000003, 6.03], [-51.31999999999999, 5.68], [-50.97000000000003, 5.53], [-50.81999999999999, 5.18], [-50.47000000000003, 5.03], [-50.25, 4.5], [-50.47000000000003, 3.97], [-50.81999999999999, 3.82], [-50.85000000000002, 3.75], [-50.75, 3.5], [-50.97000000000003, 2.97], [-51.5, 2.75], [-51.75, 2.85], [-52.0, 2.75], [-52.25, 2.85], [-52.5, 2.75], [-52.75, 2.85], [-53.0, 2.75], [-53.52999999999997, 2.97], [-53.75, 3.5], [-53.64999999999998, 3.75], [-53.75, 4.0], [-53.620000000000005, 4.3], [-53.75, 4.35], [-54.0, 4.25], [-54.52999999999997, 4.47], [-54.68000000000001, 4.82], [-54.75, 4.85], [-55.0, 4.75], [-55.52999999999997, 4.97], [-55.75, 5.5], [-55.64999999999998, 5.75], [-55.75, 6.0]]]]}, "2025-01-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-55.75, 6.0], [-55.52999999999997, 6.53], [-55.0, 6.75], [-54.75, 6.65], [-54.5, 6.75], [-53.97000000000003, 6.53], [-53.81999999999999, 6.18], [-53.75, 6.15], [-53.5, 6.25], [-53.25, 6.15], [-53.0, 6.25], [-52.75, 6.15], [-52.5, 6.25], [-52.25, 6.15], [-52.0, 6.25], [-51.47000000000003, 6.03], [-51.31999999999999, 5.68], [-50.97000000000003, 5.53], [-50.81999999999999, 5.18], [-50.47000000000003, 5.03], [-50.25, 4.5], [-50.47000000000003, 3.97], [-50.81999999999999, 3.82], [-50.85000000000002, 3.75], [-50.75, 3.5], [-50.97000000000003, 2.97], [-51.5, 2.75], [-51.75, 2.85], [-52.0, 2.75], [-52.25, 2.85], [-52.5, 2.75], [-52.75, 2.85], [-53.0, 2.75], [-53.52999999999997, 2.97], [-53.75, 3.5], [-53.64999999999998, 3.75], [-53.75, 4.0], [-53.620000000000005, 4.3], [-53.75, 4.35], [-54.0, 4.25], [-54.52999999999997, 4.47], [-54.68000000000001, 4.82], [-54.75, 4.85], [-55.0, 4.75], [-55.52999999999997, 4.97], [-55.75, 5.5], [-55.64999999999998, 5.75], [-55.75, 6.0]]]]}, "2025-02-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-55.75, 6.0], [-55.52999999999997, 6.53], [-55.0, 6.75], [-54.75, 6.65], [-54.5, 6.75], [-53.97000000000003, 6.53], [-53.81999999999999, 6.18], [-53.75, 6.15], [-53.5, 6.25], [-53.25, 6.15], [-53.0, 6.25], [-52.75, 6.15], [-52.5, 6.25], [-52.25, 6.15], [-52.0, 6.25], [-51.47000000000003, 6.03], [-51.31999999999999, 5.68], [-50.97000000000003, 5.53], [-50.81999999999999, 5.18], [-50.47000000000003, 5.03], [-50.25, 4.5], [-50.47000000000003, 3.97], [-50.81999999999999, 3.82], [-50.85000000000002, 3.75], [-50.75, 3.5], [-50.97000000000003, 2.97], [-51.5, 2.75], [-51.75, 2.85], [-52.0, 2.75], [-52.25, 2.85], [-52.5, 2.75], [-52.75, 2.85], [-53.0, 2.75], [-53.52999999999997, 2.97], [-53.75, 3.5], [-53.64999999999998, 3.75], [-53.75, 4.0], [-53.620000000000005, 4.3], [-53.75, 4.35], [-54.0, 4.25], [-54.52999999999997, 4.47], [-54.68000000000001, 4.82], [-54.75, 4.85], [-55.0, 4.75], [-55.52999999999997, 4.97], [-55.75, 5.5], [-55.64999999999998, 5.75], [-55.75, 6.0]]]]}, "2025-02-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-54.02999999999997, 6.03], [-53.5, 6.25], [-52.97000000000003, 6.03], [-52.75, 5.5], [-52.97000000000003, 4.97], [-53.5, 4.75], [-54.02999999999997, 4.97], [-54.25, 5.5], [-54.02999999999997, 6.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 1.9305031754850006}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.1169459832695903}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.724600492877755, 26.386736994613898, 26.30926694516785, 26.238504028320335]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [27.394483184814476, 26.89602940877279, 26.73071695963546, 26.238504028320335]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.3883697174613787, 1.034869925553096, 0.9405279157765457, 0.7678465407488488]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.9305031754850006, 1.43484973387217, 1.2296812814876716, 0.7678465407488488]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [2.1551412018808986, 1.5550180306907355, 1.409552965409937, 1.3024973753455598]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [3.0735817704805353, 2.1326633452918324, 1.8806310034838816, 1.3024973753455598]}}