{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:17:19.144337", "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": "2022-Jan-31_to_2022-Feb-03_305.0_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": 2022010002928}, "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 31 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 03 2022"}, "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": 95088.0711140682}, "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": ["Guyana"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["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", "Demerara Plateau"]}, "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": 305.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "305.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 302.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 307.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 6.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 8.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-57.25, 7.5], [-57.15, 7.75], [-57.25, 8.0], [-57.15, 8.25], [-57.25, 8.5], [-57.03, 9.03], [-56.5, 9.25], [-56.25, 9.15], [-56.0, 9.25], [-55.47, 9.03], [-55.32, 8.68], [-55.25, 8.65], [-55.0, 8.75], [-54.75, 8.65], [-54.5, 8.75], [-53.97, 8.53], [-53.75, 8.0], [-53.85, 7.75], [-53.82, 7.68], [-53.47, 7.53], [-53.32, 7.18], [-53.25, 7.15], [-53.0, 7.25], [-52.47, 7.03], [-52.25, 6.5], [-52.47, 5.97], [-53.0, 5.75], [-53.25, 5.85], [-53.5, 5.75], [-53.75, 5.85], [-54.0, 5.75], [-54.25, 5.85], [-54.5, 5.75], [-54.75, 5.85], [-54.82, 5.82], [-54.97, 5.47], [-55.5, 5.25], [-55.75, 5.35], [-56.0, 5.25], [-56.25, 5.35], [-56.5, 5.25], [-57.0, 5.46], [-57.5, 5.25], [-58.03, 5.47], [-58.25, 6.0], [-58.03, 6.53], [-57.68, 6.68], [-57.53, 7.03], [-57.18, 7.18], [-57.15, 7.25], [-57.25, 7.5]]]]}}, "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": {"2022-01-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-57.25, 8.0], [-57.14999999999998, 8.25], [-57.25, 8.5], [-57.02999999999997, 9.03], [-56.5, 9.25], [-56.25, 9.15], [-56.0, 9.25], [-55.47000000000003, 9.03], [-55.31999999999999, 8.68], [-55.25, 8.65], [-55.0, 8.75], [-54.75, 8.65], [-54.5, 8.75], [-53.97000000000003, 8.53], [-53.75, 8.0], [-53.85000000000002, 7.75], [-53.75, 7.5], [-53.85000000000002, 7.25], [-53.81999999999999, 7.18], [-53.75, 7.15], [-53.5, 7.25], [-53.25, 7.15], [-53.0, 7.25], [-52.47000000000003, 7.03], [-52.25, 6.5], [-52.47000000000003, 5.97], [-53.0, 5.75], [-53.25, 5.85], [-53.5, 5.75], [-53.75, 5.85], [-54.0, 5.75], [-54.25, 5.85], [-54.5, 5.75], [-54.75, 5.85], [-55.0, 5.75], [-55.52999999999997, 5.97], [-55.68000000000001, 6.32], [-55.75, 6.35], [-56.0, 6.25], [-56.52999999999997, 6.47], [-56.68000000000001, 6.82], [-57.02999999999997, 6.97], [-57.25, 7.5], [-57.14999999999998, 7.75], [-57.25, 8.0]]]]}, "2022-02-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-57.52999999999997, 7.03], [-57.18000000000001, 7.18], [-57.14999999999998, 7.25], [-57.25, 7.5], [-57.14999999999998, 7.75], [-57.25, 8.0], [-57.14999999999998, 8.25], [-57.25, 8.5], [-57.02999999999997, 9.03], [-56.5, 9.25], [-56.25, 9.15], [-56.0, 9.25], [-55.47000000000003, 9.03], [-55.31999999999999, 8.68], [-55.25, 8.65], [-55.0, 8.75], [-54.75, 8.65], [-54.5, 8.75], [-53.97000000000003, 8.53], [-53.75, 8.0], [-53.85000000000002, 7.75], [-53.81999999999999, 7.68], [-53.47000000000003, 7.53], [-53.31999999999999, 7.18], [-53.25, 7.15], [-53.0, 7.25], [-52.47000000000003, 7.03], [-52.25, 6.5], [-52.47000000000003, 5.97], [-53.0, 5.75], [-53.25, 5.85], [-53.5, 5.75], [-53.75, 5.85], [-54.0, 5.75], [-54.25, 5.85], [-54.5, 5.75], [-54.75, 5.85], [-54.81999999999999, 5.82], [-54.97000000000003, 5.47], [-55.5, 5.25], [-55.75, 5.35], [-56.0, 5.25], [-56.25, 5.35], [-56.5, 5.25], [-57.0, 5.46], [-57.5, 5.25], [-58.02999999999997, 5.47], [-58.25, 6.0], [-58.02999999999997, 6.53], [-57.68000000000001, 6.68], [-57.52999999999997, 7.03]]]]}, "2022-02-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-57.52999999999997, 7.03], [-57.18000000000001, 7.18], [-57.14999999999998, 7.25], [-57.25, 7.5], [-57.14999999999998, 7.75], [-57.25, 8.0], [-57.14999999999998, 8.25], [-57.25, 8.5], [-57.02999999999997, 9.03], [-56.5, 9.25], [-56.25, 9.15], [-56.0, 9.25], [-55.47000000000003, 9.03], [-55.31999999999999, 8.68], [-55.25, 8.65], [-55.0, 8.75], [-54.75, 8.65], [-54.5, 8.75], [-53.97000000000003, 8.53], [-53.75, 8.0], [-53.85000000000002, 7.75], [-53.81999999999999, 7.68], [-53.47000000000003, 7.53], [-53.31999999999999, 7.18], [-53.25, 7.15], [-53.0, 7.25], [-52.47000000000003, 7.03], [-52.25, 6.5], [-52.47000000000003, 5.97], [-53.0, 5.75], [-53.25, 5.85], [-53.5, 5.75], [-53.75, 5.85], [-54.0, 5.75], [-54.25, 5.85], [-54.5, 5.75], [-54.75, 5.85], [-54.81999999999999, 5.82], [-54.97000000000003, 5.47], [-55.5, 5.25], [-55.75, 5.35], [-56.0, 5.25], 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"Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 1.6929533113400907}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 0.7820926470725464}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.582975626747555, 26.63457151732507, 26.697098827814386, 26.65218486468848]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.737219001873598, 26.74461831569812, 26.983562041978132, 26.770563398123954]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [0.6560058766467185, 0.7726613564959258, 0.8211842274435892, 0.8901147217797529]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [0.7783224793861336, 1.0152657322086611, 1.6929533113400907, 1.1770751021314254]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3883064845441893, 1.613249382483024, 1.6784628249561326, 1.7720563719118336]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.5714934442428208, 2.0376713212286974, 2.5029672072983504, 2.0586397644712906]}}