{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:18:35.098521", "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": "2020-Jan-05_to_2020-Jan-09_302.0_-62.0"}, "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": 2020010001300}, "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 05 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 09 2020"}, "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": 261688.58168451895}, "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": ["Antarctica"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.South-America", "Southern-Ocean", "W.Antarctica"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Antarctica"]}, "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": ["South Atlantic Ocean", "Southern 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": -62.0}, "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": 302.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "302.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 296.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 308.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -62.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -53.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2020-01-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-64.25, -59.5], [-64.03, -58.97], [-63.5, -58.75], [-63.25, -58.85], [-63.0, -58.75], [-62.75, -58.85], [-62.5, -58.75], [-62.25, -58.85], [-62.0, -58.75], [-61.47, -58.97], [-61.25, -59.5], [-61.47, -60.03], [-62.0, -60.25], [-62.25, -60.15], [-62.5, -60.25], [-62.75, -60.15], [-63.0, -60.25], [-63.25, -60.15], [-63.5, -60.25], [-64.03, -60.03], [-64.25, -59.5]]], [[[-59.03, -58.03], [-59.25, -57.5], [-59.03, -56.97], [-58.5, -56.75], [-57.97, -56.97], [-57.75, -57.5], [-57.97, -58.03], [-58.5, -58.25], [-59.03, -58.03]]]]}, "2020-01-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-64.03, -60.03], [-64.25, -59.5], [-64.03, -58.97], [-63.5, -58.75], [-63.25, -58.85], [-63.0, -58.75], [-62.75, -58.85], [-62.5, -58.75], [-62.25, -58.85], [-62.18, -58.82], [-62.03, -58.47], [-61.5, -58.25], [-61.25, -58.35], [-61.0, -58.25], [-60.75, -58.35], [-60.5, -58.25], [-60.07, -58.43], [-60.18, -58.18], [-60.53, -58.03], [-60.75, -57.5], [-60.65, -57.25], [-60.68, -57.18], [-61.03, -57.03], [-61.25, -56.5], [-61.07, -56.07], [-61.5, -56.25], [-62.03, -56.03], [-62.25, -55.5], [-62.03, -54.97], [-61.68, -54.82], [-61.53, -54.47], [-61.18, -54.32], [-61.15, -54.25], [-61.25, -54.0], [-61.03, -53.47], [-60.5, -53.25], [-60.25, -53.35], [-60.0, -53.25], [-59.75, -53.35], [-59.5, -53.25], [-59.25, -53.35], [-59.0, -53.25], [-58.75, -53.35], [-58.5, -53.25], [-57.97, -53.47], [-57.75, -54.0], [-57.85, -54.25], [-57.75, -54.5], [-57.97, -55.03], [-58.32, -55.18], [-58.35, -55.25], [-58.32, -55.32], [-57.97, -55.47], [-57.75, -56.0], [-57.85, -56.25], [-57.82, -56.32], [-57.47, -56.47], [-57.25, -57.0], [-57.35, -57.25], [-57.32, -57.32], [-56.97, -57.47], [-56.82, -57.82], [-56.75, -57.85], [-56.68, -57.82], [-56.53, -57.47], [-56.0, -57.25], [-55.75, -57.35], [-55.5, -57.25], [-55.25, -57.35], [-55.0, -57.25], [-54.75, -57.35], [-54.68, -57.32], [-54.53, -56.97], [-54.0, -56.75], [-53.75, -56.85], [-53.5, -56.75], [-53.25, -56.85], [-53.0, -56.75], [-52.47, -56.97], [-52.32, -57.32], [-51.97, -57.47], [-51.75, -58.0], [-51.85, -58.25], [-51.75, -58.5], [-51.85, -58.75], [-51.75, -59.0], [-51.85, -59.25], [-51.82, -59.32], [-51.47, -59.47], [-51.25, -60.0], [-51.47, -60.53], [-52.0, -60.75], [-52.25, -60.65], [-52.5, -60.75], [-53.03, -60.53], [-53.18, -60.18], [-53.25, -60.15], [-53.5, -60.25], [-54.03, -60.03], [-54.18, -59.68], [-54.25, -59.65], [-54.5, -59.75], [-54.75, -59.65], [-55.0, -59.75], [-55.25, -59.65], [-55.32, -59.68], [-55.35, -59.75], [-55.25, -60.0], [-55.35, -60.25], [-55.25, -60.5], [-55.35, -60.75], [-55.32, -60.82], [-55.25, -60.85], [-55.0, -60.75], [-54.75, -60.85], [-54.5, -60.75], [-53.97, -60.97], [-53.75, -61.5], [-53.97, -62.03], [-54.32, -62.18], [-54.47, -62.53], [-55.0, -62.75], [-55.25, -62.65], [-55.32, -62.68], [-55.47, -63.03], [-56.0, -63.25], [-56.25, -63.15], [-56.5, -63.25], [-56.75, -63.15], [-57.0, -63.25], [-57.25, -63.15], [-57.5, -63.25], [-57.75, -63.15], [-58.0, -63.25], [-58.53, -63.03], [-58.75, -62.5], [-58.65, -62.25], [-58.68, -62.18], [-58.75, -62.15], [-59.0, -62.25], [-59.25, -62.15], [-59.5, -62.25], [-59.75, -62.15], [-60.0, -62.25], [-60.25, -62.15], [-60.5, -62.25], [-61.03, -62.03], [-61.25, -61.5], [-61.15, -61.25], [-61.25, -61.0], [-61.07, -60.57], [-61.5, -60.75], [-61.75, -60.65], [-62.0, -60.75], [-62.25, -60.65], [-62.5, -60.75], [-63.03, -60.53], [-63.18, -60.18], [-63.25, -60.15], [-63.5, -60.25], [-64.03, -60.03]], [[-60.68, -60.18], [-60.75, -60.15], [-60.82, -60.18], [-60.93, -60.43], [-60.68, -60.32], [-60.65, -60.25], [-60.68, -60.18]], [[-60.68, -55.82], [-60.65, -55.75], [-60.68, -55.68], [-60.75, -55.65], [-60.82, -55.68], [-60.93, -55.93], [-60.68, -55.82]]]]}, "2020-01-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-64.03, -60.03], [-64.25, -59.5], [-64.03, -58.97], [-63.5, -58.75], [-63.25, -58.85], [-63.0, -58.75], [-62.75, -58.85], [-62.5, -58.75], [-62.25, -58.85], [-62.18, -58.82], [-62.03, -58.47], [-61.5, -58.25], [-61.25, -58.35], [-61.0, -58.25], [-60.75, -58.35], [-60.5, -58.25], [-60.07, -58.43], [-60.18, -58.18], [-60.53, -58.03], [-60.75, -57.5], [-60.65, -57.25], [-60.68, -57.18], [-61.03, -57.03], [-61.25, -56.5], [-61.07, -56.07], [-61.5, -56.25], [-62.03, -56.03], [-62.25, -55.5], [-62.03, -54.97], [-61.68, -54.82], [-61.53, -54.47], [-61.18, -54.32], [-61.15, -54.25], [-61.25, -54.0], [-61.03, -53.47], [-60.5, -53.25], [-60.25, -53.35], [-60.0, -53.25], [-59.75, -53.35], [-59.5, -53.25], [-59.25, -53.35], [-59.0, -53.25], [-58.75, -53.35], [-58.5, -53.25], [-57.97, -53.47], [-57.75, -54.0], [-57.85, -54.25], [-57.75, -54.5], [-57.97, -55.03], [-58.32, -55.18], [-58.35, -55.25], [-58.32, -55.32], [-57.97, -55.47], [-57.75, -56.0], [-57.85, -56.25], [-57.82, -56.32], [-57.47, -56.47], [-57.25, -57.0], [-57.35, -57.25], [-57.32, -57.32], [-56.97, -57.47], [-56.82, -57.82], [-56.75, -57.85], [-56.68, -57.82], [-56.53, -57.47], [-56.0, -57.25], [-55.75, -57.35], [-55.5, -57.25], [-55.25, -57.35], [-55.0, -57.25], [-54.75, -57.35], [-54.68, -57.32], [-54.53, -56.97], [-54.0, -56.75], [-53.75, -56.85], [-53.5, -56.75], [-53.25, -56.85], [-53.0, -56.75], [-52.47, -56.97], [-52.32, -57.32], [-51.97, -57.47], [-51.75, -58.0], [-51.85, -58.25], [-51.75, -58.5], [-51.85, -58.75], [-51.75, -59.0], [-51.85, -59.25], [-51.82, -59.32], [-51.47, -59.47], [-51.25, -60.0], [-51.47, -60.53], [-52.0, -60.75], [-52.25, -60.65], [-52.5, -60.75], [-53.03, -60.53], [-53.18, -60.18], [-53.25, -60.15], [-53.5, -60.25], [-54.03, -60.03], [-54.18, -59.68], [-54.25, -59.65], [-54.5, -59.75], [-54.75, -59.65], [-55.0, -59.75], [-55.25, -59.65], [-55.32, -59.68], [-55.35, -59.75], [-55.25, -60.0], [-55.35, -60.25], [-55.25, -60.5], [-55.35, -60.75], [-55.32, -60.82], [-55.25, -60.85], [-55.0, -60.75], [-54.75, -60.85], [-54.5, -60.75], [-53.97, -60.97], [-53.75, -61.5], [-53.97, -62.03], [-54.32, -62.18], [-54.47, -62.53], [-55.0, -62.75], [-55.25, -62.65], [-55.32, -62.68], [-55.47, -63.03], [-56.0, -63.25], [-56.25, -63.15], [-56.5, -63.25], [-56.75, -63.15], [-57.0, -63.25], [-57.25, -63.15], [-57.5, -63.25], [-57.75, -63.15], [-58.0, -63.25], [-58.53, -63.03], [-58.68, -62.68], [-59.03, -62.53], [-59.18, -62.18], [-59.25, -62.15], [-59.5, -62.25], [-59.75, -62.15], [-60.0, -62.25], [-60.25, -62.15], [-60.5, -62.25], [-61.03, -62.03], [-61.25, -61.5], [-61.15, -61.25], [-61.25, -61.0], [-61.07, -60.57], [-61.5, -60.75], [-61.75, -60.65], [-62.0, -60.75], [-62.25, -60.65], [-62.5, -60.75], [-63.03, -60.53], [-63.18, -60.18], [-63.25, -60.15], [-63.5, -60.25], [-64.03, -60.03]], [[-60.68, -60.18], [-60.75, -60.15], [-60.82, -60.18], [-60.93, -60.43], [-60.68, -60.32], [-60.65, -60.25], [-60.68, -60.18]], [[-60.68, -55.82], [-60.65, -55.75], [-60.68, -55.68], [-60.75, -55.65], [-60.82, -55.68], [-60.93, -55.93], [-60.68, -55.82]]]]}, "2020-01-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-64.03, -60.03], [-64.25, -59.5], [-64.03, -58.97], [-63.5, -58.75], [-63.25, -58.85], [-63.0, -58.75], [-62.75, -58.85], [-62.5, -58.75], [-62.25, -58.85], [-62.18, -58.82], [-62.03, -58.47], [-61.5, -58.25], [-61.25, -58.35], [-61.0, -58.25], [-60.75, -58.35], [-60.5, -58.25], [-60.07, -58.43], [-60.18, -58.18], [-60.53, -58.03], [-60.75, -57.5], [-60.65, -57.25], [-60.68, -57.18], [-61.03, -57.03], [-61.25, -56.5], [-61.07, -56.07], [-61.5, -56.25], [-62.03, -56.03], [-62.25, -55.5], [-62.03, -54.97], [-61.68, -54.82], [-61.53, -54.47], [-61.18, -54.32], [-61.15, -54.25], [-61.25, -54.0], [-61.03, -53.47], [-60.5, -53.25], [-60.25, -53.35], [-60.0, -53.25], [-59.75, -53.35], [-59.5, -53.25], [-59.25, -53.35], [-59.0, -53.25], [-58.75, -53.35], [-58.5, -53.25], [-57.97, -53.47], [-57.75, -54.0], [-57.85, -54.25], [-57.75, -54.5], [-57.97, -55.03], [-58.32, -55.18], [-58.35, -55.25], [-58.32, -55.32], [-57.97, -55.47], [-57.75, -56.0], [-57.85, -56.25], [-57.82, -56.32], [-57.47, -56.47], [-57.25, -57.0], [-57.35, -57.25], [-57.32, -57.32], [-56.97, -57.47], [-56.82, -57.82], [-56.75, -57.85], [-56.68, -57.82], [-56.53, -57.47], [-56.0, -57.25], [-55.75, -57.35], [-55.5, -57.25], [-55.25, -57.35], [-55.0, -57.25], [-54.75, -57.35], [-54.68, -57.32], [-54.53, -56.97], [-54.0, -56.75], [-53.75, -56.85], [-53.5, -56.75], [-53.25, -56.85], [-53.0, -56.75], [-52.47, -56.97], [-52.32, -57.32], [-51.97, -57.47], [-51.75, -58.0], [-51.85, -58.25], [-51.75, -58.5], [-51.85, -58.75], [-51.75, -59.0], [-51.85, -59.25], [-51.82, -59.32], [-51.47, -59.47], [-51.25, -60.0], [-51.47, -60.53], [-52.0, -60.75], [-52.25, -60.65], [-52.5, -60.75], [-53.03, -60.53], [-53.18, -60.18], [-53.25, -60.15], [-53.5, -60.25], [-54.03, -60.03], [-54.18, -59.68], [-54.25, -59.65], [-54.5, -59.75], [-54.75, -59.65], [-55.0, -59.75], [-55.25, -59.65], [-55.32, -59.68], [-55.35, -59.75], [-55.25, -60.0], [-55.35, -60.25], [-55.25, -60.5], [-55.35, -60.75], [-55.32, -60.82], [-55.25, -60.85], [-55.0, -60.75], [-54.75, -60.85], [-54.5, -60.75], [-53.97, -60.97], [-53.75, -61.5], [-53.97, -62.03], [-54.32, -62.18], [-54.47, -62.53], [-55.0, -62.75], [-55.25, -62.65], [-55.32, -62.68], [-55.47, -63.03], [-56.0, -63.25], [-56.25, -63.15], [-56.5, -63.25], [-56.75, -63.15], [-57.0, -63.25], [-57.25, -63.15], [-57.5, -63.25], [-57.75, -63.15], [-58.0, -63.25], [-58.53, -63.03], [-58.68, -62.68], [-59.03, -62.53], [-59.18, -62.18], [-59.25, -62.15], [-59.5, -62.25], [-59.75, -62.15], [-60.0, -62.25], [-60.25, -62.15], [-60.5, -62.25], [-61.03, -62.03], [-61.25, -61.5], [-61.15, -61.25], [-61.25, -61.0], [-61.07, -60.57], [-61.5, -60.75], [-61.75, -60.65], [-62.0, -60.75], [-62.25, -60.65], [-62.5, -60.75], [-63.03, -60.53], [-63.18, -60.18], [-63.25, -60.15], [-63.5, -60.25], [-64.03, -60.03]], [[-60.68, -60.18], [-60.75, -60.15], [-60.82, -60.18], [-60.93, -60.43], [-60.68, -60.32], [-60.65, -60.25], [-60.68, -60.18]], [[-60.68, -55.82], [-60.65, -55.75], [-60.68, -55.68], [-60.75, -55.65], [-60.82, -55.68], [-60.93, -55.93], [-60.68, -55.82]]]]}, "2020-01-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-59.25, -62.0], [-59.03, -61.47], [-58.5, -61.25], [-58.25, -61.35], [-58.0, -61.25], [-57.47, -61.47], [-57.25, -62.0], [-57.47, -62.53], [-58.0, -62.75], [-58.25, -62.65], [-58.5, -62.75], [-59.03, -62.53], [-59.25, -62.0]]], [[[-59.03, -55.03], [-59.25, -54.5], [-59.03, -53.97], [-58.5, -53.75], [-57.97, -53.97], [-57.75, -54.5], [-57.97, -55.03], [-58.5, -55.25], [-59.03, -55.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 4.4694962465177355}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.834473237895662}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [4.88550377642224, 4.803678814166403, 4.9849923547382105, 4.979972643256929, 5.005515311686565]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [6.0483500023463534, 9.419268305639207, 9.124358475481017, 9.387592296388732, 8.591088393500911]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.723560057631471, 1.7419996946488396, 1.904403822419964, 1.856123836874875, 2.0372863565543184]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.814293854788957, 2.737851142792408, 3.2641891083985115, 4.4694962465177355, 3.293448048245068]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.482096871320731, 1.5815281195338962, 1.6989205960573877, 1.67581018880171, 1.5529630401073256]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.5859726020998253, 2.103639450864277, 2.4099659122387944, 2.6785193846729247, 1.973222341158459]}}