{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:12:32.952053", "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": "2018-Apr-19_to_2018-Apr-22_311.0_-9.0"}, "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": 2018040002227}, "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": "April 19 2018"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 22 2018"}, "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": 67318.59177883001}, "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.E.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": -9.0}, "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": 311.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "311.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 308.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 312.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -9.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -6.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2018-04-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-50.75, -7.5], [-50.53, -6.97], [-50.18, -6.82], [-50.03, -6.47], [-49.5, -6.25], [-49.25, -6.35], [-49.0, -6.25], [-48.47, -6.47], [-48.32, -6.82], [-48.25, -6.85], [-48.0, -6.75], [-47.47, -6.97], [-47.25, -7.5], [-47.35, -7.75], [-47.25, -8.0], [-47.47, -8.53], [-47.82, -8.68], [-47.97, -9.03], [-48.32, -9.18], [-48.35, -9.25], [-48.25, -9.5], [-48.47, -10.03], [-49.0, -10.25], [-49.53, -10.03], [-49.68, -9.68], [-50.03, -9.53], [-50.25, -9.0], [-50.04, -8.5], [-50.18, -8.18], [-50.53, -8.03], [-50.75, -7.5]]]]}, "2018-04-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-52.03, -9.03], [-52.25, -8.5], [-52.03, -7.97], [-51.5, -7.75], [-51.25, -7.85], [-51.18, -7.82], [-51.03, -7.47], [-50.68, -7.32], [-50.53, -6.97], [-50.18, -6.82], [-50.03, -6.47], [-49.5, -6.25], [-49.25, -6.35], [-49.0, -6.25], [-48.47, -6.47], [-48.32, -6.82], [-48.25, -6.85], [-48.0, -6.75], [-47.47, -6.97], [-47.25, -7.5], [-47.35, -7.75], [-47.25, -8.0], [-47.47, -8.53], [-47.82, -8.68], [-47.97, -9.03], [-48.32, -9.18], [-48.35, -9.25], [-48.25, -9.5], [-48.47, -10.03], [-49.0, -10.25], [-49.53, -10.03], [-49.68, -9.68], [-50.0, -9.54], [-50.5, -9.75], [-51.03, -9.53], [-51.18, -9.18], [-51.25, -9.15], [-51.5, -9.25], [-52.03, -9.03]]]]}, "2018-04-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-52.03, -9.03], [-52.25, -8.5], [-52.03, -7.97], [-51.5, -7.75], [-51.25, -7.85], [-51.18, -7.82], [-51.03, -7.47], [-50.68, -7.32], [-50.53, -6.97], [-50.18, -6.82], [-50.03, -6.47], [-49.5, -6.25], [-49.25, -6.35], [-49.0, -6.25], [-48.47, -6.47], [-48.32, -6.82], [-48.25, -6.85], [-48.0, -6.75], [-47.47, -6.97], [-47.25, -7.5], [-47.35, -7.75], [-47.25, -8.0], [-47.47, -8.53], [-47.82, -8.68], [-47.97, -9.03], [-48.32, -9.18], [-48.35, -9.25], [-48.25, -9.5], [-48.47, -10.03], [-49.0, -10.25], [-49.53, -10.03], [-49.68, -9.68], [-50.0, -9.54], [-50.5, -9.75], [-51.03, -9.53], [-51.18, -9.18], [-51.25, -9.15], [-51.5, -9.25], [-52.03, -9.03]]]]}, "2018-04-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-52.03, -9.03], [-52.25, -8.5], [-52.03, -7.97], [-51.5, -7.75], [-51.25, -7.85], [-51.18, -7.82], [-51.03, -7.47], [-50.5, -7.25], [-50.25, -7.35], [-50.0, -7.25], [-49.75, -7.35], [-49.5, -7.25], [-48.97, -7.47], [-48.75, -8.0], [-48.87, -8.3], [-48.47, -8.47], [-48.25, -9.0], [-48.47, -9.53], [-49.0, -9.75], [-49.53, -9.53], [-49.75, -9.0], [-49.97, -9.53], [-50.5, -9.75], [-51.03, -9.53], [-51.18, -9.18], [-51.25, -9.15], [-51.5, -9.25], [-52.03, -9.03]], [[-49.62, -8.7], [-49.75, -8.65], [-49.82, -8.68], [-49.85, -8.75], [-49.75, -9.0], [-49.62, -8.7]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.2309587392423964}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.8234643677860498}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.957830922723247, 27.846374194817543, 27.837762087076953, 27.527126653947562]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [28.58070850546659, 28.85167848891689, 28.659534705243857, 28.41155897787246]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.7446719560365054, 1.8754254412614377, 1.7920637838985891, 1.9245078449183382]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.156152257689371, 2.2309587392423964, 2.0642271694320584, 2.211281071674648]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5909278126965238, 1.714314796106976, 1.605256081982052, 1.635397184708744]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.8049848002376685, 1.9923048592261432, 1.9010831208983991, 1.9584594856754003]}}