{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:44:36.891196", "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": "2010-Apr-29_to_2010-May-02_1.0_15.5"}, "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": 2010040002540}, "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 29 2010"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 02 2010"}, "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": 59594.25508448217}, "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": ["Mali", "Niger"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Sahara", "Western-Africa"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Africa"]}, "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": 15.5}, "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": 1.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "1.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": -0.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 3.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 13.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 17.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2010-04-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-0.25, 16.0], [-0.03, 16.53], [0.5, 16.75], [0.75, 16.65], [1.0, 16.75], [1.53, 16.53], [1.68, 16.18], [2.0, 16.04], [2.5, 16.25], [3.03, 16.03], [3.25, 15.5], [3.03, 14.97], [2.68, 14.82], [2.65, 14.75], [2.68, 14.68], [2.75, 14.65], [3.0, 14.75], [3.53, 14.53], [3.75, 14.0], [3.53, 13.47], [3.0, 13.25], [2.75, 13.35], [2.5, 13.25], [1.97, 13.47], [1.82, 13.82], [1.75, 13.85], [1.5, 13.75], [0.97, 13.97], [0.82, 14.32], [0.47, 14.47], [0.25, 15.0], [0.35, 15.25], [0.32, 15.32], [-0.03, 15.47], [-0.25, 16.0]]]]}, "2010-04-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-0.25, 17.0], [-0.03, 17.53], [0.5, 17.75], [0.75, 17.65], [1.0, 17.75], [1.53, 17.53], [1.75, 17.0], [1.65, 16.75], [1.75, 16.5], [1.65, 16.25], [1.68, 16.18], [2.0, 16.04], [2.5, 16.25], [3.03, 16.03], [3.25, 15.5], [3.03, 14.97], [2.68, 14.82], [2.65, 14.75], [2.68, 14.68], [2.75, 14.65], [3.0, 14.75], [3.53, 14.53], [3.75, 14.0], [3.53, 13.47], [3.0, 13.25], [2.75, 13.35], [2.5, 13.25], [2.25, 13.35], [2.0, 13.25], [1.47, 13.47], [1.32, 13.82], [0.97, 13.97], [0.82, 14.32], [0.75, 14.35], [0.5, 14.25], [-0.03, 14.47], [-0.25, 15.0], [-0.15, 15.25], [-0.18, 15.32], [-0.53, 15.47], [-0.75, 16.0], [-0.53, 16.53], [-0.18, 16.68], [-0.15, 16.75], [-0.25, 17.0]]]]}, "2010-05-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-0.25, 17.0], [-0.03, 17.53], [0.5, 17.75], [0.75, 17.65], [1.0, 17.75], [1.53, 17.53], [1.75, 17.0], [1.65, 16.75], [1.75, 16.5], [1.65, 16.25], [1.68, 16.18], [2.0, 16.04], [2.5, 16.25], [3.03, 16.03], [3.25, 15.5], [3.03, 14.97], [2.68, 14.82], [2.65, 14.75], [2.68, 14.68], [2.75, 14.65], [3.0, 14.75], [3.53, 14.53], [3.75, 14.0], [3.53, 13.47], [3.0, 13.25], [2.75, 13.35], [2.5, 13.25], [2.25, 13.35], [2.0, 13.25], [1.47, 13.47], [1.32, 13.82], [0.97, 13.97], [0.82, 14.32], [0.75, 14.35], [0.5, 14.25], [-0.03, 14.47], [-0.25, 15.0], [-0.15, 15.25], [-0.18, 15.32], [-0.53, 15.47], [-0.75, 16.0], [-0.53, 16.53], [-0.18, 16.68], [-0.15, 16.75], [-0.25, 17.0]]]]}, "2010-05-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[1.47, 13.47], [1.25, 14.0], [1.47, 14.53], [2.0, 14.75], [2.53, 14.53], [2.75, 14.0], [2.53, 13.47], [2.0, 13.25], [1.47, 13.47]]], [[[-0.03, 17.53], [0.5, 17.75], [0.75, 17.65], [1.0, 17.75], [1.53, 17.53], [1.75, 17.0], [1.65, 16.75], [1.75, 16.5], [1.65, 16.25], [1.75, 16.0], [1.65, 15.75], [1.75, 15.5], [1.53, 14.97], [1.18, 14.82], [1.03, 14.47], [0.5, 14.25], [-0.03, 14.47], [-0.25, 15.0], [-0.15, 15.25], [-0.18, 15.32], [-0.53, 15.47], [-0.75, 16.0], [-0.53, 16.53], [-0.18, 16.68], [-0.15, 16.75], [-0.25, 17.0], [-0.03, 17.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.2445085895535613}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.3312562899081706}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [37.19301121347104, 37.42152682028234, 37.4010502642202, 37.63958330557091]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [37.68555413438247, 38.33422781414396, 38.34279629179747, 38.655271321876796]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.07171324162177, 2.392299473820941, 2.3647107546013104, 2.442580254209862]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.4047609270604084, 3.2445085895535613, 3.033661635054841, 2.9942346636134403]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4534013676925301, 1.5156601234355627, 1.4608740182800033, 1.427669685812891]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.7252881766015038, 1.823037894251642, 1.6836281004004878, 1.7372045226954036]}}