{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:17:38.211537", "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-Feb-02_to_2022-Feb-07_4.5_36.0"}, "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": 2022020001425}, "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": "February 02 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 07 2022"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 60440.46107504669}, "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": ["Algeria"]}, "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": 36.0}, "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": 4.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "4.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 2.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 6.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 34.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 36.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[1.47, 36.53], [2.0, 36.75], [2.25, 36.65], [2.5, 36.75], [2.75, 36.65], [3.0, 36.75], [3.25, 36.65], [3.5, 36.75], [3.75, 36.65], [4.0, 36.75], [4.25, 36.65], [4.5, 36.75], [4.75, 36.65], [5.0, 36.75], [5.25, 36.65], [5.5, 36.75], [6.03, 36.53], [6.18, 36.18], [6.53, 36.03], [6.75, 35.5], [6.53, 34.97], [6.0, 34.75], [5.5, 34.96], [5.0, 34.75], [4.75, 34.85], [4.68, 34.82], [4.53, 34.47], [4.18, 34.32], [4.03, 33.97], [3.5, 33.75], [3.25, 33.85], [3.0, 33.75], [2.75, 33.85], [2.5, 33.75], [1.97, 33.97], [1.82, 34.32], [1.47, 34.47], [1.25, 35.0], [1.35, 35.25], [1.25, 35.5], [1.35, 35.75], [1.25, 36.0], [1.47, 36.53]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Mediterranean"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-02-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[4.0, 34.75], [3.47, 34.97], [3.25, 35.5], [3.47, 36.03], [4.0, 36.25], [4.25, 36.15], [4.5, 36.25], [5.03, 36.03], [5.25, 35.5], [5.03, 34.97], [4.5, 34.75], [4.25, 34.85], [4.0, 34.75]]]]}, "2022-02-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[1.25, 35.5], [1.35, 35.75], [1.25, 36.0], [1.47, 36.53], [2.0, 36.75], [2.25, 36.65], [2.5, 36.75], [2.75, 36.65], [3.0, 36.75], [3.25, 36.65], [3.5, 36.75], [3.75, 36.65], [4.0, 36.75], [4.25, 36.65], [4.5, 36.75], [4.75, 36.65], [5.0, 36.75], [5.25, 36.65], [5.5, 36.75], [6.03, 36.53], [6.18, 36.18], [6.53, 36.03], [6.75, 35.5], [6.53, 34.97], [6.0, 34.75], [5.47, 34.97], [5.32, 35.32], [5.25, 35.35], [5.18, 35.32], [5.03, 34.97], [4.68, 34.82], [4.53, 34.47], [4.18, 34.32], [4.03, 33.97], [3.5, 33.75], [3.25, 33.85], [3.0, 33.75], [2.75, 33.85], [2.5, 33.75], [1.97, 33.97], [1.82, 34.32], [1.47, 34.47], [1.25, 35.0], [1.35, 35.25], [1.25, 35.5]]]]}, "2022-02-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[1.25, 35.5], [1.35, 35.75], [1.25, 36.0], [1.47, 36.53], [2.0, 36.75], [2.25, 36.65], [2.5, 36.75], [2.75, 36.65], [3.0, 36.75], [3.25, 36.65], [3.5, 36.75], 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"max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 7.5158528072678905}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.659617709846186}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [12.746492891311277, 11.99678740156537, 12.05901645482487, 11.08949917334462, 10.486728626333502, 10.119160188391163]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [13.534771323649238, 13.710948916181906, 14.603564580244722, 13.455494682903804, 13.272634266109947, 10.14101040300983]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.7568617182342905, 5.1974278620484435, 5.169614674327552, 4.21477051043517, 3.743594141984539, 3.1758776095961423]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.8765113945738108, 6.357548596883589, 7.5158528072678905, 5.346117188042911, 4.161601320386183, 3.229057694674168]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4464791878722316, 1.7359388083734482, 1.7619010147711203, 1.5055308572765143, 1.407387960033618, 1.3034234670531826]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.5019229572036206, 1.9921356321974009, 2.4015438409056826, 1.9458486063200329, 1.6562930731020542, 1.3238511341647539]}}