{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:07:20.643206", "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": "2017-Feb-21_to_2017-Feb-24_5.0_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": 2017020002077}, "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 21 2017"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 24 2017"}, "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": 75318.99095080004}, "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", "Tunisia"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Mediterranean"]}, "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": 5.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "5.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 3.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 9.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 34.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 36.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2017-02-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[3.47, 35.47], [3.25, 36.0], [3.47, 36.53], [4.0, 36.75], [4.25, 36.65], [4.5, 36.75], [4.75, 36.65], [5.0, 36.75], [5.53, 36.53], [5.75, 36.0], [5.53, 35.47], [5.0, 35.25], [4.75, 35.35], [4.5, 35.25], [4.25, 35.35], [4.0, 35.25], [3.47, 35.47]]]]}, "2017-02-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[3.47, 36.53], [3.82, 36.68], [3.97, 37.03], [4.5, 37.25], [4.75, 37.15], [5.0, 37.25], [5.25, 37.15], [5.5, 37.25], [5.75, 37.15], [6.0, 37.25], [6.25, 37.15], [6.5, 37.25], [7.03, 37.03], [7.18, 36.68], [7.25, 36.65], [7.5, 36.75], [7.75, 36.65], [8.0, 36.75], [8.53, 36.53], [8.68, 36.18], [8.75, 36.15], [9.0, 36.25], [9.53, 36.03], [9.75, 35.5], [9.53, 34.97], [9.18, 34.82], [9.03, 34.47], [8.5, 34.25], [8.25, 34.35], [8.0, 34.25], [7.75, 34.35], [7.5, 34.25], [7.25, 34.35], [7.0, 34.25], [6.75, 34.35], [6.5, 34.25], [6.25, 34.35], [6.0, 34.25], [5.75, 34.35], [5.5, 34.25], [4.97, 34.47], [4.8, 34.88], [4.68, 34.82], [4.53, 34.47], [4.0, 34.25], [3.47, 34.47], [3.25, 35.0], [3.46, 35.5], [3.25, 36.0], [3.47, 36.53]]]]}, "2017-02-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[3.47, 36.53], [3.82, 36.68], [3.97, 37.03], [4.5, 37.25], [4.75, 37.15], [5.0, 37.25], [5.25, 37.15], [5.5, 37.25], [5.75, 37.15], [6.0, 37.25], [6.25, 37.15], [6.5, 37.25], [7.03, 37.03], [7.18, 36.68], [7.25, 36.65], [7.5, 36.75], [7.75, 36.65], [8.0, 36.75], [8.53, 36.53], [8.68, 36.18], [8.75, 36.15], [9.0, 36.25], [9.53, 36.03], [9.75, 35.5], [9.53, 34.97], [9.18, 34.82], [9.03, 34.47], [8.5, 34.25], [8.25, 34.35], [8.0, 34.25], [7.75, 34.35], [7.5, 34.25], [7.25, 34.35], [7.0, 34.25], [6.75, 34.35], [6.5, 34.25], [6.25, 34.35], [6.0, 34.25], [5.75, 34.35], [5.5, 34.25], [4.97, 34.47], [4.8, 34.88], [4.68, 34.82], [4.53, 34.47], [4.0, 34.25], [3.47, 34.47], [3.25, 35.0], [3.46, 35.5], [3.25, 36.0], [3.47, 36.53]]]]}, "2017-02-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[3.47, 36.53], [3.82, 36.68], [3.97, 37.03], [4.5, 37.25], [4.75, 37.15], [5.0, 37.25], [5.25, 37.15], [5.5, 37.25], [5.75, 37.15], [6.0, 37.25], [6.25, 37.15], [6.5, 37.25], [7.03, 37.03], [7.18, 36.68], [7.25, 36.65], [7.5, 36.75], [7.75, 36.65], [8.0, 36.75], [8.53, 36.53], [8.68, 36.18], [8.75, 36.15], [9.0, 36.25], [9.53, 36.03], [9.75, 35.5], [9.53, 34.97], [9.18, 34.82], [9.03, 34.47], [8.5, 34.25], [8.25, 34.35], [8.0, 34.25], [7.75, 34.35], [7.5, 34.25], [7.25, 34.35], [7.0, 34.25], [6.75, 34.35], [6.5, 34.25], [6.25, 34.35], [6.0, 34.25], [5.75, 34.35], [5.5, 34.25], [4.97, 34.47], [4.8, 34.88], [4.68, 34.82], [4.53, 34.47], [4.0, 34.25], [3.47, 34.47], [3.25, 35.0], [3.46, 35.5], [3.25, 36.0], [3.47, 36.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 9.230751267173446}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 5.94315317239047}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [11.160845049036311, 12.621096742300551, 15.246045573742663, 15.501653158556508]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [11.66279914053473, 16.442379395895443, 19.50772311885231, 22.004168777357563]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.552418050152047, 4.264877572617613, 6.79625769863509, 7.007397758142546]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.59636939424081, 5.000554363303081, 8.166498182503574, 9.230751267173446]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3151713027478087, 1.5527201377845403, 2.3318176595512012, 2.2754400131891175]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.3216464270027481, 1.725192515714329, 2.7724861633370015, 3.1575064568192666]}}