{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:09:49.821505", "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-Dec-31_to_2018-Jan-03_58.5_39.0"}, "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": 2017120002948}, "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": "December 31 2017"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 03 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": 59914.74195333493}, "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": ["Turkmenistan"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["W.C.Asia"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Asia"]}, "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": 39.0}, "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": 58.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "58.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 55.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 60.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 37.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 40.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2017-12-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[55.47, 39.53], [56.0, 39.75], [56.5, 39.54], [57.0, 39.75], [57.5, 39.54], [58.0, 39.75], [58.25, 39.65], [58.5, 39.75], [59.03, 39.53], [59.18, 39.18], [59.53, 39.03], [59.75, 38.5], [59.53, 37.97], [59.0, 37.75], [58.75, 37.85], [58.68, 37.82], [58.53, 37.47], [58.0, 37.25], [57.47, 37.47], [57.32, 37.82], [57.0, 37.96], [56.5, 37.75], [56.25, 37.85], [56.0, 37.75], [55.47, 37.97], [55.25, 38.5], [55.35, 38.75], [55.25, 39.0], [55.47, 39.53]]]]}, "2018-01-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[55.47, 39.53], [56.0, 39.75], [56.5, 39.54], [57.0, 39.75], [57.25, 39.65], [57.32, 39.68], [57.35, 39.75], [57.25, 40.0], [57.35, 40.25], [57.25, 40.5], [57.47, 41.03], [58.0, 41.25], [58.25, 41.15], [58.5, 41.25], [58.75, 41.15], [59.0, 41.25], [59.53, 41.03], [59.75, 40.5], [59.65, 40.25], [59.75, 40.0], [59.65, 39.75], [59.68, 39.68], [60.03, 39.53], [60.18, 39.18], [60.25, 39.15], [60.5, 39.25], [61.03, 39.03], [61.25, 38.5], [61.03, 37.97], [60.5, 37.75], [60.25, 37.85], [60.0, 37.75], [59.75, 37.85], [59.5, 37.75], [59.25, 37.85], [59.0, 37.75], [58.75, 37.85], [58.68, 37.82], [58.53, 37.47], [58.0, 37.25], [57.47, 37.47], [57.32, 37.82], [57.0, 37.96], [56.5, 37.75], [56.25, 37.85], [56.0, 37.75], [55.47, 37.97], [55.25, 38.5], [55.35, 38.75], [55.25, 39.0], [55.47, 39.53]]]]}, "2018-01-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[55.47, 39.53], [56.0, 39.75], [56.5, 39.54], [57.0, 39.75], [57.25, 39.65], [57.32, 39.68], [57.35, 39.75], [57.25, 40.0], [57.35, 40.25], [57.25, 40.5], [57.47, 41.03], [58.0, 41.25], [58.25, 41.15], [58.5, 41.25], [58.75, 41.15], [59.0, 41.25], [59.53, 41.03], [59.75, 40.5], [59.65, 40.25], [59.75, 40.0], [59.65, 39.75], [59.68, 39.68], [60.03, 39.53], [60.18, 39.18], [60.25, 39.15], [60.5, 39.25], [61.03, 39.03], [61.25, 38.5], [61.03, 37.97], [60.5, 37.75], [60.25, 37.85], [60.0, 37.75], [59.75, 37.85], [59.5, 37.75], [59.25, 37.85], [59.0, 37.75], [58.75, 37.85], [58.68, 37.82], [58.53, 37.47], [58.0, 37.25], [57.47, 37.47], [57.32, 37.82], [57.0, 37.96], [56.5, 37.75], [56.25, 37.85], [56.0, 37.75], [55.47, 37.97], [55.25, 38.5], [55.35, 38.75], [55.25, 39.0], [55.47, 39.53]]]]}, "2018-01-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[56.25, 39.0], [56.47, 39.53], [57.0, 39.75], [57.25, 39.65], [57.32, 39.68], [57.35, 39.75], [57.25, 40.0], [57.35, 40.25], [57.25, 40.5], [57.47, 41.03], [58.0, 41.25], [58.25, 41.15], [58.5, 41.25], [58.75, 41.15], [59.0, 41.25], [59.53, 41.03], [59.75, 40.5], [59.65, 40.25], [59.75, 40.0], [59.65, 39.75], [59.68, 39.68], [60.03, 39.53], [60.18, 39.18], [60.25, 39.15], [60.5, 39.25], [61.03, 39.03], [61.25, 38.5], [61.03, 37.97], [60.5, 37.75], [60.25, 37.85], [60.0, 37.75], [59.75, 37.85], [59.5, 37.75], [59.25, 37.85], [59.0, 37.75], [58.47, 37.97], [58.32, 38.32], [58.25, 38.35], [58.18, 38.32], [58.03, 37.97], [57.5, 37.75], [56.97, 37.97], [56.82, 38.32], [56.47, 38.47], [56.25, 39.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 9.121396280364593}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 6.429073808390311}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [9.78569597681593, 9.58970484709306, 9.844556696247992, 8.993531402913788]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [10.902888754604476, 12.482723247737738, 12.685471857211382, 10.252145831206406]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [5.614338711889678, 6.4305708280781095, 6.85280591044052, 6.304904954468117]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [6.158059075173298, 8.116299730014646, 9.121396280364593, 6.956430690527725]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3153299598544275, 1.5205694545497281, 1.6320376156401357, 1.4551220145215185]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.5477254707224075, 1.8361241228872678, 2.022645142119458, 1.5892025062718607]}}