{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-03-19 18:12:57.785185", "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": "2020-Apr-10_to_2020-Apr-13_64.0_59.0"}, "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": 2020040001676}, "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 10 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 13 2020"}, "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": 52458.134075370894}, "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": ["Russian Federation"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Europe"]}, "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": 59.0}, "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": 64.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "64.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 62.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 66.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 57.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 61.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "Polygon", "coordinates": [[[65.25, 58.646], [65.5, 58.75], [66.03, 58.53], [66.177, 58.177], [66.53, 58.03], [66.75, 57.5], [66.53, 56.97], [66.0, 56.75], [65.75, 56.854], [65.5, 56.75], [65.25, 56.854], [65.0, 56.75], [64.75, 56.854], [64.5, 56.75], [64.25, 56.854], [64.0, 56.75], [63.47, 56.97], [63.302, 57.375], [63.0, 57.25], [62.75, 57.354], [62.5, 57.25], [61.97, 57.47], [61.75, 58.0], [61.854, 58.25], [61.75, 58.5], [61.854, 58.75], [61.75, 59.0], [61.854, 59.25], [61.75, 59.5], [61.854, 59.75], [61.75, 60.0], [61.97, 60.53], [62.323, 60.677], [62.47, 61.03], [62.823, 61.177], [62.97, 61.53], [63.5, 61.75], [63.75, 61.646], [64.0, 61.75], [64.53, 61.53], [64.75, 61.0], [64.646, 60.75], [64.677, 60.677], [65.03, 60.53], [65.25, 60.0], [65.146, 59.75], [65.25, 59.5], [65.03, 58.97], [64.677, 58.823], [64.646, 58.75], [64.698, 58.625], [65.0, 58.75], [65.25, 58.646]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["W.Siberia"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2020-04-10T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[61.85355339059328, 58.25], [61.75, 58.5], [61.85355339059328, 58.75], [61.75, 59.0], [61.85355339059328, 59.25], [61.75, 59.5], [61.85355339059328, 59.75], [61.75, 60.0], [61.96966991411009, 60.53033008588991], [62.32322330470336, 60.67677669529664], [62.46966991411009, 61.03033008588991], [62.82322330470336, 61.17677669529664], [62.96966991411009, 61.53033008588991], [63.5, 61.75], [63.75, 61.64644660940672], [64.0, 61.75], [64.53033008588991, 61.53033008588991], [64.75, 61.0], [64.64644660940672, 60.75], [64.67677669529664, 60.67677669529664], [65.03033008588991, 60.53033008588991], [65.25, 60.0], [65.14644660940672, 59.75], [65.25, 59.5], [65.03033008588991, 58.96966991411009], [64.67677669529664, 58.82322330470336], [64.64644660940672, 58.75], [64.75, 58.5], [64.64644660940672, 58.25], [64.67677669529664, 58.17677669529664], [64.75, 58.14644660940672], [65.0, 58.25], [65.53033008588991, 58.03033008588991], [65.75, 57.5], [65.53033008588991, 56.96966991411009], [65.0, 56.75], [64.75, 56.85355339059328], [64.5, 56.75], [64.25, 56.85355339059328], [64.0, 56.75], [63.46966991411009, 56.96966991411009], [63.30177669529664, 57.375], [63.0, 57.25], [62.75, 57.35355339059328], [62.5, 57.25], [61.96966991411009, 57.46966991411009], [61.75, 58.0], [61.85355339059328, 58.25]]]}, "2020-04-11T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[61.85355339059328, 58.25], [61.75, 58.5], [61.85355339059328, 58.75], [61.75, 59.0], [61.85355339059328, 59.25], [61.75, 59.5], [61.85355339059328, 59.75], [61.75, 60.0], [61.96966991411009, 60.53033008588991], [62.32322330470336, 60.67677669529664], [62.46966991411009, 61.03033008588991], [62.82322330470336, 61.17677669529664], [62.96966991411009, 61.53033008588991], [63.5, 61.75], [63.75, 61.64644660940672], [64.0, 61.75], [64.53033008588991, 61.53033008588991], [64.75, 61.0], [64.64644660940672, 60.75], [64.67677669529664, 60.67677669529664], [65.03033008588991, 60.53033008588991], [65.25, 60.0], [65.14644660940672, 59.75], [65.25, 59.5], [65.03033008588991, 58.96966991411009], [64.67677669529664, 58.82322330470336], [64.64644660940672, 58.75], [64.69822330470336, 58.625], [65.0, 58.75], [65.25, 58.64644660940672], [65.5, 58.75], [66.03033008588991, 58.53033008588991], [66.17677669529664, 58.17677669529664], [66.53033008588991, 58.03033008588991], [66.75, 57.5], [66.53033008588991, 56.96966991411009], [66.0, 56.75], [65.75, 56.85355339059328], [65.5, 56.75], [65.25, 56.85355339059328], [65.0, 56.75], [64.75, 56.85355339059328], [64.5, 56.75], [64.25, 56.85355339059328], [64.0, 56.75], [63.46966991411009, 56.96966991411009], [63.30177669529664, 57.375], [63.0, 57.25], [62.75, 57.35355339059328], [62.5, 57.25], [61.96966991411009, 57.46966991411009], [61.75, 58.0], [61.85355339059328, 58.25]]]}, "2020-04-12T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[61.85355339059328, 58.25], [61.75, 58.5], [61.85355339059328, 58.75], [61.75, 59.0], [61.85355339059328, 59.25], [61.75, 59.5], [61.85355339059328, 59.75], [61.75, 60.0], [61.96966991411009, 60.53033008588991], [62.32322330470336, 60.67677669529664], [62.46966991411009, 61.03033008588991], [62.82322330470336, 61.17677669529664], [62.96966991411009, 61.53033008588991], [63.5, 61.75], [63.75, 61.64644660940672], [64.0, 61.75], [64.53033008588991, 61.53033008588991], [64.75, 61.0], [64.64644660940672, 60.75], [64.67677669529664, 60.67677669529664], [65.03033008588991, 60.53033008588991], [65.25, 60.0], [65.14644660940672, 59.75], [65.25, 59.5], [65.03033008588991, 58.96966991411009], [64.67677669529664, 58.82322330470336], [64.64644660940672, 58.75], [64.69822330470336, 58.625], [65.0, 58.75], [65.25, 58.64644660940672], [65.5, 58.75], [66.03033008588991, 58.53033008588991], [66.17677669529664, 58.17677669529664], [66.53033008588991, 58.03033008588991], [66.75, 57.5], [66.53033008588991, 56.96966991411009], [66.0, 56.75], [65.75, 56.85355339059328], [65.5, 56.75], [65.25, 56.85355339059328], [65.0, 56.75], [64.75, 56.85355339059328], [64.5, 56.75], [64.25, 56.85355339059328], [64.0, 56.75], [63.46966991411009, 56.96966991411009], [63.30177669529664, 57.375], [63.0, 57.25], [62.75, 57.35355339059328], [62.5, 57.25], [61.96966991411009, 57.46966991411009], [61.75, 58.0], [61.85355339059328, 58.25]]]}, "2020-04-13T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[64.82322330470336, 57.32322330470336], [64.46966991411009, 57.46966991411009], [64.25, 58.0], [64.46966991411009, 58.53033008588991], [65.0, 58.75], [65.25, 58.64644660940672], [65.5, 58.75], [66.03033008588991, 58.53033008588991], [66.17677669529664, 58.17677669529664], [66.53033008588991, 58.03033008588991], [66.75, 57.5], [66.53033008588991, 56.96966991411009], [66.0, 56.75], [65.75, 56.85355339059328], [65.5, 56.75], [64.96966991411009, 56.96966991411009], [64.82322330470336, 57.32322330470336]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 7.709837054599177}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 6.292508130736162}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [8.454311364503326, 9.090668608648286, 9.172688955495403, 9.175081302564081]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [9.40649088389506, 9.732840181862173, 9.793136371029334, 9.534046400826185]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [6.177708363524396, 6.436842124563751, 6.306763446730749, 5.816444636988507]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [7.709837054599177, 7.100750830857123, 6.935276490596721, 6.055640503362611]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3362846191125937, 1.3997218254538546, 1.338068664360184, 1.2127908982905211]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.5082529952883905, 1.5569502971054225, 1.5002126362901411, 1.2579211213891297]}}