{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:31:24.147897", "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-Jun-27_to_2022-Jul-08_350.5_32.5"}, "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": 2022060001134}, "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": "June 27 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 08 2022"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 12}, "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": "Cold spell"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 80902.66447518478}, "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": ["Morocco"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Mediterranean", "N.Atlantic-Ocean", "Sahara"]}, "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": ["North Atlantic Ocean"]}, "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": 32.5}, "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": 350.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "350.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 348.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 351.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 26.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 33.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-06-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-10.75, 29.5], [-10.53, 30.03], [-10.0, 30.25], [-9.47, 30.03], [-9.25, 29.5], [-9.35, 29.25], [-9.25, 29.0], [-9.35, 28.75], [-9.25, 28.5], [-9.47, 27.97], [-10.0, 27.75], [-10.53, 27.97], [-10.75, 28.5], [-10.65, 28.75], [-10.75, 29.0], [-10.65, 29.25], [-10.75, 29.5]]], [[[-10.0, 31.75], [-9.47, 31.53], [-9.25, 31.0], [-9.47, 30.47], [-10.0, 30.25], [-10.53, 30.47], [-10.75, 31.0], [-10.53, 31.53], [-10.0, 31.75]]], [[[-10.25, 32.5], [-10.03, 33.03], [-9.5, 33.25], [-8.97, 33.03], [-8.75, 32.5], [-8.97, 31.97], [-9.5, 31.75], [-10.03, 31.97], [-10.25, 32.5]]]]}, "2022-06-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-12.03, 29.97], [-12.25, 30.5], [-12.03, 31.03], [-11.5, 31.25], [-11.25, 31.15], [-11.0, 31.25], [-10.75, 31.15], [-10.68, 31.18], [-10.65, 31.25], [-10.75, 31.5], [-10.53, 32.03], [-10.18, 32.18], [-10.15, 32.25], [-10.25, 32.5], [-10.03, 33.03], [-9.5, 33.25], [-8.97, 33.03], [-8.75, 32.5], [-8.85, 32.25], [-8.75, 32.0], [-8.97, 31.47], [-9.32, 31.32], [-9.35, 31.25], [-9.25, 31.0], [-9.35, 30.75], [-9.25, 30.5], [-9.35, 30.25], [-9.25, 30.0], [-9.35, 29.75], [-9.25, 29.5], [-9.35, 29.25], [-9.32, 29.18], [-8.97, 29.03], [-8.75, 28.5], [-8.97, 27.97], [-9.32, 27.82], [-9.35, 27.75], [-9.25, 27.5], [-9.47, 26.97], [-10.0, 26.75], [-10.25, 26.85], [-10.5, 26.75], [-10.75, 26.85], [-11.0, 26.75], [-11.53, 26.97], [-11.75, 27.5], [-11.53, 28.03], [-11.18, 28.18], [-11.15, 28.25], [-11.25, 28.5], [-11.03, 29.03], [-10.68, 29.18], [-10.65, 29.25], [-10.75, 29.5], [-10.65, 29.75], [-10.68, 29.82], [-10.75, 29.85], [-11.0, 29.75], [-11.25, 29.85], [-11.5, 29.75], [-12.03, 29.97]]]]}, "2022-06-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-12.03, 29.97], [-12.25, 30.5], [-12.03, 31.03], [-11.5, 31.25], [-11.25, 31.15], [-11.0, 31.25], [-10.75, 31.15], [-10.68, 31.18], [-10.65, 31.25], [-10.75, 31.5], [-10.53, 32.03], [-10.18, 32.18], [-10.15, 32.25], [-10.25, 32.5], [-10.03, 33.03], [-9.68, 33.18], [-9.53, 33.53], [-9.0, 33.75], [-8.47, 33.53], [-8.25, 33.0], [-8.47, 32.47], [-8.82, 32.32], [-8.85, 32.25], [-8.75, 32.0], [-8.97, 31.47], [-9.32, 31.32], [-9.35, 31.25], [-9.25, 31.0], [-9.35, 30.75], [-9.25, 30.5], [-9.35, 30.25], [-9.25, 30.0], [-9.35, 29.75], [-9.25, 29.5], [-9.35, 29.25], [-9.32, 29.18], [-8.97, 29.03], [-8.82, 28.68], [-8.47, 28.53], [-8.25, 28.0], [-8.47, 27.47], [-8.82, 27.32], [-8.85, 27.25], [-8.75, 27.0], [-8.97, 26.47], [-9.5, 26.25], [-9.75, 26.35], [-10.0, 26.25], [-10.53, 26.47], [-10.68, 26.82], [-10.75, 26.85], [-11.0, 26.75], [-11.53, 26.97], [-11.75, 27.5], [-11.53, 28.03], [-11.18, 28.18], [-11.15, 28.25], [-11.25, 28.5], [-11.03, 29.03], [-10.68, 29.18], [-10.65, 29.25], [-10.75, 29.5], [-10.65, 29.75], [-10.68, 29.82], [-10.75, 29.85], [-11.0, 29.75], [-11.25, 29.85], [-11.5, 29.75], [-12.03, 29.97]]]]}, "2022-06-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-12.03, 29.97], [-12.25, 30.5], [-12.03, 31.03], [-11.5, 31.25], [-11.25, 31.15], [-11.0, 31.25], [-10.75, 31.15], [-10.68, 31.18], [-10.65, 31.25], [-10.75, 31.5], [-10.53, 32.03], [-10.18, 32.18], [-10.15, 32.25], [-10.25, 32.5], [-10.03, 33.03], [-9.68, 33.18], [-9.53, 33.53], [-9.0, 33.75], [-8.47, 33.53], [-8.25, 33.0], [-8.47, 32.47], [-8.82, 32.32], [-8.85, 32.25], [-8.75, 32.0], [-8.97, 31.47], [-9.32, 31.32], [-9.35, 31.25], [-9.25, 31.0], [-9.35, 30.75], [-9.25, 30.5], [-9.35, 30.25], [-9.25, 30.0], [-9.35, 29.75], [-9.25, 29.5], [-9.35, 29.25], [-9.32, 29.18], [-8.97, 29.03], [-8.82, 28.68], [-8.47, 28.53], [-8.25, 28.0], [-8.47, 27.47], [-8.82, 27.32], [-8.85, 27.25], [-8.75, 27.0], [-8.97, 26.47], [-9.5, 26.25], [-9.75, 26.35], [-10.0, 26.25], [-10.53, 26.47], [-10.68, 26.82], [-10.75, 26.85], [-11.0, 26.75], [-11.53, 26.97], [-11.75, 27.5], [-11.53, 28.03], [-11.18, 28.18], [-11.15, 28.25], [-11.25, 28.5], [-11.03, 29.03], [-10.68, 29.18], [-10.65, 29.25], [-10.75, 29.5], [-10.65, 29.75], [-10.68, 29.82], [-10.75, 29.85], [-11.0, 29.75], [-11.25, 29.85], [-11.5, 29.75], [-12.03, 29.97]]]]}, "2022-07-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-11.03, 28.53], [-10.68, 28.68], [-10.65, 28.75], [-10.75, 29.0], [-10.65, 29.25], [-10.75, 29.5], [-10.65, 29.75], [-10.68, 29.82], [-11.03, 29.97], [-11.25, 30.5], [-11.03, 31.03], [-10.68, 31.18], [-10.65, 31.25], [-10.75, 31.5], [-10.53, 32.03], [-10.18, 32.18], [-10.15, 32.25], [-10.25, 32.5], [-10.03, 33.03], [-9.68, 33.18], [-9.53, 33.53], [-9.0, 33.75], [-8.47, 33.53], [-8.25, 33.0], [-8.47, 32.47], [-8.82, 32.32], [-8.85, 32.25], [-8.75, 32.0], [-8.97, 31.47], [-9.32, 31.32], [-9.35, 31.25], [-9.25, 31.0], [-9.35, 30.75], [-9.25, 30.5], [-9.35, 30.25], [-9.25, 30.0], [-9.35, 29.75], [-9.25, 29.5], [-9.35, 29.25], [-9.32, 29.18], [-8.97, 29.03], [-8.82, 28.68], [-8.47, 28.53], [-8.25, 28.0], [-8.47, 27.47], [-8.82, 27.32], [-8.85, 27.25], [-8.75, 27.0], [-8.97, 26.47], [-9.5, 26.25], [-9.75, 26.35], [-10.0, 26.25], [-10.53, 26.47], [-10.68, 26.82], [-11.03, 26.97], [-11.25, 27.5], [-11.15, 27.75], [-11.25, 28.0], [-11.03, 28.53]]]]}, "2022-07-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-10.65, 30.75], [-10.75, 31.0], [-10.65, 31.25], [-10.75, 31.5], [-10.53, 32.03], [-10.18, 32.18], [-10.15, 32.25], [-10.25, 32.5], [-10.03, 33.03], [-9.5, 33.25], [-8.97, 33.03], [-8.75, 32.5], [-8.85, 32.25], [-8.75, 32.0], [-8.97, 31.47], [-9.32, 31.32], [-9.35, 31.25], [-9.25, 31.0], [-9.35, 30.75], [-9.25, 30.5], [-9.35, 30.25], [-9.25, 30.0], [-9.47, 29.47], [-10.0, 29.25], [-10.53, 29.47], [-10.75, 30.0], [-10.65, 30.25], [-10.75, 30.5], [-10.65, 30.75]]]]}, "2022-07-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-10.75, 31.0], [-10.53, 31.53], [-10.12, 31.7], [-10.25, 32.0], [-10.15, 32.25], [-10.25, 32.5], [-10.03, 33.03], [-9.5, 33.25], [-8.97, 33.03], [-8.75, 32.5], [-8.85, 32.25], [-8.75, 32.0], [-8.97, 31.47], [-9.37, 31.3], [-9.25, 31.0], [-9.46, 30.5], [-9.25, 30.0], [-9.47, 29.47], [-9.82, 29.32], [-9.97, 28.97], [-10.5, 28.75], [-11.03, 28.97], [-11.25, 29.5], [-11.03, 30.03], [-10.68, 30.18], [-10.54, 30.5], [-10.75, 31.0]]]]}, "2022-07-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-11.03, 30.03], [-10.68, 30.18], [-10.54, 30.5], [-10.75, 31.0], [-10.65, 31.25], [-10.75, 31.5], [-10.53, 32.03], [-10.18, 32.18], [-10.15, 32.25], [-10.25, 32.5], [-10.03, 33.03], [-9.5, 33.25], [-8.97, 33.03], [-8.75, 32.5], [-8.85, 32.25], [-8.75, 32.0], [-8.97, 31.47], [-9.32, 31.32], [-9.35, 31.25], [-9.25, 31.0], [-9.46, 30.5], [-9.25, 30.0], [-9.47, 29.47], [-9.82, 29.32], [-9.85, 29.25], [-9.75, 29.0], [-9.97, 28.47], [-10.5, 28.25], [-11.03, 28.47], [-11.25, 29.0], [-11.15, 29.25], [-11.25, 29.5], [-11.03, 30.03]]]]}, "2022-07-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-11.18, 29.68], [-11.03, 30.03], [-10.68, 30.18], [-10.54, 30.5], [-10.75, 31.0], [-10.65, 31.25], [-10.75, 31.5], [-10.53, 32.03], [-10.18, 32.18], [-10.15, 32.25], [-10.25, 32.5], [-10.03, 33.03], [-9.5, 33.25], [-8.97, 33.03], [-8.75, 32.5], [-8.85, 32.25], [-8.75, 32.0], [-8.97, 31.47], [-9.32, 31.32], [-9.35, 31.25], [-9.25, 31.0], [-9.46, 30.5], [-9.25, 30.0], [-9.47, 29.47], [-9.82, 29.32], [-9.85, 29.25], [-9.75, 29.0], [-9.97, 28.47], [-10.32, 28.32], [-10.47, 27.97], [-11.0, 27.75], [-11.25, 27.85], [-11.5, 27.75], [-12.03, 27.97], [-12.25, 28.5], [-12.03, 29.03], [-11.68, 29.18], [-11.53, 29.53], [-11.18, 29.68]]]]}, "2022-07-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-11.18, 29.68], [-11.03, 30.03], [-10.68, 30.18], [-10.54, 30.5], [-10.75, 31.0], [-10.65, 31.25], [-10.75, 31.5], [-10.53, 32.03], [-10.12, 32.2], [-10.25, 32.5], [-10.03, 33.03], [-9.5, 33.25], [-8.97, 33.03], [-8.75, 32.5], [-8.97, 31.97], [-9.37, 31.8], [-9.25, 31.5], [-9.35, 31.25], [-9.25, 31.0], [-9.46, 30.5], [-9.25, 30.0], [-9.47, 29.47], [-9.82, 29.32], [-9.85, 29.25], [-9.75, 29.0], [-9.97, 28.47], [-10.32, 28.32], [-10.47, 27.97], [-11.0, 27.75], [-11.25, 27.85], [-11.5, 27.75], [-12.03, 27.97], [-12.25, 28.5], [-12.03, 29.03], [-11.68, 29.18], [-11.53, 29.53], [-11.18, 29.68]]]]}, "2022-07-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-11.18, 29.68], [-11.03, 30.03], [-10.68, 30.18], [-10.53, 30.53], [-10.0, 30.75], [-9.47, 30.53], [-9.25, 30.0], [-9.47, 29.47], [-9.82, 29.32], [-9.85, 29.25], [-9.75, 29.0], [-9.97, 28.47], [-10.32, 28.32], [-10.47, 27.97], [-11.0, 27.75], [-11.25, 27.85], [-11.5, 27.75], [-12.03, 27.97], [-12.25, 28.5], [-12.03, 29.03], [-11.68, 29.18], [-11.53, 29.53], [-11.18, 29.68]]]]}, "2022-07-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-11.03, 30.03], [-10.5, 30.25], [-9.97, 30.03], [-9.75, 29.5], [-9.97, 28.97], [-10.5, 28.75], [-10.93, 28.93], [-10.75, 28.5], [-10.97, 27.97], [-11.5, 27.75], [-12.03, 27.97], [-12.25, 28.5], [-12.03, 29.03], [-11.5, 29.25], [-11.07, 29.07], [-11.25, 29.5], [-11.03, 30.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -6.793893023430542}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.7286808316442333}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [18.612261425434724, 19.290490751424443, 19.915843669565504, 20.002068218860927, 19.994405620165367, 18.724275585868952, 18.84904842125536, 18.751598512126748, 18.954602212888346, 18.935887231011634, 19.052778371596617, 18.998463682728016]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [17.714720975819887, 17.407177387942113, 17.66603827697776, 17.56406986770429, 17.51882643274405, 18.105344206982807, 18.218717696501926, 17.9149058561855, 17.74743331924236, 17.905444587801924, 17.96213133256157, 18.565307408398724]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.684007143408144, -2.907559213349678, -3.483024134937691, -3.449881425011963, -3.842700853131776, -1.2565844667943982, -1.1657753538235625, -1.3562556121801694, -1.3996215369405376, -1.3617228497482694, -1.3549016828361857, -1.0444973878485655]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-4.446437902949356, -5.634044564984151, -6.436458316629853, -6.353760925403492, -6.793893023430542, -1.6691564358317237, -1.4596358760164208, -1.6510393792926266, -1.7633593533872158, -1.9359220824101158, -1.7401377450480027, -1.1701803328118103]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.1003229374761117, -1.19188624653004, -1.2167552506467656, -1.2536658262522902, -1.2983877340126757, -1.206732090885699, -1.1858054383106964, -1.2923597958528286, -1.3007573487815378, -1.2689863742244452, -1.1936680081363513, -1.2555430560671321]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.4937686528394363, -1.8781523616350697, -1.9832809220006247, -2.2954833406492474, -1.981736657074017, -1.6624245723562663, -1.5482190858967688, -1.761446361944921, -1.7772164868541398, -1.5070688154466418, -1.6280636451855484, -1.4771093534847788]}}