Transitional Stratocumulus Events ==================================== :numref:`TableCaseDatesT` lists case dates for transitional events. .. list-table:: Case dates selected for LASSO-ENA for its transitional stratocumulus events. :name: TableCaseDatesT :header-rows: 1 :class: tight-table :widths: 15 20 65 * - Case - Date - Description * - 1 - :ref:`2016-05-08 ` - * Multi-day transitional event with precipitating closed and open cell behaviors * Modest winds from the north throughout the event * 5-day air mass back-trajectories originating from Greenland * - 2 - :ref:`2016-05-09 ` - * Multi-day transitional event with precipitating closed and open cell behaviors * Modest winds from the north throughout the event * 5-day air mass back-trajectories originating from Greenland * - 3 - :ref:`2016-10-22 ` - * Widespread open cell cumulus with small gaps between individual cells * Modest winds from the northerly direction throughout the event * 5-day air mass back-trajectories originating from Alaska * - 4 - :ref:`2016-10-31 ` - * Widespread closed stratocumulus with pockets of open cells to northeast of the domain * Modest low-level northerly winds * 5-day air mass back-trajectories originating from Quebec, Greenland * - 5 - :ref:`2017-03-17 ` - * Multi-day transition to widespread closed cell precipitating clouds over ENA main site * Persistent high clouds that built throughout the event * 5-day air mass back-trajectories originating from Quebec * - 6 - :ref:`2017-03-18 ` - * Multi-day transition to widespread closed cell precipitating clouds over ENA main site * Persistent high clouds that built throughout the event * 5-day air mass back-trajectories originating from Quebec * - 7 - :ref:`2017-08-26 ` - * Daytime development of closed cell conditions over the ENA main site. * Light winds from a northerly direction * 5-day air mass back-trajectories originating from Nova Scotia * - 8 - :ref:`2017-11-01 ` - * Post-frontal open cell cumulus event that transitioned to closed cell behaviors * Light northerly winds throughout the event * 5-day air mass back-trajectories originating from the North Atlantic, Greenland * - 9 - :ref:`2018-02-07 ` - * Stratocumulus with relatively solid deck over the ENA site * Light winds from the northeast * ACE-ENA campaign day with G-1 aircraft operations * 5-day air mass back-trajectories that originated over US central plains * - 10 - :ref:`2018-05-02 ` - * Closed stratocumulus deck confined to a narrow band over the Azores * Deck gradually thinned, while low-level winds shift easterly * 5-day air mass back-trajectories originating from the northwestern US and Canada * - 11 - :ref:`2018-05-12 ` - * Extended closed stratocumulus event over the ENA site * Regional cloud coverage was less contiguous, but common throughout the domain * 5-day air mass back-trajectories originating from western Canada * - 12 - :ref:`2018-06-27 ` - * A complex multi-layer cloud event that transitioned into a single layer deck * Light westerly winds becoming northerly as the event evolved * 5-day air mass back-trajectories originating over the western Atlantic * - 13 - :ref:`2018-06-30 ` - * Transitional, multi-day event from closed to open cell cumulus conditions * Light northeasterly winds observed throughout the event * 5-day air mass back-trajectories originating from the upper Hudson Bay * - 14 - :ref:`2018-07-01 ` - * Continuous ENA stratocumulus coverage with broken regional cloud coverage * Light low-level winds from the north * 5-day air mass back-trajectories that originated from Nova Scotia, Quebec * - 15 - :ref:`2018-07-30 ` - * Multi-day closed cell stratocumulus event over the ENA site * Broken regional cloud coverage with thin stratocumulus cloud decks * 5-day air mass back-trajectories originating over the western Atlantic * - 16 - :ref:`2018-08-06 ` - * Multi-day closed stratocumulus event with asymmetric cloud coverage * Light low-level winds from the east that shifted westerly * 5-day air mass back-trajectories originating from the western Atlantic * - 17 - :ref:`2018-08-07 ` - * Multi-day closed stratocumulus event with asymmetric cloud coverage * Light low-level winds from the east that shifted westerly * 5-day air mass back-trajectories originating from the western Atlantic * - 18 - :ref:`2019-03-28 ` - * Closed cell stratocumulus deck with a mixture of precipitating conditions * Closed cell conditions formed over a relative narrow (200 km) band * 5-day air mass back-trajectories originating from Iceland, the UK * - 19 - :ref:`2019-03-31 ` - * Transitional closed to open cell cumulus event * Light northerly winds * 5-day air mass back-trajectories originating over the northern Atlantic * - 20 - :ref:`2019-04-04 ` - * Open cell event with minimal gaps between individual cells * Light northerly winds throughout the event * 5-day air mass back-trajectories originating from Alaska * - 21 - :ref:`2019-09-07 ` - * Continuous stratocumulus deck that gradually thinned, broke * Winds from the east * 5-day air mass back-trajectories originating from Nova Scotia .. * - 15 (Extra case Scott described but is not simulated at this point; keeping here as a comment for now) - :ref:`2018-07-29 ` - * Multi-day closed cell stratocumulus event over the ENA site * Broken regional cloud coverage with thin stratocumulus cloud decks * 5-day air mass back-trajectories originating over the western Atlantic .. toctree:: :maxdepth: 0 :caption: Descriptions for days with Transitional Sc LES simulations :hidden: enacase_20160508 enacase_20160509 enacase_20161022 enacase_20161031 enacase_20170317 enacase_20170318 enacase_20170826 enacase_20171101 enacase_20180207 enacase_20180502 enacase_20180512 enacase_20180627 enacase_20180630 enacase_20180701 enacase_20180730 enacase_20180806 enacase_20180807 enacase_20190328 enacase_20190331 enacase_20190404 enacase_20190907