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Horizontal pressure gradient parameterization for one-dimensional lake modelsстатья Исследовательская статья
Статья опубликована в высокорейтинговом журнале
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 15 апреля 2020 г.
- Авторы: Stepanenko V.M., Valerio G., Pilotti M.
- Журнал: JOURNAL OF ADVANCES IN MODELING EARTH SYSTEMS
- Том: 12
- Номер: 2
- Год издания: 2020
- Первая страница: e2019MS001906
- DOI: 10.1029/2019ms001906
- Аннотация: This work presents a new method for closure of horizontally‐averaged 1D thermohydrodynamic equations in an enclosed reservoir by parameterizing the horizontal pressure gradient usually omitted in 1D lake models. Horizontal pressure gradient is computed using an auxiliary multilayer model where horizontal structure of speed and pressure is given by 1‐st Fourier mode. A major effect of new parameterization in 1D lake model is the emergence of explicitly reproduced H1 seiche modes. The parameterization is implemented in the LAKE model, with minor (2%‐4%) extra computational cost imposed. The model is applied to Lake Iseo (Italy), and calculated temperature series are compared to measured ones in upper, middle and deep portions of metalimnion. The amplitude of seiche‐induced temperature oscillations well matched the observed amplitude by tuning the bottom friction coefficient only. The synoptic variability of thermocline vertical displacement caused by wind events is well reproduced by the model. The dominant peak of quasi‐diurnal period in temperature power spectrum was captured in simulations as well. Using the new parameterization of horizontal pressure gradient extends the applicability of a 1D lake model formulation to small lakes, which size is less than internal Rossby radius, and where pressure gradient dominates over Coriolis force.
- Добавил в систему: Степаненко Виктор Михайлович
Прикрепленные файлы
| № | Имя | Описание | Имя файла | Размер | Добавлен |
|---|---|---|---|---|---|
| 1. | Полный текст | Stepanenko_et_al-2020-Journal_of_Advances_in_Modeling_Earth… | 24,1 МБ | 30 января 2020 [Vittorio1981] | |
| 2. | Supporting information | jame21063-sup-0002-text_si-s01.pdf | 330,7 КБ | 30 января 2020 [Vittorio1981] |