Changeset 13913
- Timestamp:
- 2020-11-30T11:27:08+01:00 (3 years ago)
- Location:
- NEMO/branches/2019/dev_r13813_ENHANCE-12_SimonM-Tides_doc/doc/latex/NEMO/subfiles
- Files:
-
- 2 edited
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NEMO/branches/2019/dev_r13813_ENHANCE-12_SimonM-Tides_doc/doc/latex/NEMO/subfiles/chap_LBC.tex
r13844 r13913 16 16 Release & Author(s) & Modifications \\ 17 17 \hline 18 {\em next} & {\em Minor update of \autoref{subsec:LBC_bdy_tides}} \\[2mm]18 {\em next} & {\em Simon M{\" u}ller} & {\em Minor update of \autoref{subsec:LBC_bdy_tides}} \\[2mm] 19 19 {\em 4.0} & {\em ...} & {\em ...} \\ 20 20 {\em 3.6} & {\em ...} & {\em ...} \\ … … 670 670 \autoref{sec:SBC_TDE}). The specific options related to the reading in of 671 671 the complex harmonic amplitudes of elevation (SSH) and barotropic 672 velocity (u,v) at the open boundaries are defined through the672 velocity components (u,v) at the open boundaries are defined through the 673 673 \nam{bdy_tide}{bdy\_tide} namelist parameters.\par 674 674 … … 682 682 separately as fields in input files with names based on 683 683 \np[=<input>]{filtide}{filtide}: when two-dimensional data is used, variables 684 \texttt{<constituent>\_z1} and \texttt{<constituent>\_z2} for real and imaginary684 \texttt{<constituent>\_z1} and \texttt{<constituent>\_z2} for the real and imaginary parts of 685 685 SSH, respectively, are expected to be available in file 686 686 \ifile{<input>\_grid\_T}, variables \texttt{<constituent>\_u1} and 687 \texttt{<constituent>\_u2} for real and imaginaryu, respectively, in file687 \texttt{<constituent>\_u2} for the real and imaginary parts of u, respectively, in file 688 688 \ifile{<input>\_grid\_U}, and \texttt{<constituent>\_v1} and 689 \texttt{<constituent>\_v2} for real and imaginaryv, respectively, in file689 \texttt{<constituent>\_v2} for the real and imaginary parts of v, respectively, in file 690 690 \ifile{<input>\_grid\_V}; when data along open boundary segments is used, 691 691 variables \texttt{z1} and \texttt{z2} (real and imaginary part of SSH) are -
NEMO/branches/2019/dev_r13813_ENHANCE-12_SimonM-Tides_doc/doc/latex/NEMO/subfiles/chap_SBC.tex
r13844 r13913 1025 1025 \subsection{Tidal constituents} 1026 1026 Ocean model component TDE provides the common functionality for tidal forcing 1027 and tidal analysis in the model framework. This includes the gravitational1028 surface forcing, as well as support slateral forcing at open boundaries (see1027 and tidal analysis in the model framework. This includes the computation of the gravitational 1028 surface forcing, as well as support for lateral forcing at open boundaries (see 1029 1029 \autoref{subsec:LBC_bdy_tides}) and tidal harmonic analysis (see 1030 1030 \autoref{subsec:DIA_diamlr} and \autoref{subsec:DIA_diadetide}). The module is … … 1040 1040 K2, K1, O1, Q1, P1, M4, Mf, Mm, Msqm, Mtm, S1, MU2, NU2, L2, and T2; see file 1041 1041 \hf{tide}) and associated parameters that have been available in NEMO version 1042 4.0 and earlier are available}. Constituents to be included in t idal forcing1042 4.0 and earlier are available}. Constituents to be included in the tidal forcing 1043 1043 (surface and lateral boundaries) are selected by enumerating their respective 1044 1044 names in namelist array \np{sn_tide_cnames}{sn\_tide\_cnames}.\par … … 1051 1051 \Pi_{eq} + \Pi_{sal}) 1052 1052 \] 1053 where $\ Pi_{eq}$ stands for the equilibrium tidal forcing scaled by a spatially1054 uniform tilt factor $\gamma$, and , if selected,$\Pi_{sal}$ is an optional1053 where $\gamma \Pi_{eq}$ stands for the equilibrium tidal forcing scaled by a spatially 1054 uniform tilt factor $\gamma$, and $\Pi_{sal}$ is an optional 1055 1055 self-attraction and loading term (SAL). These additional terms are enabled when, 1056 1056 in addition to \np[=.true.]{ln_tide}{ln\_tide}), … … 1068 1068 to select the four tidal constituents of strongest equilibrium tidal 1069 1069 potential). The tidal tilt factor $\gamma = 1 + k - h$ includes the 1070 Love numbers $k$ and $h$ \citep{love_prsla1909}; this valueis1070 Love numbers $k$ and $h$ \citep{love_prsla1909}; this factor is 1071 1071 configurable using \np{rn_tide_gamma} (default value 0.7). Optionally, 1072 1072 when \np[=.true.]{ln_tide_ramp}{ln\_tide\_ramp}, the equilibrium tidal … … 1078 1078 discussion about the practical implementation of this term). The complex 1079 1079 calculations involved in such computations, however, are computationally very 1080 expensive. Here, two mutually exclusive simpler variants are available: an1081 oscillatory $\Pi_{sal}$ field for each of the selected tidal constituents 1082 generated by an external modelcan be read in1080 expensive. Here, two mutually exclusive simpler variants are available: 1081 amplitudes generated by an external model for oscillatory $\Pi_{sal}$ 1082 contributions from each of the selected tidal constituents can be read in 1083 1083 (\np[=.true.]{ln_read_load}{ln\_read\_load}) from the file specified in 1084 1084 \np{cn_tide_load}{cn\_tide\_load} (the variable names are comprised of the 1085 tidal-constituent name and suffixes \forcode{_z1} and \forcode{_z2} for t wo1086 orthogonal oscillatory conponents, respectively); alternatively, a ``scalar1087 approximation''can be used (\np[=.true.]{ln_scal_load}{ln\_scal\_load}), where1085 tidal-constituent name and suffixes \forcode{_z1} and \forcode{_z2} for the two 1086 orthogonal components, respectively); alternatively, a ``scalar approximation'' 1087 can be used (\np[=.true.]{ln_scal_load}{ln\_scal\_load}), where 1088 1088 \[ 1089 1089 \Pi_{sal} = \beta \eta,
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