Changeset 13916 for NEMO/trunk/doc/latex/NEMO/subfiles/chap_LBC.tex
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- 2020-11-30T12:11:25+01:00 (3 years ago)
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NEMO/trunk/doc/latex/NEMO/subfiles/chap_LBC.tex
r11693 r13916 16 16 Release & Author(s) & Modifications \\ 17 17 \hline 18 {\em next} & {\em Simon M{\" u}ller} & {\em Minor update of \autoref{subsec:LBC_bdy_tides}} \\[2mm] 18 19 {\em 4.0} & {\em ...} & {\em ...} \\ 19 20 {\em 3.6} & {\em ...} & {\em ...} \\ … … 665 666 666 667 Tidal forcing at open boundaries requires the activation of surface 667 tides (i.e., in \nam{_tide}{\_tide}, \np{ln_tide}{ln\_tide} needs to be set to 668 \forcode{.true.} and the required constituents need to be activated by 669 including their names in the \np{clname}{clname} array; see 670 \autoref{sec:SBC_tide}). Specific options related to the reading in of 668 tides (i.e., in \nam{_tide}{\_tide}, \np[=.true.]{ln_tide}{ln\_tide} with the active tidal 669 constituents listed in the \np{sn_tide_cnames}{sn\_tide\_cnames} array; see 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) atopen boundaries are defined through the673 \nam{bdy_tide}{bdy\_tide} namelist parameters.\ \672 velocity components (u,v) at the open boundaries are defined through the 673 \nam{bdy_tide}{bdy\_tide} namelist parameters.\par 674 674 675 675 The tidal harmonic data at open boundaries can be specified in two 676 676 different ways, either on a two-dimensional grid covering the entire 677 677 model domain or along open boundary segments; these two variants can 678 be selected by setting \np{ln_bdytide_2ddta }{ln\_bdytide\_2ddta } to \forcode{.true.} or 679 \forcode{.false.}, respectively. In either case, the real and 680 imaginary parts of SSH and the two barotropic velocity components for 681 each activated tidal constituent \textit{tcname} have to be provided 682 separately: when two-dimensional data is used, variables 683 \textit{tcname\_z1} and \textit{tcname\_z2} for real and imaginary SSH, 684 respectively, are expected in input file \np{filtide}{filtide} with suffix 685 \ifile{\_grid\_T}, variables \textit{tcname\_u1} and 686 \textit{tcname\_u2} for real and imaginary u, respectively, are 687 expected in input file \np{filtide}{filtide} with suffix \ifile{\_grid\_U}, and 688 \textit{tcname\_v1} and \textit{tcname\_v2} for real and imaginary v, 689 respectively, are expected in input file \np{filtide}{filtide} with suffix 690 \ifile{\_grid\_V}; when data along open boundary segments is used, 691 variables \textit{z1} and \textit{z2} (real and imaginary part of SSH) 692 are expected to be available from file \np{filtide}{filtide} with suffix 693 \ifile{tcname\_grid\_T}, variables \textit{u1} and \textit{u2} (real 694 and imaginary part of u) are expected to be available from file 695 \np{filtide}{filtide} with suffix \ifile{tcname\_grid\_U}, and variables 696 \textit{v1} and \textit{v2} (real and imaginary part of v) are 697 expected to be available from file \np{filtide}{filtide} with suffix 698 \ifile{tcname\_grid\_V}. If \np{ln_bdytide_conj}{ln\_bdytide\_conj} is set to 699 \forcode{.true.}, the data is expected to be in complex conjugate 700 form. 678 be selected by setting \np[=.true.]{ln_bdytide_2ddta}{ln\_bdytide\_2ddta} or 679 \np[=.false.]{ln_bdytide_2ddta}{ln\_bdytide\_2ddta}, respectively. In either 680 case, the real and imaginary parts of SSH, u, and v amplitudes associated with 681 each activated tidal constituent \texttt{<constituent>} have to be provided 682 separately as fields in input files with names based on 683 \np[=<input>]{filtide}{filtide}: when two-dimensional data is used, variables 684 \texttt{<constituent>\_z1} and \texttt{<constituent>\_z2} for the real and imaginary parts of 685 SSH, respectively, are expected to be available in file 686 \ifile{<input>\_grid\_T}, variables \texttt{<constituent>\_u1} and 687 \texttt{<constituent>\_u2} for the real and imaginary parts of u, respectively, in file 688 \ifile{<input>\_grid\_U}, and \texttt{<constituent>\_v1} and 689 \texttt{<constituent>\_v2} for the real and imaginary parts of v, respectively, in file 690 \ifile{<input>\_grid\_V}; when data along open boundary segments is used, 691 variables \texttt{z1} and \texttt{z2} (real and imaginary part of SSH) are 692 expected to be available in file \ifile{<input><constituent>\_grid\_T}, 693 variables \texttt{u1} and \texttt{u2} (real and imaginary part of u) in file 694 \ifile{<input><constituent>\_grid\_U}, and variables \texttt{v1} and \texttt{v2} 695 (real and imaginary part of v) in file 696 \ifile{<input><constituent>\_grid\_V}.\par 701 697 702 698 Note that the barotropic velocity components are assumed to be defined
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