Changeset 10442 for NEMO/trunk/doc/latex/NEMO/subfiles/chap_OBS.tex
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NEMO/trunk/doc/latex/NEMO/subfiles/chap_OBS.tex
r10414 r10442 30 30 This now works in a generalised vertical coordinate system. 31 31 32 Some profile observation types ( e.g.tropical moored buoys) are made available as daily averaged quantities.32 Some profile observation types (\eg tropical moored buoys) are made available as daily averaged quantities. 33 33 The observation operator code can be set-up to calculate the equivalent daily average model temperature fields using 34 34 the \np{nn\_profdavtypes} namelist array. … … 542 542 the model equivalent of the observation is calculated by interpolating from 543 543 the four surrounding grid points to the observation location. 544 Some satellite observations ( e.g.microwave satellite SST data, or satellite SSS data) have a footprint which544 Some satellite observations (\eg microwave satellite SST data, or satellite SSS data) have a footprint which 545 545 is similar in size or larger than the model grid size (particularly when the grid size is small). 546 546 In those cases the model counterpart should be calculated by averaging the model grid points over … … 612 612 and $M$ corresponds to $B$, $C$ or $D$. 613 613 A more stable form of the great-circle distance formula for small distances ($x$ near 1) 614 involves the arcsine function ( $e.g.$see p.~101 of \citet{Daley_Barker_Bk01}:614 involves the arcsine function (\eg see p.~101 of \citet{Daley_Barker_Bk01}: 615 615 \begin{align*} 616 616 s\left( {\rm P}, {\rm M} \right) & \hspace{-2mm} = \hspace{-2mm} & \sin^{-1} \! \left\{ \sqrt{ 1 - x^2 } \right\} … … 682 682 \protect\label{fig:obsavgrec} 683 683 Weights associated with each model grid box (blue lines and numbers) 684 for an observation at -170.5 E, 56.0Nwith a rectangular footprint of 1\deg x 1\deg.684 for an observation at -170.5\deg{E}, 56.0\deg{N} with a rectangular footprint of 1\deg x 1\deg. 685 685 } 686 686 \end{center} … … 695 695 \protect\label{fig:obsavgrad} 696 696 Weights associated with each model grid box (blue lines and numbers) 697 for an observation at -170.5 E, 56.0Nwith a radial footprint with diameter 1\deg.697 for an observation at -170.5\deg{E}, 56.0\deg{N} with a radial footprint with diameter 1\deg. 698 698 } 699 699 \end{center} … … 741 741 \end{align*} 742 742 point in the opposite direction to the unit normal $\widehat{\bf k}$ 743 ( i.e.,that the coefficients of $\widehat{\bf k}$ are negative),743 (\ie that the coefficients of $\widehat{\bf k}$ are negative), 744 744 where ${{\bf r}_{}}_{\rm PA}$, ${{\bf r}_{}}_{\rm PB}$, etc. correspond to 745 745 the vectors between points P and A, P and B, etc.. … … 790 790 any MPP communication. 791 791 Of course, this is under the assumption that we are only using a $2 \times 2$ grid-point stencil for 792 the interpolation ( e.g.,bilinear interpolation).792 the interpolation (\eg bilinear interpolation). 793 793 For higher order interpolation schemes this is no longer valid. 794 794 A disadvantage with the above scheme is that the number of observations on each processor can be very different. … … 995 995 \begin{description} 996 996 \item[cl4\_prefix] 997 Prefix for class 4 files e.g.class4997 Prefix for class 4 files \eg class4 998 998 \item[cl4\_date] 999 999 YYYYMMDD validity date 1000 1000 \item[cl4\_sys] 1001 The name of the class 4 model system e.g.FOAM1001 The name of the class 4 model system \eg FOAM 1002 1002 \item[cl4\_cfg] 1003 The name of the class 4 model configuration e.g.orca0251003 The name of the class 4 model configuration \eg orca025 1004 1004 \item[cl4\_vn] 1005 The name of the class 4 model version e.g.12.01005 The name of the class 4 model version \eg 12.0 1006 1006 \end{description} 1007 1007 … … 1021 1021 The name of the producers institution. 1022 1022 \item[cl4\_cfg] 1023 The name of the class 4 model configuration e.g.orca0251023 The name of the class 4 model configuration \eg orca025 1024 1024 \item[cl4\_vn] 1025 The name of the class 4 model version e.g.12.01025 The name of the class 4 model version \eg 12.0 1026 1026 \end{description} 1027 1027 … … 1164 1164 Some tools for viewing and processing of observation and feedback files are provided in 1165 1165 the NEMO repository for convenience. 1166 These include OBSTOOLS which are a collection of Fortran programs which are helpful to deal with feedback files.1166 These include OBSTOOLS which are a collection of \fortran programs which are helpful to deal with feedback files. 1167 1167 They do such tasks as observation file conversion, printing of file contents, 1168 1168 some basic statistical analysis of feedback files. … … 1173 1173 \subsection{Obstools} 1174 1174 1175 A series of Fortran utilities is provided with NEMO called OBSTOOLS.1175 A series of \fortran utilities is provided with NEMO called OBSTOOLS. 1176 1176 This are helpful in handling observation files and the feedback file output from the NEMO observation operator. 1177 1177 The utilities are as follows … … 1398 1398 \biblio 1399 1399 1400 \pindex 1401 1400 1402 \end{document}
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