Class | saturate_nha1992 |
In: |
saturate/saturate_nha1992.F90
|
Note that Japanese and English are described in parallel.
Nakajima et al. (1992) で用いられた飽和蒸気圧 $ p^{*} $ に関する以下の式 を用い, 飽和比湿および飽和比湿の温度微分の値を算出します.
Saturation specific humidity and temperature derivative of it are calculated with a folloing formula for saturation watar vapor pressure $ p^{*} $ in Nakajima et al. (1992).
\[
p^{*} (T) = p_0^{*} \exp \left( - \frac{l}{RT} \right).
\]
ここで, $ T $ は温度, $ R $ は普遍気体定数です. $ R $ および潜熱 $ l $ , 水蒸気飽和曲線の定数 $ p_0^{*} $ は以下のように与えられます.
where $ T $ is temperature, $ R $ is the gas constant. $ R $ and latent heat $ l $ , constant for the water vapor saturation curve $ p_0^{*} $ are as follows.
飽和水蒸気圧から飽和比湿 $ q^{*} $ を求める際には, 以下の式を用います.
Saturation specific humidity $ q^{*} $ is calculated from saturation watar vapor pressure as follows.
\[
q^{*} (T, p) = \varepsilon \frac{p^{*} (T)}{p}
\]
ここで $ varepsilon $ は凝結成分と大気の分子量比, $ p $ は気圧です.
where $ varepsilon $ is molecular weight ratio of water vapor to air, $ p $ is air pressure.
従って, 飽和比湿, 飽和比湿の温度変化を求める式は以下のように なります.
Therefore, saturation specific humidity and temperature derivative of it are calculated as follows.
\[
q^{*} (T, p) = \varepsilon \frac{p_0^{*}}{p} \exp \left( - \frac{l}{RT} \right), \] \[ \DP{q^{*} (T, p)}{T} = \varepsilon \frac{p_0^{*}}{p} \frac{l}{RT^2} \exp \left( - \frac{l}{RT} \right) = q^{*} \frac{l}{RT^2}
\]
CalcQVapSat : | 飽和比湿の計算 |
CalcDQVapSatDTemp : | 飽和比湿の温度微分の計算 |
———— : | ———— |
CalcQVapSat : | Calculate saturation specific humidity |
CalcDQVapSatDTemp : | Calculate temperature derivative of saturation specific humidity |
Function : | |||
DQVapSatDTemp : | real(DP)
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Temp : | real(DP), intent(in)
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QVapSat : | real(DP), intent(in)
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温度 Temp と飽和比湿 QVapSat を用い, 飽和比湿の温度微分 DQVapSatDTemp を求めます.
Calculate temperature derivative of saturation specific humidity DQVapSatDTemp using temperature Temp and saturation specific humidity QVapSat.
function CalcDQVapSatDTemp( Temp, QVapSat ) result( DQVapSatDTemp ) ! ! 温度 *Temp* と飽和比湿 *QVapSat* を用い, ! 飽和比湿の温度微分 *DQVapSatDTemp* を求めます. ! ! Calculate temperature derivative of saturation specific humidity ! *DQVapSatDTemp* using ! temperature *Temp* and saturation specific humidity *QVapSat*. ! ! モジュール引用 ; USE statements ! ! 物理定数設定 ! Physical constants settings ! use constants, only: GasRUniv, EpsV ! $ \epsilon_v $ . ! 水蒸気分子量比. ! Molecular weight of water vapor ! 宣言文 ; Declaration statements ! implicit none real(DP), intent(in):: Temp ! $ T $ . 温度. Temperature real(DP), intent(in):: QVapSat ! $ q^{*} $ . 飽和比湿. Saturation specific humidity real(DP):: DQVapSatDTemp ! $ \DP{q^{*}}{T} $ . 飽和比湿の温度微分. ! Temperature derivative of saturation specific humidity. ! 作業変数 ! Work variables ! ! 飽和比湿計算のための文関数定義 (CalcQVapSatSF, CalcDQVapSatDTempSF) ! Declaration of statement function for ! calculation of saturation specific humidity ! ("CalcQVapSatSF", "CalcDQVapSatDTempSF") ! #include "../saturate/saturate_nha1992_sf.f90" EpsVSF = EpsV GasRUnivSF = GasRUniv ! 実行文 ; Executable statement ! ! 飽和比湿の温度微分の計算 ! Calculate temperature derivative of saturation specific humidity ! ! CalcDQVapSatDTempSF は文関数. (実行文の直前で定義) ! "CalcDQVapSatDTempSF" is statement function and ! is declared just before executable statement. ! DQVapSatDTemp = CalcDQVapSatDTempSF( Temp, QVapSat ) end function CalcDQVapSatDTemp
Function : | |||
QVapSat : | real(DP)
| ||
Temp : | real(DP), intent(in)
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Press : | real(DP), intent(in)
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温度 Temp と気圧 Press を用い, 飽和比湿 QVapSat を求めます.
Calculate saturation specific humidity QVapSat using temperature Temp and air pressure Press.
function CalcQVapSat( Temp, Press ) result( QVapSat ) ! ! 温度 *Temp* と気圧 *Press* を用い, ! 飽和比湿 *QVapSat* を求めます. ! ! Calculate saturation specific humidity *QVapSat* using ! temperature *Temp* and air pressure *Press*. ! ! モジュール引用 ; USE statements ! ! 物理定数設定 ! Physical constants settings ! use constants, only: GasRUniv, EpsV ! $ \epsilon_v $ . ! 水蒸気分子量比. ! Molecular weight of water vapor ! 宣言文 ; Declaration statements ! implicit none real(DP), intent(in):: Temp ! $ T $ . 温度. Temperature real(DP), intent(in):: Press ! $ p $ . 気圧. Air pressure real(DP):: QVapSat ! $ q^{*} $ . 飽和比湿. Saturation specific humidity ! 作業変数 ! Work variables ! ! 飽和比湿計算のための文関数定義 (CalcQVapSatSF, CalcDQVapSatDTempSF) ! Declaration of statement function for ! calculation of saturation specific humidity ! ("CalcQVapSatSF", "CalcDQVapSatDTempSF") ! #include "../saturate/saturate_nha1992_sf.f90" EpsVSF = EpsV GasRUnivSF = GasRUniv ! 実行文 ; Executable statement ! ! 飽和比湿の計算 ! Calculate saturation specific humidity ! ! CalcQVapSatSF は文関数. (実行文の直前で定義) ! "CalcQVapSatSF" is statement function and ! is declared just before executable statement. ! QVapSat = CalcQVapSatSF( Temp, Press ) end function CalcQVapSat
Variable : | |||
saturate_nha1992_inited = .false. : | logical, save, public
|
Subroutine : |
依存モジュールの初期化チェック
Check initialization of dependency modules
subroutine InitCheck ! ! 依存モジュールの初期化チェック ! ! Check initialization of dependency modules ! モジュール引用 ; USE statements ! ! 格子点設定 ! Grid points settings ! use gridset, only: gridset_inited ! 物理定数設定 ! Physical constants settings ! use constants, only: constants_inited ! 実行文 ; Executable statement ! if ( .not. gridset_inited ) call MessageNotify( 'E', module_name, '"gridset" module is not initialized.' ) if ( .not. constants_inited ) call MessageNotify( 'E', module_name, '"constants" module is not initialized.' ) end subroutine InitCheck
Subroutine : |
saturate_nha1992 モジュールの初期化を行います.
"saturate_nha1992" module is initialized.
subroutine SaturateInit ! ! saturate_nha1992 モジュールの初期化を行います. ! ! ! "saturate_nha1992" module is initialized. ! ! モジュール引用 ; USE statements ! ! NAMELIST ファイル入力に関するユーティリティ ! Utilities for NAMELIST file input ! use namelist_util, only: namelist_filename, NmlutilMsg ! ファイル入出力補助 ! File I/O support ! use dc_iounit, only: FileOpen ! 種別型パラメタ ! Kind type parameter ! use dc_types, only: STDOUT ! 標準出力の装置番号. Unit number of standard output ! 文字列操作 ! Character handling ! use dc_string, only: StoA ! ヒストリデータ出力 ! History data output ! use gtool_historyauto, only: HistoryAutoAddVariable ! 宣言文 ; Declaration statements ! implicit none !!$ integer:: unit_nml ! NAMELIST ファイルオープン用装置番号. !!$ ! Unit number for NAMELIST file open !!$ integer:: iostat_nml ! NAMELIST 読み込み時の IOSTAT. !!$ ! IOSTAT of NAMELIST read ! NAMELIST 変数群 ! NAMELIST group name ! !!$ namelist /saturate_nha1992_nml/ ! ! デフォルト値については初期化手続 "saturate_nha1992#SaturateInit" ! のソースコードを参照のこと. ! ! Refer to source codes in the initialization procedure ! "saturate_nha1992#SaturateInit" for the default values. ! ! 実行文 ; Executable statement ! if ( saturate_nha1992_inited ) return call InitCheck ! デフォルト値の設定 ! Default values settings ! !!$ ! NAMELIST の読み込み !!$ ! NAMELIST is input !!$ ! !!$ if ( trim(namelist_filename) /= '' ) then !!$ call FileOpen( unit_nml, & ! (out) !!$ & namelist_filename, mode = 'r' ) ! (in) !!$ !!$ rewind( unit_nml ) !!$ read( unit_nml, & ! (in) !!$ & nml = saturate_nha1992_nml, & ! (out) !!$ & iostat = iostat_nml ) ! (out) !!$ close( unit_nml ) !!$ !!$ call NmlutilMsg( iostat_nml, module_name ) ! (in) !!$ end if ! 印字 ; Print ! call MessageNotify( 'M', module_name, '----- Initialization Messages -----' ) call MessageNotify( 'M', module_name, '-- version = %c', c1 = trim(version) ) saturate_nha1992_inited = .true. end subroutine SaturateInit
Constant : | |||
module_name = ‘saturate_nha1992‘ : | character(*), parameter
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Constant : | |||
version = ’$Name: dcpam5-20090218-1 $’ // ’$Id: saturate_nha1992.F90,v 1.2 2008-11-23 15:08:26 morikawa Exp $’ : | character(*), parameter
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