UA SWE/SNWD Reader for LVT

lvt/configs/lvt.config.master

@@ -220,6 +220,7 @@ LVT output methodology:                 "2d gridspace"
 #latex: ``USCRN soil moisture'' & USCRN soil moisture data\\
 #latex: ``SMAP soil moistu'' & SMAP soil moisture data\\
 #latex: ``SMAP vegetation water content'' & SMAP vegetation water content\\
+#latex: ``UA SNOW'' & University of Arizona SWE/Snow depth data\\
 #latex: ``SMAP L3 Tb'' & SMAP L3 brightness temperature\\  
 #latex: \end{tabular}
 #latex: 
@@ -2860,6 +2861,20 @@ WG SWRC observation directory:
 WG SWRC station list file:
 #latex: END_CONFIG
 
+#latex: BEGIN_DESCRIPTION
+#latex: \subsubsection{UA SNOW observations}
+#latex: END_DESCRIPTION
+
+#latex: BEGIN_DESCRIPTION
+#latex: \var{UA SNOW observation directory:}  specifies the location of  
+#latex: the University of Arizona SWE data
+#latex:
+#latex: END_DESCRIPTION
+
+#latex: BEGIN_CONFIG
+UA SNOW observation directory:             ./UA_SNOW
+#latex: END_CONFIG
+
 #latex: BEGIN_DESCRIPTION
 #latex: \subsection{OptUE processing options} \label{ssec:optue}
 #latex: This section of the config file specifies the details of the 

lvt/datastreams/UA_SNOW/UASNOW_obsMod.F90

@@ -0,0 +1,158 @@
+!-----------------------BEGIN NOTICE -- DO NOT EDIT-----------------------------
+! NASA GSFC Land surface Verification Toolkit (LVT) V1.0
+!-------------------------END NOTICE -- DO NOT EDIT-----------------------------
+!BOP
+!
+! !MODULE: UASNOW_obsMod
+! \label(UASNOW_obsMod)
+!
+! !INTERFACE:
+module UASNOW_obsMod
+!
+! !USES:
+  use ESMF
+
+  implicit none
+  PRIVATE
+!
+! !INPUT PARAMETERS:
+!
+! !OUTPUT PARAMETERS:
+!
+! !DESCRIPTION:
+!  This module handles the observation plugin for the
+!  University of Arizona (UA) SWE/Snow Depth data v01.
+!  The UA SNOW data is provided in the NAD 1983 grid
+!  with ~4-km resolution. The domain extents are from
+!  approximately (24N, -125W) to (50N, -66.5W).
+!  The data entries are 16-bit signed integers.
+!
+!  Temporal coverage is from 1 Oct 1981 - 30 Sep 2017.
+!  The data is organized by Water Years.
+!
+! !FILES USED:
+!
+! !REVISION HISTORY:
+!  28 May 2019: Rhae Sung Kim, Initial Specification!
+!  19 Jun 2019: David Mocko, Set valid time of data to 12Z
+!
+!EOP
+
+  PUBLIC :: UASNOW_obsinit
+  PUBLIC :: uasnowobs
+
+  type, public :: uasnowobsdec
+     character*100        :: odir
+     integer              :: nc, nr
+     integer              :: yr
+     type(ESMF_Time)         :: startTime
+     type(ESMF_TimeInterval) :: timeStep
+
+     real,    allocatable     :: rlat(:)
+     real,    allocatable     :: rlon(:)
+     integer, allocatable     :: n11(:)
+     integer, allocatable     :: n12(:)
+     integer, allocatable     :: n21(:)
+     integer, allocatable     :: n22(:)
+     real,    allocatable     :: w11(:)
+     real,    allocatable     :: w12(:)
+     real,    allocatable     :: w21(:)
+     real,    allocatable     :: w22(:)
+     real,    allocatable     :: swe(:,:)
+     real,    allocatable     :: snwd(:,:)
+  end type uasnowobsdec
+
+  type(uasnowobsdec), allocatable :: uasnowobs(:)
+
+contains
+
+!BOP
+!
+! !ROUTINE: UASNOW_obsinit
+! \label{UASNOW_obsinit}
+!
+! !INTERFACE:
+  subroutine UASNOW_obsinit(i)
+!
+! !USES:
+    use ESMF
+    use LVT_coreMod
+    use LVT_histDataMod
+    use LVT_timeMgrMod
+    use LVT_logMod
+
+    implicit none
+!
+! !INPUT PARAMETERS:
+    integer,   intent(IN) :: i
+!
+! !OUTPUT PARAMETERS:
+!
+! !DESCRIPTION:
+! This subroutine initializes and sets up the data structures
+! required for reading UA SNOW data.
+!
+! !FILES USED:
+!
+!EOP
+
+    real               :: gridDesci(50)
+    integer            :: status
+
+    if(.not.allocated(uasnowobs)) then
+       allocate(uasnowobs(LVT_rc%nDataStreams))
+    endif
+
+    call ESMF_ConfigGetAttribute(LVT_config, uasnowobs(i)%odir, &
+         label='UA SNOW observation directory:',rc=status)
+    call LVT_verify(status, 'UA SNOW observation directory: not defined')
+
+    gridDesci = 0
+    call LVT_update_timestep(LVT_rc, 3600)
+
+    allocate(uasnowobs(i)%rlat(LVT_rc%lnc*LVT_rc%lnr))
+    allocate(uasnowobs(i)%rlon(LVT_rc%lnc*LVT_rc%lnr))
+
+    allocate(uasnowobs(i)%w11(LVT_rc%lnc*LVT_rc%lnr))
+    allocate(uasnowobs(i)%w12(LVT_rc%lnc*LVT_rc%lnr))
+    allocate(uasnowobs(i)%w21(LVT_rc%lnc*LVT_rc%lnr))
+    allocate(uasnowobs(i)%w22(LVT_rc%lnc*LVT_rc%lnr))
+
+    allocate(uasnowobs(i)%n11(LVT_rc%lnc*LVT_rc%lnr))
+    allocate(uasnowobs(i)%n12(LVT_rc%lnc*LVT_rc%lnr))
+    allocate(uasnowobs(i)%n21(LVT_rc%lnc*LVT_rc%lnr))
+    allocate(uasnowobs(i)%n22(LVT_rc%lnc*LVT_rc%lnr))
+
+    uasnowobs(i)%nc = 1405
+    uasnowobs(i)%nr = 621
+
+    gridDesci(1) = 0
+    gridDesci(2) = 1405
+    gridDesci(3) = 621
+    gridDesci(4) = 24.0833340
+    gridDesci(5) = -125.0000
+    gridDesci(6) = 128
+    gridDesci(7) = 49.9166679
+    gridDesci(8) = -66.5000
+    gridDesci(9) = 0.04166662697178698
+    gridDesci(10) = 0.04166662697178698
+    gridDesci(20) = 64
+
+    call bilinear_interp_input(gridDesci,LVT_rc%gridDesc,&
+         LVT_rc%lnc*LVT_rc%lnr, &
+         uasnowobs(i)%rlat,  uasnowobs(i)%rlon, &
+         uasnowobs(i)%n11, uasnowobs(i)%n12,   &
+         uasnowobs(i)%n21, uasnowobs(i)%n22,   &
+         uasnowobs(i)%w11, uasnowobs(i)%w12,   &
+         uasnowobs(i)%w21, uasnowobs(i)%w22)
+
+    allocate(uasnowobs(i)%swe(uasnowobs(i)%nc,uasnowobs(i)%nr))
+    allocate(uasnowobs(i)%snwd(uasnowobs(i)%nc,uasnowobs(i)%nr))
+
+    call ESMF_TimeIntervalSet(uasnowobs(i)%timestep, s=86400, rc=status)
+    call LVT_verify(status, 'error in setting timestep (uasnowobs)')
+
+  end subroutine UASNOW_obsinit
+
+
+end module UASNOW_obsMod