From jim.ray at noaa.gov Thu Jul 5 12:16:42 2007
From: jim.ray at noaa.gov (Jim.Ray)
Date: Thu, 05 Jul 2007 15:16:42 -0400
Subject: [IGSMAIL-5618]: revision of IERS Conventions Chapter 9
In-Reply-To: <46791C1F.7080207@noaa.gov>
References: <46791C1F.7080207@noaa.gov>
Message-ID: <468D439A.7020101@noaa.gov>
******************************************************************************
IGS Electronic Mail 05 Jul 12:16:43 PDT 2007 Message Number 5618
******************************************************************************
Author: Jim Ray (IERS Conventions Advisory Board)
Please note that a new version of IERS Chapter 9 on tropospheric
models was posted on 28 June 2007. The text was completely
rewritten, thanks mainly to J. Boehm, G. Hulley, A. Niell, and E. Pavlis
In addition, a new set of subroutines is available:
* FCUL_a.f -
Function to compute the global total FCULa mapping
function for SLR analyses, dependent on latitude, height, and surface
temperature. Provided by V. Mendes.
* FCUL_b.f -
Function to compute the global total FCULb mapping
function for SLR analyses, dependent on latitude, height and day of year.
Provided by V. Mendes.
* fcul_ztd_hPa.f
- Subroutine
to compute the Mendes-Pavlis zenith total
delay, for optical wavelengths, valid for infrared to ultraviolet.
Provided by
V. Mendes.
* gmf.f - Subroutine
to compute the Global Mapping Functions, GMF,
for radio techniques. Provided by J. Boehm.
* vmf1.f - Subroutine
to compute the Vienna Mapping Functions 1,
VMF1, to be used with "a" coefficients computed for a given site.
Provided by J. Boehm.
* vmf1_ht.f -
Subroutine to compute the Vienna Mapping Functions 1,
VMF1, with height corrections, to be used with "a" coefficients computed
for a grid. Provided by J. Boehm.
* gpt.f - Subroutine
to compute the Global Pressure and Temperature,
based on Spherical Harmonics up to degree and order 9. Provided by
J. Boehm.
Please refer to the IERS Conventions update website:
http://tai.bipm.org/iers/convupdt/convupdt_c9.html