Date: Thu, 05 Jul 2007 15:16:42 -0400 From: "Jim.Ray" Subject: [IGSMAIL-5618]: revision of IERS Conventions Chapter 9 In-reply-to: <46791C1F.7080207@noaa.gov> To: ivsmail@ivscc.gsfc.nasa.gov, igsmail@igscb.jpl.nasa.gov, slrmail@dgfi.badw-muenchen.de, dorismail@cls.fr Message-id: <468D439A.7020101@noaa.gov> Content-type: text/plain; charset="us-ascii" References: <46791C1F.7080207@noaa.gov> User-Agent: Thunderbird 1.5.0.12 (Windows/20070509) Sender: owner-igsmail Precedence: bulk ****************************************************************************** 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