Date: Sat, 31 May 2003 07:40:51 From: Richard Gross [Richard.Gross@jpl.nasa.gov] Dear Colleagues - The 4-year term of the IAG/IAPSO Joint Working Group on Geodetic Effects of Nontidal Oceanic Processes will come to an end at the IUGG meeting in Sapporo, Japan this summer. Tadahiro Sato has proposed that the JWG submit a resolution about the need for ocean-bottom pressure measurements, a draft of which is given below. Please send me your comments on this resolution and suggestions for additional resolutions by Friday, June 6. Best regards, Richard =========================================================================== Resolutions Resolution 1. Ocean-Bottom Pressure Measurements IAG/IAPSO Joint Working Group on Geodetic Effects of Nontidal Oceanic Processes Noting 1. that measurements over the oceans of the Earth^Òs time varying gravitational field will soon be available from the CHAMP and GRACE satellite missions, 2. that the gravitational field over the oceans and the pressure at the bottom of the oceans are both sensitive to changes in the distribution of mass within the oceans, and Recognizing 1. the importance of validating and calibrating satellite data using in situ measurements, Recommends 1. that measurement campaigns be conducted to determine sea-floor pressure variations using networks of ocean-bottom pressure recorders.