Question[s] email#1 ----------- 1) Could you post the Project #9 case study to help us calibrate our conversion of the 1000 hPa GRVT into a 1000 hPa geopotential height tendency at the surface cyclone center? 2) Are we given the initial position of the 1000 hPa surface cyclone center or must determine its position using the 1000 hPa maps at the initial time? Answer[s] to email#1 ------------ 1) The 'Project #9' is a typo and should read 'Project #7'. You can use the Pacific cyclone studied in Project #7 to figure out how much the 1000 hPa height fell at the future cyclone position between the earlier and later time over a 6-h time period and calibrate the dZ/dt with the dGRV/dt found at the future cyclone position between the earlier and later time over a 6-h time period. If you collect data points over three six-hour periods, you may be able to create a polynomial fit relating the two trends. See email inquiry #1 for related information. 2) You must determine the initial position of the 1000 hPa surface cyclone center using the 1000 hPa maps at the initial time. However, it is located VERY close to 30 degN, 132.5 degE at the initial time. ---> There is no limit to the number of questions asked on the final project...the only limit is that you have until noon EST on Wednesday, November 27 [today] to ask questions.