Laserfiche WebLink
<br />If records of 25 to 100 years are available, a weighted skew should be <br />calculated in which ,the station skew is given a weight of (N-25)/75 in <br />~hich N* is the length of record and the generalized skew is given a + <br />weight of 1.0 minus (N-25)/75. The equation is based on the assumption <br />that a generalized skew coefficient determined by the procedures described <br />would have an accuracy comparable to that computed from about 60 annual <br />peaks (10). <br /> <br />In the absence of detailed studies the generalized skew G can be read <br />from Plate I found in the flyleaf pocket of this guide. This map of gen- <br />eralized skew was developed for those users who prefer not to develop <br />their own generalized skew. It is expected that Plate I will be revised <br />as more data become available and more extensive studies are completed. <br /> <br />The recommended procedures for developing generalized skew coefficients <br />are described in the following paragraphs and outlined in Figure 1 for those <br />preferring not to use Plate 1. <br /> <br />+ <br />*If historic information is available, the historic record, H, as defined <br />in Appendix 6 should be used in this weighting procedure. + <br /> <br />11 <br />