Contents of an ASCII monthly means (AMM) file Version 1.0 1 Sep 92 Each file contains the monthly mean values of streamflow in cubic feet per second (CFS) for one station. The filename is nnnnnnnn.AMM where nnnnnnnn is the station number. There is one record (line) for each water year for which there is acceptable data. The file is sorted on water year (columns 10-13). Columns Format Contents 1-8 I8 Station number - the 8 digit station number uniquely identifying the station. 9 1X Blank. 10-13 I4 Water year. A water year starts in October of the calendar year one year less than the water year and ends in September of the calendar year the same as the water year. For example, water year 1980 covers the period October 1, 1979 through September 30, 1980. 14-16 3X Blank. 17-24 F8.x October - Mean streamflow in CFS for October. 25-32 F8.x November - Mean streamflow in CFS for November. 33-40 F8.x December - Mean streamflow in CFS for December. 41-48 F8.x January - Mean streamflow in CFS for January. 49-56 F8.x February - Mean streamflow in CFS for February. 57-64 F8.x March - Mean streamflow in CFS for March. 65-72 F8.x April - Mean streamflow in CFS for April. 73-80 F8.x May - Mean streamflow in CFS for May. 81-88 F8.x June - Mean streamflow in CFS for June. 89-96 F8.x July - Mean streamflow in CFS for July. 97-104 F8.x August - Mean streamflow in CFS for August. 105-112 F8.x September - Mean streamflow in CFS for September. Note: The number of decimal places for the streamflow values is variable depending on the magnitude of the streamflow. The field is always eight columns wide. The value is given to three decimal places for flow less than 0.1 CFS, two decimal places for flow of 0.1 CFS or greater but less than 10 CFS, one decimal place for flow of 10 CFS or greater but less than 100 CFS, and no decimal places for flow of 100 CFS or greater. There is a decimal point only if there are decimal places. Conversion factor: Multiply cubic feet per second (CFS) by 0.02832 to obtain cubic meters per second. Format descriptions: In an integer field n columns wide. F8.x a real (float) field 8 columns wide. nX a blank field n columns wide.