User's Manual for TMY2s

Table of Contents

Appendix A   Procedures for Developing TMY2s


Key to Present Weather Elements

Appendix B provides the key for the present weather elements included in the TMY2 format. The TMY2s use a ten-digit number for present weather, whereas the older TMYs used an eight-digit number. Also, the weather occurrence values for the TMY2s have different meanings from those for the TMYs. For example, TMY2s use a nine to indicate "none," whereas TMYs use a zero to indicate "none."

Table B-1

Appendix C   Unit Conversion Factors

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