The authors thank Dr. Robert Curran of NASA Headquarters and Dr. Michael King of the EOS Project Science Office for their support. We also thank the NASA SIMBIOS Project for its financial support in establishing the site in Bahrain. The support of the Office of Naval Research and Naval Research Laboratory through programs PE-0602435N and PE-06-1153 is gratefully acknowledged. The authors would like to thank R. Fraser and R. Ferek for fruitful discussions of certain issues. The authors would also like to acknowledge the constructive criticism of anonymous reviewers.
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