A method of remotely sensing an atmosphere, comprising: projecting one of a first beam of first light and a second beam of second light into an atmosphere at a first point in time so as to provide for one of said first light and said second light to become scattered by said atmosphere as a corresponding one of scattered first light and scattered second light, wherein said first light comprises a first wavelength that provides for scattering said first light substantially only from said aerosols of said atmosphere, no more than an insubstantial portion of said first light is scattered by said molecules of said atmosphere, and wherein said second light comprises a second wavelength that provides for scattering said second light from either molecules or aerosols of said atmosphere,, wherein a distribution of wavelength of said one of said scattered first light and said scattered second light is responsive to at least one physical property of said atmosphere; receiving one of said scattered first light and said scattered second light scattered from said atmosphere; generating at least one first interference pattern responsive to said one of said scattered first light and said scattered second light, wherein said at least one first interference pattern is responsive to said distribution of wavelengths of said one of said scattered first light and said scattered second light; detecting said at least one physical property of said atmosphere from said at least one interference pattern, wherein at least one of a measure of signal-to-noise ratio and a measure of an aerosol-to-molecular ratio is detected from said at least one first interference pattern, wherein said aerosol-to-molecular ratio is a ratio of an amount of said scattered light of said beam of second fight by said aerosols in said atmosphere to an amount of said scattered light of said beam of second light scattered by said molecules in said atmosphere; wherein one of said beam of first light and said beam of second light is selected to be projected into said atmosphere at a second point in time after said first point in time, wherein the operation of selecting said one of said beam of first light and said beam of second light to be projected into said atmosphere at said second point in time is responsive to said at least one of said measure of signal-to-noise ratio and said measure of said aerosol-to-molecular ratio; and wherein said beam of first light is selected for projection into said atmosphere at said second point in time if said measure of signal-to-noise ratio or said aerosol-to-molecular ratio is greater than a threshold, and wherein said beam of second light is selected for projection into said atmosphere at said second point in time if said measure of signal-to-noise ratio or said aerosol-to-molecular ratio is less than said threshold. projecting one of a first beam of first light and a second beam of second light into an atmosphere at a first point in time so as to provide for one of said first light and said second light to become scattered by said atmosphere as a corresponding one of scattered first light and scattered second light, wherein said first light comprises a first wavelength that provides for scattering said first light substantially only from said aerosols of said atmosphere, no more than an insubstantial portion of said first light is scattered by said molecules of said atmosphere, and wherein said second light comprises a second wavelength that provides for scattering said second light from either molecules or aerosols of said atmosphere,, wherein a distribution of wavelength of said one of said scattered first light and said scattered second light is responsive to at least one physical property of said atmosphere; receiving one of said scattered first light and said scattered second light scattered from said atmosphere; generating at least one first interference pattern responsive to said one of said scattered first light and said scattered second light, wherein said at least one first interference pattern is responsive to said distribution of wavelengths of said one of said scattered first light and said scattered second light; detecting said at least one physical property of said atmosphere from said at least one interference pattern, wherein at least one of a measure of signal-to-noise ratio and a measure of an aerosol-to-molecular ratio is detected from said at least one first interference pattern, wherein said aerosol-to-molecular ratio is a ratio of an amount of said scattered light of said beam of second fight by said aerosols in said atmosphere to an amount of said scattered light of said beam of second light scattered by said molecules in said atmosphere; wherein one of said beam of first light and said beam of second light is selected to be projected into said atmosphere at a second point in time after said first point in time, wherein the operation of selecting said one of said beam of first light and said beam of second light to be projected into said atmosphere at said second point in time is responsive to said at least one of said measure of signal-to-noise ratio and said measure of said aerosol-to-molecular ratio; and wherein said beam of first light is selected for projection into said atmosphere at said second point in time if said measure of signal-to-noise ratio or said aerosol-to-molecular ratio is greater than a threshold, and wherein said beam of second light is selected for projection into said atmosphere at said second point in time if said measure of signal-to-noise ratio or said aerosol-to-molecular ratio is less than said threshold.