The underwater optical climate of Lake Texoma was measured at eleven fixed stations from August 1996 to August 1997. Secchi transparency and submarine photometry characterized seasonal and spatial values of secchi depth (SD), vertical attenuation coefficient (η''), and depth of euphotic zone (Zeu). Indices of Zeu:SD and η'' × SD were compared with universally applied values derived from inland and coastal waters. Turbidity explained 76% of the variation (p = 0.0001) of η'' among water quality parameters, including chlorophyll-α. Using a spectroradiometer, spectral signatures of chlorophyll-α and turbidity were located. Stations with low turbidity exhibited a distinct green reflectance peak around 590-610 nanometers, indicating presence of chlorophyll-α. Stations with high turbidity exhibited a reflectance peak shift towards the red spectrum, making it difficult to detect the chlorophyll signature. Derivative analysis of the reflectance signal at 590-610, and 720-780 nanometers allowed discrimination of this chlorophyll signature from those of turbidity (0.66 ≤ r^2 ≤ 0.99).

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Norman's Tigers were a super team without a superstar."

Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "Rev. Brian Kent, Methodist Minister"

Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "Charles Jones, City, Children's TV Producer."

Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "Beverly Hodges, Republican Candidate, Okla. County Commissioner, Dist. 1, Primary Election: Aug. 25, 1998"

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Nikki Pinnapureddy, 10, Charles Jones are featured in "R. U. KIDding," a syndicated children's television show Jones created."

Photograph used for a newspaper owned by the Oklahoma Publishing Company.

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Joe Ihle and an automated shaker bring pecans to the ground."

Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "The ill-fated "space ride" at Frontier City."

Photograph used for a story in the Daily Oklahoman newspaper.

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "The John Marshall defense couldn't keep Burks from hitting 6 3-point shots."

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Raising a flag pole is but one of the myriad of events that is challenging Boy Scouts this weekend at the state fairgrounds."

Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "Charles Jones, City, Children's Television Producer"

Photograph used for a newspaper owned by the Oklahoma Publishing Company.

Weekly newspaper from Mannford, Oklahoma that includes local, state, and national news along with advertising.

Weekly newspaper from Mannford, Oklahoma that includes local, state, and national news along with advertising.

Weekly newspaper from Mannford, Oklahoma that includes local, state, and national news along with advertising.

Weekly newspaper from Mannford, Oklahoma that includes local, state, and national news along with advertising.

Weekly newspaper from Mannford, Oklahoma that includes local, state, and national news along with advertising.

Weekly newspaper from Mannford, Oklahoma that includes local, state, and national news along with advertising.

Weekly newspaper from Mannford, Oklahoma that includes local, state, and national news along with advertising.

Weekly newspaper from Mannford, Oklahoma that includes local, state, and national news along with advertising.

Weekly newspaper from Mannford, Oklahoma that includes local, state, and national news along with advertising.

Weekly newspaper from Mannford, Oklahoma that includes local, state, and national news along with advertising.