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Underwater Optical Properties of Lake Texoma (Oklahoma-Texas) Using Secchi Disk, Submarine Photometer, and High-Resolution Spectroscopy (open access)

Underwater Optical Properties of Lake Texoma (Oklahoma-Texas) Using Secchi Disk, Submarine Photometer, and High-Resolution Spectroscopy

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).
Date: August 1998
Creator: Rolbiecki, David A. (David Alan)
Object Type: Thesis or Dissertation
System: The UNT Digital Library
[Clipping photocopy: She Has Her Wings] (open access)

[Clipping photocopy: She Has Her Wings]

Photocopy of a newspaper clipping about an article about a nun named Sister Teresa, a WASP member, as well as other members. The article includes both color and black and white photographs, as well as details about the women's personal experiences flying for WASP.
Date: October 10, 1999
Creator: O'Brien, Stephen J.
Object Type: Clipping
System: The Portal to Texas History
[Clipping photocopy: She Has Her Wings] (open access)

[Clipping photocopy: She Has Her Wings]

Photocopy of a newspaper clipping about an article about a nun named Sister Teresa, a WASP member, as well as other members. The article includes both color and black and white photographs, as well as details about the women's personal experiences flying for WASP.
Date: October 10, 1999
Creator: O'Brien, Stephen J.
Object Type: Clipping
System: The Portal to Texas History
[Clipping: WASP history] (open access)

[Clipping: WASP history]

Newspaper clippings of an article about the disparities between the treatment and requirements of WASP members and men serving in the US Air Force. On the back of the clippings are brief articles and letters, as well as an advertisement for Kmart.
Date: [1991..]
Creator: Weser, Marcia Goren
Object Type: Clipping
System: The Portal to Texas History
[UNT UPDATE clipping, Vol. 22 No. 6, November 25, 1991] (open access)

[UNT UPDATE clipping, Vol. 22 No. 6, November 25, 1991]

A clipping from the UNT UPDATE publication covering NTIEVA's Nancy Cason and her work on television workshops, a renewal session hosted by Cason, Cassandra Broadus, Dr. D. Jack Davis, and Dr. R. William McCarter, the participation in TCA's annual conference, and McCarter serving as a visual arts juror at a festival.
Date: November 25, 1991
Creator: Spencer, Peggy
Object Type: Clipping
System: The UNT Digital Library
Fighting Men of the Indian Wars: A Biographical Encyclopedia of the Mountain Men, Soldiers, Cowboys, and Pioneers Who Took Up Arms During America's Westward Expansion (open access)

Fighting Men of the Indian Wars: A Biographical Encyclopedia of the Mountain Men, Soldiers, Cowboys, and Pioneers Who Took Up Arms During America's Westward Expansion

This book "is a compendium of America's Indian Wars and the mountain men, soldiers, cowboys and pioneers who took part in them" (dust-jacket). It includes information about all the major American Indian battles, the lives of notable men who fought in the battles, and the combat techniques employed. The index begins on page 247.
Date: 1991
Creator: O'Neal, Bill
Object Type: Book
System: The Portal to Texas History

1990 Census County Block Map (Recreated): Cooke County, Index

Index map for Cooke County, Texas showing the distribution of census blocks and smaller inset areas for which the U.S. Census Bureau collected data. The plotted map scale is 1:88,451.
Date: 1990
Creator: United States. Bureau of the Census.
Object Type: Map
System: The Portal to Texas History

1990 Census County Block Map (Recreated): Hardeman County, Block 2

Parent map for Hardeman County, Texas showing the area of one geographic block for which the U.S. Census Bureau collected data. The plotted map scale is 1:27,500.
Date: 1990
Creator: United States. Bureau of the Census.
Object Type: Map
System: The Portal to Texas History

1990 Census County Block Map (Recreated): Wichita County, Block 4

Parent map for Wichita County, Texas showing the area of one geographic block for which the U.S. Census Bureau collected data. The plotted map scale is 1:12,500.
Date: 1990
Creator: United States. Bureau of the Census.
Object Type: Map
System: The Portal to Texas History

1990 Census County Block Map (Recreated): Montague County, Block 1

Parent map for Montague County, Texas showing the area of one geographic block for which the U.S. Census Bureau collected data. The plotted map scale is 1:17,500.
Date: 1990
Creator: United States. Bureau of the Census.
Object Type: Map
System: The Portal to Texas History

1990 Census County Block Map (Recreated): Clay County, Block 6

Parent map for Clay County, Texas showing the area of one geographic block for which the U.S. Census Bureau collected data. The plotted map scale is 1:17,500.
Date: 1990
Creator: United States. Bureau of the Census.
Object Type: Map
System: The Portal to Texas History

1990 Census County Block Map (Recreated): Clay County, Block 1

Parent map for Clay County, Texas showing the area of one geographic block for which the U.S. Census Bureau collected data. The plotted map scale is 1:17,500.
Date: 1990
Creator: United States. Bureau of the Census.
Object Type: Map
System: The Portal to Texas History

1990 Census County Block Map (Recreated): Clay County, Index

Index map for Clay County, Texas showing the distribution of census blocks and smaller inset areas for which the U.S. Census Bureau collected data. The plotted map scale is 1:106,132.
Date: 1990
Creator: United States. Bureau of the Census.
Object Type: Map
System: The Portal to Texas History

1990 Census County Block Map (Recreated): Dallam County, Block 3

Parent map for Dallam County, Texas showing the area of one geographic block for which the U.S. Census Bureau collected data. The plotted map scale is 1:40,000.
Date: 1990
Creator: United States. Bureau of the Census.
Object Type: Map
System: The Portal to Texas History

1990 Census County Block Map (Recreated): Ochiltree County, Block 2

Parent map for Ochiltree County, Texas showing the area of one geographic block for which the U.S. Census Bureau collected data. The plotted map scale is 1:24,000.
Date: 1990
Creator: United States. Bureau of the Census.
Object Type: Map
System: The Portal to Texas History

1990 Census County Block Map (Recreated): Lamar County, Block 2

Parent map for Lamar County, Texas showing the area of one geographic block for which the U.S. Census Bureau collected data. The plotted map scale is 1:17,500.
Date: 1990
Creator: United States. Bureau of the Census.
Object Type: Map
System: The Portal to Texas History

1990 Census County Block Map (Recreated): Bowie County, Block 2

Parent map for Bowie County, Texas showing the area of one geographic block for which the U.S. Census Bureau collected data. The plotted map scale is 1:15,000.
Date: 1990
Creator: United States. Bureau of the Census.
Object Type: Map
System: The Portal to Texas History

1990 Census County Block Map (Recreated): Sherman County, Block 2

Parent map for Sherman County, Texas showing the area of one geographic block for which the U.S. Census Bureau collected data. The plotted map scale is 1:40,000.
Date: 1990
Creator: United States. Bureau of the Census.
Object Type: Map
System: The Portal to Texas History

1990 Census County Block Map (Recreated): Hansford County, Block 1

Parent map for Hansford County, Texas showing the area of one geographic block for which the U.S. Census Bureau collected data. The plotted map scale is 1:24,000.
Date: 1990
Creator: United States. Bureau of the Census.
Object Type: Map
System: The Portal to Texas History

1990 Census County Block Map (Recreated): Clay County, Block 3

Parent map for Clay County, Texas showing the area of one geographic block for which the U.S. Census Bureau collected data. The plotted map scale is 1:17,500.
Date: 1990
Creator: United States. Bureau of the Census.
Object Type: Map
System: The Portal to Texas History

1990 Census County Block Map (Recreated): Hemphill County, Index

Index map for Hemphill County, Texas showing the distribution of census blocks and smaller inset areas for which the U.S. Census Bureau collected data. The plotted map scale is 1:78,668.
Date: 1990
Creator: United States. Bureau of the Census.
Object Type: Map
System: The Portal to Texas History

1990 Census County Block Map (Recreated): Dallam County, Block 2

Parent map for Dallam County, Texas showing the area of one geographic block for which the U.S. Census Bureau collected data. The plotted map scale is 1:40,000.
Date: 1990
Creator: United States. Bureau of the Census.
Object Type: Map
System: The Portal to Texas History

1990 Census County Block Map (Recreated): Montague County, Index

Index map for Montague County, Texas showing the distribution of census blocks and smaller inset areas for which the U.S. Census Bureau collected data. The plotted map scale is 1:88,452.
Date: 1990
Creator: United States. Bureau of the Census.
Object Type: Map
System: The Portal to Texas History

1990 Census County Block Map (Recreated): Grayson County, Block 4

Parent map for Grayson County, Texas showing the area of one geographic block for which the U.S. Census Bureau collected data. The plotted map scale is 1:12,500.
Date: 1990
Creator: United States. Bureau of the Census.
Object Type: Map
System: The Portal to Texas History