Lower Tombigbee River NEON - United States of America

DEIMS.iD

https://deims.org/41c43648-ca35-479b-8712-b70341c8c653

This record was created automatically using information from the:
Basic Information
Site Name
Lower Tombigbee River NEON
Short name
TOMB
Country
United States of America
Web Address
https://www.neonscience.org/field-sites/tomb
Site Manager
David Mitchell
Site Description
The Lower Tombigbee River (TOMB) is an aquatic field site located in the Coastal Floodplains of southwest Alabama in Choctaw County. It is within the Tombigbee River Basin and is colocated with the 17 km2 (4218 acre) Choctaw National Wildlife Refuge near the small town of Coffeeville, Alabama. The Lower Tombigbee River is the section of the river and watershed below where the Black Warrior River joins, and is managed by the U.S. Army Corps of Engineers. The Tombigbee watershed covers 47,0845 km2 (116 million acres) and spans most of western Alabama. TOMB is located in the southern extent of the watershed, 15 km (9 mi.) upriver from the Coffeeville lock and dam. TOMB is part of NEON's Ozarks Complex Domain (D08). D08 includes two other aquatic field sites and three terrestrial field sites. TOMB is colocated with the Lenoir Landing terrestrial site (LENO).
Relationships to other sites
This site groups with:
Last modified
2025-09-18 15:09:30

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General Characteristics and Status
Site Status
Operational
Year Established
2016
Observed properties
Affiliation and Network Specific Information
Affiliation
GERI✔This site is a verified "GERI" member.
NEON✔ (TOMB)This site is a verified "NEON" member.
Photos
TOMB
TOMB
TOMB middle of reach 2018
TOMB middle of reach 2018
Geographic
View in site map
Centroid/Representative Coordinates

Latitude: 31.8521 Longitude: -88.16107

Size
ca. 3570000.00ha
Elevation (average)
20.00msl
Elevation (min)
8.00msl
Elevation (max)
26.00msl
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Site information [.json]

Centroid/representative coordinates [.shp] [.kml] [.geojson]
GEO-BON Biome
Fresh water rivers
Biome
Mixed Forest
Ecosystem Type
Forest
Mixed Forest
Rivers
Large rivers
Urban
Air Temperature: Average Annual
18.10°C
Precipitation Annual
1386.00mm
Geology
The geology at TOMB is characterized by alluvial, coastal, and terrace deposits. The parent materials at the nearby colocated terrestrial site, LENO, are primarily Holocene-aged alluvial deposits, with the upstream source of the alluvium mainly Eocene-aged materials from the Wilcox and Claiborne groups. Coastal and terrace deposits are also found at LENO.
Vegetation
The vegetation around TOMB is dominated by closed-canopy pine-oak mixed forest, and also includes meadows and wetlands. Pine trees are typically found in higher, relatively less flooded areas, while oaks are distributed throughout the whole area, including the lower land with standing water. Some common species found in the canopy include a broad mix of cypress (Taxodium spp.), black gum (Nyssa sylvatica), shagbark hickory (Carya ovata), oaks, and green ash (Fraxinus pennsylvanica). Ground cover includes bamboo, grass, smilax and poison ivy (Toxicodendrom radicans).
Soils
Soils at TOMB are in the soil subgroup Vertic Epiaquepts, which are characterized as fine, mixed, active, acid, and thermic. The major soil series on the colocated NEON site LENO include Urbo, Mooreville, and Una, with minor extents of Riverview and Mantachie on higher positions.
Hydrology
TOMB is located within the Tombigbee River basin, which is encompassed within the Mobile River Basin. The 35656 km2 (8.8 million acre) basin straddles the border between Alabama and Mississippi. The Tombigbee River gathers the flow from four major rivers: the Buttahatchee, Noxubee, and Sucarnoochee from the west, and the Sipsey from the northeast. The main branch of the river flows from northeastern Mississippi to western Alabama, where it joins with the Black Warrior River and eventually drains into the Mobile River. The flow and transport of sediment in the Tombigbee River is generally regulated by locks and dams. The river is also impacted by coal-fired steam power plants, as well as urban and agricultural land use. The Tombigbee River Basin is subject to major precipitation pulses from tropical storms and hurricanes. These major events affect nutrient and organic matter flux, sediment transport, and biota along the gradient as they propagate downstream.
Site Type
Non-stationary land-based site
Design of Experimentation
mainly experimentation
Scale of Experimentation
catchment scale
Design of Observation
mainly observation
Scale of Observation
entire catchment
Permanent Power Supply
No
Accessible All Year
Yes
Permanent Operation
No