Physical Scientist
Email:
sjstocks@usgs.gov
Office Phone:
601-933-2956
Fax:
601-933-2901
ORCID:
0000-0003-1711-3071
Location
308 S. Airport Road
Jackson
, MS
39208-6649
US
|
For about 10 years, the U.S. Geological Survey (USGS) has monitored water quality and streamflow in three agricultural drainage ditches in an effort to evaluate the influence of best management practices on water quality. These ditches are small tributaries to oxbow lakes located in the Mississippi Alluvial Plain of northwestern Mississippi--two sites (LWSR and LWT2) drain to Lake Washington and one site (BLT1) drains to Bee Lake. Streamflow was intermittent at these sites and the ditches were dry much of the year. When streamflow was present, flows were measured on 15-minute intervals and water-quality samples were collected over the course of the flow event using an automated sampler. These datasets were aggregated...
Categories: Data;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Lower Mississippi - Yazoo,
USGS Science Data Catalog (SDC),
Water Quality,
agriculture,
best management practices, All tags...
conservation practices,
nutrient content (water),
runoff,
sediment transport, Fewer tags
|
Surface and water-borne geophysical methods can provide information for the characterization of the subsurface structure of the earth for aquifer investigations. Floating and towed transient electromagnetic (FloaTEM and tTEM) surveys provide resistivity soundings of the subsurface, which can be related to lithology and hydrogeology. In the TEM method, a primary electrical current is cycled through a wire in a transmitter loop (Tx), which in turn produces a static primary magnetic field. When the current in the TX loop is abruptly terminated, secondary electrical currents are induced in the earth that move downward and outward decaying with time. The decay of the secondary electrical field is controlled by the subsurface...
Categories: Data;
Tags: Geophysics,
Greenwood,
Hydrology,
Leflore County,
MRVA, All tags...
Mississippi,
Mississippi Alluvial Plain,
Mississippi River Valley Alluvial aquifer,
Shellmound,
Tallahatchie River,
USGS Science Data Catalog (SDC),
Water Resources,
electromagnetic surveying,
electromagnetics,
geophysics,
geoscientificInformation,
geospatial datasets,
groundwater,
hydrogeology,
oceans,
resistivity,
transient electromagnetics,
water resources,
water-borne, Fewer tags
|
This data release has three components for each of the eight surveys that were conducted in 2018: 1) a geospatial dataset of the processed data; 2) tabular data of the processed waterborne resistivity profiling data and associated water-quality data; 3) tabular data of the raw waterborne resistivity data and associated water-quality data. In addition to the newly collected data from 2018, the waterborne resistivity data from 2016 (Miller and others, 2016) is included and has been re-processed to be consistent with the processing steps currently utilized and described herein. In fresh water aquifers, the geoelectric resistivity of earth materials commonly has a positive correlation with hydraulic conductivity (Faye...
Categories: Data;
Types: ArcGIS REST Map Service,
ArcGIS Service Definition,
Downloadable,
Map Service;
Tags: Apparent resistivity,
Arkansas,
Black River,
Cache River,
Continuous resistivity profiling, All tags...
Eutah Bend,
Geophysics,
Mississippi,
Mississippi Alluvial Plain,
Missouri,
Quiver River,
Reciprocal Schlumberger,
Resistivity,
Roebuck Lake,
Sky Lake,
Streambed hydraulic conductivity,
Sunflower River,
Tallahatchie River,
USGS Science Data Catalog (SDC),
Water Resources,
White River,
inlandWaters, Fewer tags
|
|
