How dry I am

Drought study underway by USGS, including look at North Idaho rivers

Print Article

In this August 27, 2015 photo, a hydrologic technician from the USGS Idaho Water Science Center measures streamflow in Lightning Creek at Clark Fork, ID. The USGS is collecting data at hundreds of sites on rivers and streams in six western states to document the 2015 drought. USGS scientists will analyze the data to identify which rivers and streams may be most vulnerable to future droughts.

COEUR d'ALENE - The Coeur d'Alene, St. Joe, Priest and Spokane rivers and some tributaries will be part of a major drought study by the U.S. Geological Survey.

Hydrologic technicians from the agency are taking measurements from hundreds of streams and rivers across the western U.S. to document and then study the record low flows.

The study could answer whether 2015 might serve as a model for how streams will respond to climate change, and which streams are most vulnerable to warm, dry weather.

The streams selected in North Idaho represent watersheds that derive their base summer flows from snowpack, and those in which base flows are sustained by underlying groundwater, said Timothy Merrick, a spokesman for the USGS in Boise.

"It was also important that sites had a historical record of data to which we can compare this year's data," Merrick said Wednesday. "So they are sites where we have streamgages, had streamgages in the past, or at least collected data for previous studies."

The streamflow and water-temperature measurements started in August and will continue through this month.

"This year's warmer, drier weather provides a preview of how future droughts may impact water resources in the study area," said Chris Konrad, USGS hydrologist and study project chief. "The goal is to provide information to resource managers to help understand differences in how streams respond to drought and plan for future drought impacts throughout the region."

The Press reported earlier this year that snowpack levels this past winter were extremely low compared with long-term averages. Warmer winter temperatures meant more rain than snow, and some places received less precipitation than normal.

With less spring and summer snowmelt at higher elevations, many western rivers and streams reached peak flows earlier than normal. They are now at or near historic low flows.

"This is a large-scale study including six states, nearly 500 streams and rivers and dozens of technicians," said Rich Ferrero, USGS Northwest regional director. "The streamflow data will be important for future drought planning and resource management decisions throughout the western United States."

USGS scientists will compare data with measurements from previous years to find out which rivers and streams depend on snowmelt and groundwater.

They will also learn how low flows and associated higher stream temperatures hurt fish and other aquatic species.

The data will be compiled and analyzed with a summary report of findings planned for publication late next year.

U.S. Geological Survey hydrographer Ryan Smith measures streamflow on the St. Joe River at Red Ives Ranger Station for a regional drought study.

Print Article

Read More Local News

Teen stable after being hit by pickup

July 23, 2019 at 5:00 am | Coeur d'Alene Press A 19-year-old Post Falls man who was struck by a vehicle while attempting to retrieve an item along U.S. 95 on Sunday was in stable condition Monday afternoon. Nicholas Eloe was struck around noon 5...

Comments

Read More

CHS tops region in keeping teachers

July 23, 2019 at 5:00 am | Coeur d'Alene Press By PRESS STAFF When teachers come to work at Coeur d’Alene High School, statistics show they’re likely to stay. Coeur d’Alene High School’s teacher retention rate rose to 94.3 percent last year,...

Comments

Read More

SHELTER from the STORM

July 23, 2019 at 5:00 am | Coeur d'Alene Press By BRIAN WALKER Staff Writer COEUR d'ALENE — A limited number of tickets remain on sale for the fundraiser at Duane and Lola Hagadone's expansive gardens at their home in Casco Bay on Lake Coeur ...

Comments

Read More

Outdoors: Conservation Success Stories: Gray wolf

July 23, 2019 at 5:00 am | Coeur d'Alene Press The gray wolf, a pack-hunting member of the dog family, is loved and hated by many, and the story of their conservation is a reminder of how important saving just one species can be to a host of othe...

Comments

Read More

Contact Us

(208) 664-8176
215 N. Second St
Coeur d'Alene, Idaho 83814

©2019 The Coeur d'Alene Press Terms of Use Privacy Policy
X
X