HOME >> BIOLOGY >> NEWS
Urbanized Watersheds More Sensitive To Climate Change

SAN FRANCISCO, Calif. -- A regional investigation of stream flow in urbanized areas could help planners, hydrologists and climate modelers decipher future effects of increased precipitation and temperatures, according to a Penn State researcher.

"There have been a great many studies of stream flow, temperature and precipitation, but they have all been done on undeveloped watersheds that are minimally impacted by humans," says Dr. David De Walle, professor of forest hydrology. "No one, to our knowledge, has formally looked at urban watersheds in this way."

De Walle is trying to see how urbanization affects sensitivity of stream flow to climate change. Using population data from the U.S. Census Bureau, precipitation information from the National Weather Service and stream flow data from the U.S. Geological Survey, he is looking at four regions of the U.S. -- the Northeast, Southeast, Northwest and Southwest over the past 50 years.

In each area, De Walle is comparing five urban watersheds with five rural watersheds. Analysis of data for the northeastern sector is complete.

"It is obvious that stream flow increases with an increase in precipitation, but in the Northeast, we find that with a higher population and the same precipitation, stream flow increases more," De Walle told attendees at the American Geophysical Union Conference today (Dec. 19) in San Francisco.

The study looked at areas such as Saddle River, N.J., which in 1940 had 518 people per square mile and in 1980 had 2590 people per square mile. This area is 100 percent urbanized and had an increase of 70 percent in stream flow. Rock Creek, Md., which had 648 people per square mile in 1940 and 3238 per square mile in 1980, has a 43 percent increase in stream flow. The undeveloped area of Bushkill Creek in the Poconos had a population of 8 people per square mile in 1940 and in 1980 had 39 people per square mile.


'"/>

Contact: A'ndrea Elyse Messer
aem1@psu.edu
814-865-9481
Penn State
20-Dec-1996


Page: 1 2

Related biology news :

1. Research Reveals Link Between Development And Contamination In Urban Watersheds
2. New Fluorescence Technique For Ultra-Sensitive Enzyme Characterization Developed - Screening Catalytic Activity At The Single-Molecule Level
3. At Lifes Most Sensitive Stage, Embryos Cope With Stress
4. Climate change plus human pressure caused large mammal extinctions in late Pleistocene
5. Climate change could doom Alaskas tundra
6. Climate may play role in lynxs hunting ability
7. Climate change Qs & As
8. Climate change may threaten more than one million species with extinction
9. Climate linked to reproduction of right whales
10. Climate change linked to migratory bird decrease
11. Climate affects recent crop yield gains

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:4/30/2020)... ... 2020 , ... Ever a responsive and supportive partner to ... critical information to life science organizations as they navigate the ever-changing economic and ... the most up-to-date actionable guidance and information has been a keystone of our ...
(Date:4/26/2020)... ... April 23, 2020 , ... ... miniaturization, backed by FII Tech Growth managed by Fondo Italiano d’Investimento SGR, today ... market, for the development of Respira, a new non-invasive pulmonary ventilator created in ...
(Date:4/22/2020)... WAYNE, Pa. (PRWEB) , ... April 20, 2020 , ... ... Sciences and Healthcare firms of all sizes, announces the hiring of Michael Wlodarczyk as ... Wlodarczyk has been tasked to support and grow the company’s already strong presence across ...
Breaking Biology News(10 mins):
(Date:5/5/2020)... ... 04, 2020 , ... Red Nucleus, a leading provider of ... that Informa Training Partners, a life sciences training company acquired by Red Nucleus ... immediately. , “The name change solidifies a stronger presence for Red Nucleus in ...
(Date:4/26/2020)... ... April 23, 2020 , ... ... today, an online store providing applications and services for use on Microsoft Azure. ... business needs to sign up online for a built-for-purpose customer engagement capability to ...
(Date:4/22/2020)... ... April 21, 2020 , ... ... through COVID-19. Many clinical trial teams are working remotely and have paused patient ... to help researchers continue their research during this uncertain time by giving research ...
(Date:4/1/2020)... ... 2020 , ... Kinetic Vet, an animal health company, today ... solution. As a first-of-its-kind technology within the animal health industry, ArmourGuard RTU ... up to 90 days. , In addition to reducing the cross contamination that ...
Breaking Biology Technology:
Cached News: