1 edition of Precipitation chemistry trends in the United States found in the catalog.
Precipitation chemistry trends in the United States
Includes bibliographical references (p. 101-103).
|Statement||principal investigators, James A. Lynch, Van C. Bowersox, Carol Simmons.|
|Contributions||Lynch, James A., Bowersox, Van C., Simmons, Carol L., National Atmospheric Deposition Program (U.S.)|
|The Physical Object|
|Pagination||x, 103 p. :|
|Number of Pages||103|
US Dept of Commerce National Oceanic and Atmospheric Administration National Weather Service Hastings, NE North Osborne Drive West Hastings, NE California is the largest and most diverse agricultural state in the United States of America, w farms comprising million ha of pasture and rangeland and million ha of irrigated cropland that generate an overall agricultural production value of $ billion .The state produces over a third of the country’s vegetables and two-thirds of its fruits and nuts on nearly %.
In , the United States saw some inches of precipitation. The main forms of precipitation include hail, drizzle, rain, sleet and snow. This year was the second wettest on record. Chemical precipitation, formation of a separable solid substance from a solution, either by converting the substance into an insoluble form or by changing the composition of the solvent to diminish the solubility of the substance in it. The distinction between precipitation and crystallization.
Printing in the US industry trends () Printing in the US industry outlook () poll Average industry growth x.x lock Purchase this report or a membership to unlock the average company profit margin for this industry. Also, very heavy precipitation events are clearly on the rise in the contiguous states, even in drier regions. The one-line summary: The wet are getting wetter, the dry are getting drier, and.
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Significant (p trends averaging - Eteq Precipitation chemistry trends in the United States book ` 1 are evident at 35 sites (%), although failure of the Shapiro-Wilk test at 16 of these Precipitation chemistry in the United States sites may have affected the significance of the test by: G.
Stensland, A comparison of precipitation chemistry data at Champaign, Illinois in and inin Chapter 3 of the 16th Prog. Rept. on Cont. EYS Cited by: 6. Get this from a library. Trends in precipitation chemistry in the United States, an analysis of the effects in of Phase I of the Clean Air Act Amendments ofTitle IV.
[James A Lynch; Van C Bowersox; Jeffrey W Grimm; National Acid Precipitation. Get this from a library. Trends in precipitation and stream-water chemistry in the northeastern United States, water years [David W Clow; M Alisa Mast; Geological Survey (U.S.)].
Precipitation Chemistry Trends in the United States: Summary Report Principal Investigators James A. Lynch Professor of Forest Hydrology Penn State University School of Forest Resources University Park, PA Van C.
Bowersox Director Central Analytical Laboratory Illinois State Water Survey Champaign, IL Carol Simmons. Decreasing trends are also evident at 28 sites for Na + and at 35 sites for K +. NH 4 + concentrations exhibit very little change over this year period. The widespread decline in base cations, particularly Ca 2+ and Mg 2+, appears to have offset the effects that decreasing SO 4 2− concentrations should have on free acidity in precipitation.
1 Introduction. The southwestern United States is experiencing rapid population growth, land-use change, drought, and variability in precipitation and water availability (Woodhouse et al., ; Cayan et al., ; Seager and Vecchi, ; Harpold et al., ), which both affect and are affected by the region's aerosol particles and precipitation.
Ongoing changes in the Southwest's climate. Trends in Precipitation Chemistry in the United States, An Analysis of the Effects in of Phase I of the Clean Air Act Amendments ofTitle IV By James A.
Lynch (Pennsylvania State University), Van C. Bowersox (Illinois State Water Survey), and Jeffrey W. Grimm (Pennsylvania State University), Principal Investigators. Thirteen years () of precipitation chemistry data from 58 National Atmospheric Deposition Program/National Trends Network (NADP/NTN) sites are examined for trends using a general linear least squares model.
SO 4 2- concentrations are decreasing throughout the United States; significant (p trends are evident at 42 of the 58 sites included in this analysis and the average. Nilles M, Conley B () Changes in the chemistry of precipitation in the United States, – Water Air Soil Pollut – CrossRef Google Scholar Nilles M, Gordon J, Schroder L () The precision of wet atmospheric deposition data from national atmospheric program/national trends network sites determined with collocated samplers.
Impacts from climate change are happening now. These impacts extend well beyond an increase in temperature, affecting ecosystems and communities in the United States and around the world. Things that we depend upon and value — water, energy, transportation, wildlife, agriculture, ecosystems, and human health — are experiencing the effects.
Trends in Precipitation Chemistry in the United States, An Analysis of the Effects in of Phase I of the Clean Air Act Amendments ofTitle IV Open-File Report Principal Investigators. James A. Lynch, Ph.D. Pennsylvania State University Van. One of the primary objectives of the National Atmospheric Deposition Program/National Trends Network (NADP/NTN) is to determine geographical patterns and temporal trends in precipitation chemistry in the United States.
To meet this objective, the NADP/NTN established and maintains nearly monitoring stations throughout the United States. Trends in precipitation and stream-water chemistry during water years were examined at eight precipitation monitoring sites and five nearby streams operated by the U.S.
Geological Survey in the northeastern United States. The statistical analyses indicate the following: 1)Stream-water sulfate (SO4) concentrations decreased at seven of eight precipitation monitoring sites and in each of.
On average, SO declined 35% over the period with downward SO trends being most pronounced in the northeastern United States. In contrast, no consistent trends in NO3- concentrations were observed in precipitation in any major region of the United States. Although the majority of sites did not exhibit significant trends in NH4.
Map of precipitation pH in the continental United States in Encyclopædia Britannica, Inc. As a result of actions and agreements such as those described above, acid deposition in both Europe and eastern North America has been significantly reduced.
The longest continuous record of precipitation chemistry in North America is from the Hubbard Brook Experimental Forest in New Hampshire, U.S. The National Atmospheric Deposition Program-National Trends Network (NADP-NTN) has measured the concentrations of acids, nutrients, and base cations in precipitation for more than two decades in the U.S.
These trends in precipitation chemistry reflect changes in the chemical climate of the US. National trends for Mean Temperature, Maximum Temperature, Minimum Temperature, and Precipitation for each month and season can be accessed using the form below.
Maps are available that depict trends for the most recent complete year period and. Spatial and temporal trends of precipitation chemistry in the United States, Christopher M.B. Lehmann, Van C. Bowersox, Susan M.
Larson Illinois State Water Survey. The regional patterns and time trends of free acidity and inorganic chemical constituents in precipitation were investigated using a new archive of daily precipitation chemistry measurements for the eastern United States.
This archive contains data from three networks during the period through and consists of approximately 10 precipitation samples. Fingerprint Dive into the research topics of 'Aerosol and precipitation chemistry in the southwestern United States: Spatiotemporal trends and interrelationships'.
Together they form a unique fingerprint. Aerosol and precipitation chemistry in the southwestern United States: spatiotemporal trends and interrelationships. Sorooshian A(1), Shingler T(2), Harpold A(3), Feagles CW(2), Meixner T(4), Brooks PD(4).We participate in the National Atmospheric Deposition Program (NADP), which provides long term spatial and temporal trends in precipitation chemistry in the United States.
Data are available from samples collected at two locations in Nebraska: 1) our station (Site NE15) located at the Agrometeorology lab at University of Nebraska Agricultural.