1987 wet deposition temporal and spatial patterns in North America

Technical Report · Thu Mar 01 04:00:00 EST 1990

DOI:https://doi.org/10.2172/6997229· OSTI ID:6997229

Simpson, J C; Olsen, A R

The focus of this report is on North American wet deposition temporal patterns from 1979 to 1987 and spatial patterns for 1987. The report investigates the patterns of annual precipitation-weighted average concentration and annual deposition for nine ion species: hydrogen, sulfate, nitrate, ammonium, calcium, chloride, sodium, potassium, and magnesium. Data are from the Acid Deposition System (ADS) for the statistical reporting of North American deposition data which includes the National Atmospheric Deposition Program/National Trends Network (NADP/NTN), the MAP3S precipitation chemistry network, the Utility Acid Precipitation Study Program (UAPSP), the Canadian Precipitation Monitoring Network (CAPMoN), and the daily and 4-weekly Acidic Precipitation in Ontario Study (APIOS-D and APIOS-C). Mosaic maps, based on surface estimation using kriging, display concentration and deposition spatial patterns of pH, hydrogen, sulfate, nitrate, ammonium, and calcium ion species for 1987 annual, winter, and summer periods. The temporal pattern analyses use a subset of 39 sites over a 9-year (1979--1987) period and an expanded subset of 140 sites with greater spatial coverage over a 6-year (1982--1987) period. 68 refs., 15 figs., 15 tabs.

• Research Organization: Pacific Northwest Lab., Richland, WA (USA)
• Sponsoring Organization: EPA
• DOE Contract Number: AC06-76RL01830
• OSTI ID: 6997229
• Report Number(s): PNL-7208; ON: DE90010239
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
540120* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (1990-)
ACID RAIN
AMMONIA
ANNUAL VARIATIONS
ATMOSPHERIC PRECIPITATIONS
CALCIUM IONS
CHALCOGENIDES
CHARGED PARTICLES
CHLORINE IONS
DEPOSITION
DISTRIBUTION
ECOLOGICAL CONCENTRATION
HYDRIDES
HYDROGEN COMPOUNDS
HYDROGEN IONS
IONS
KRIGING
MAGNESIUM IONS
MATHEMATICS
MULTIVARIATE ANALYSIS
NITRATES
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
NITROGEN OXIDES
NORTH AMERICA
OXIDES
OXYGEN COMPOUNDS
PH VALUE
POLLUTION SOURCES
POTASSIUM IONS
PRECIPITATION SCAVENGING
RAIN
REGIONAL ANALYSIS
SEPARATION PROCESSES
SPATIAL DISTRIBUTION
STATISTICS
SULFATES
SULFUR COMPOUNDS
SULFUR OXIDES
VARIATIONS
WASHOUT