Dataset Information

Global-scale seasonally resolved black carbon vertical profiles over the Pacific.

ABSTRACT: [1]?Black carbon (BC) aerosol loadings were measured during the High-performance Instrumented Airborne Platform for Environmental Research Pole-to-Pole Observations (HIPPO) campaign above the remote Pacific from 85°N to 67°S. Over 700 vertical profiles extending from near the surface to max ?14 km altitude were obtained with a single-particle soot photometer between early 2009 and mid-2011. The data provides a climatology of BC in the remote regions that reveals gradients of BC concentration reflecting global-scale transport and removal of pollution. BC is identified as a sensitive tracer of extratropical mixing into the lower tropical tropopause layer and trends toward surprisingly uniform loadings in the lower stratosphere of ?1 ng/kg. The climatology is compared to predictions from the AeroCom global model intercomparison initiative. The AeroCom model suite overestimates loads in the upper troposphere/lower stratosphere (?10×) more severely than at lower altitudes (?3×), with bias roughly independent of season or geographic location; these results indicate that it overestimates BC lifetime.

SUBMITTER: Schwarz JP

PROVIDER: S-EPMC4542199 | biostudies-literature | 2013 Oct

REPOSITORIES: biostudies-literature

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Global-scale seasonally resolved black carbon vertical profiles over the Pacific.

Schwarz J P JP Samset B H BH Perring A E AE Spackman J R JR Gao R S RS Stier P P Schulz M M Moore F L FL Ray Eric A EA Fahey D W DW

Geophysical research letters 20131023 20

[1] Black carbon (BC) aerosol loadings were measured during the High-performance Instrumented Airborne Platform for Environmental Research Pole-to-Pole Observations (HIPPO) campaign above the remote Pacific from 85°N to 67°S. Over 700 vertical profiles extending from near the surface to max ∼14 km altitude were obtained with a single-particle soot photometer between early 2009 and mid-2011. The data provides a climatology of BC in the remote regions that reveals gradients of BC concentration ref ...[more]

PMID: 26311916

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Dataset Information

Global-scale seasonally resolved black carbon vertical profiles over the Pacific.

Publications

Global-scale seasonally resolved black carbon vertical profiles over the Pacific.

Similar Datasets

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