Geophysical Research Letters (GEOPHYS RES LETT)

Publisher: American Geophysical Union, American Geophysical Union

Journal description

Geophysical Research Letters publishes short, concise research letters that present scientific advances that are likely to have immediate influence on the research of other investigators. GRL letters can focus on a specific discipline or apply broadly to the geophysical science community.

Current impact factor: 4.46

Impact Factor Rankings

2015 Impact Factor Available summer 2015
2013 / 2014 Impact Factor 4.456
2012 Impact Factor 3.982
2011 Impact Factor 3.792
2010 Impact Factor 3.505
2009 Impact Factor 3.204
2008 Impact Factor 2.959
2007 Impact Factor 2.744
2006 Impact Factor 2.602
2005 Impact Factor 2.491
2004 Impact Factor 2.378
2003 Impact Factor 2.422
2002 Impact Factor 2.15
2001 Impact Factor 2.516
2000 Impact Factor 2.719
1999 Impact Factor 2.306
1998 Impact Factor 2.29
1997 Impact Factor 2.18
1996 Impact Factor 2.195
1995 Impact Factor 2.606
1994 Impact Factor 2.145
1993 Impact Factor 2.087
1992 Impact Factor 1.937

Impact factor over time

Impact factor
Year

Additional details

5-year impact 4.07
Cited half-life 7.10
Immediacy index 0.68
Eigenfactor 0.23
Article influence 2.13
Website Geophysical Research Letters website
Other titles Geophysical research letters
ISSN 0094-8276
OCLC 1795290
Material type Periodical, Internet resource
Document type Journal / Magazine / Newspaper, Internet Resource

Publisher details

American Geophysical Union

  • Pre-print
    • Author can archive a pre-print version
  • Post-print
    • Author can archive a post-print version
  • Conditions
    • Authors' Pre-print on authors' personal website or departmental website
    • Authors' Post-print on authors' personal website or departmental website
    • Set statements to accompany submitted, accepted and published articles
    • Publisher copyright and source must be acknowledged with DOI
    • Publisher's version/PDF must be used in Institutional Repository 6 months after publication.
  • Classification
    ​ green

Publications in this journal

  • Source
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    ABSTRACT: 1] For Fe contained in long-range transported aeolian dust to act as a micronutrient for oceanic phytoplankton it must be first dissolved or mobilized. We propose that Fe-mobilization can occur in mineral dust from East Asia by the incorporation of SO 2 into the advecting dust plumes and subsequent acidification of the dust through heterogeneous SO 2 oxidation. To test this hypothesis, we consider a dust plume that originated from the gobi-deserts and advected over the Pacific Ocean. Data collected over the Yellow Sea confirm that this plume contained high concentrations of dust and SO 2 . Significant gaseous HNO 3 concentrations indicate that the dust particles were acidified (i.e., pH < 2). At these pH's, 1– 2% of the Fe contained in a deliquescent mineral dust particle would be mobilized within 3 –5 days. These results suggest a possible link between the rate of C-fixation in so-called High-Nitrate-Low-Chlorophyll regions of the Pacific Ocean and SO 2 emissions from East Asia.
    Geophysical Research Letters 01/2085; 30. DOI:10.1029/2003GL018035
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    ABSTRACT: 1] Precipitation data from the new ERA40 reanalyses and from a 200-year simulation confirm a robust main mode of precipitation variability in west Antarctica. An intermittently strong ENSO signature is found in this mode. However, high correlation with ENSO indices appears infrequent. Thus, the high correlation found in ERA40, and previously in other chronologically realistic data, in the late 1980s and the 1990s may not be expected to last. Unlike previously suggested by others, the sign of the correlation between ENSO indices and west Antarctic precipitation, when significant, does not appear to change in time: Precipitation variability at the ENSO pace in the Bellingshausen-Weddell (Ross-Amunsden) region is consistently in phase (phase opposition, respectively) with the Southern Oscillation Index. This is consistent with a tropospheric wave train connecting the tropical Pacific and west Antarctic regions, which modulates in phase opposition the advection of air and moisture in the 2 regions.
    Geophysical Research Letters 01/2081; 30. DOI:10.1029/2003GL018280
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    ABSTRACT: 1] The high-resolution wind vectors observed by the space-based scatterometer QuikSCAT, from 1999 to 2002, show that the double intertropical convergence zones (ITCZ) exist in the Atlantic and the eastern Pacific oceans for most of the annual cycle, and are far more extensive than previously recognized. For most of the time, the southern ITCZ is weaker than the northern one. The stronger ITCZ occurs when the northerly trade winds meet the southerly trade winds over warm water, resulting in deep convection. The weaker ITCZ over cooler water is caused by the deceleration of the surface winds as they approach the cold upwelling water near the equator. Decreases in vertical mixing and increases in vertical wind shear in the atmospheric boundary layer are suggested to be the causes of the deceleration of the trade winds as they move from warmer to colder water.
    Geophysical Research Letters 01/2072; 29. DOI:10.1029/2002GL015431
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    ABSTRACT: 1] The environmental damage caused by atmospheric pollutants is proportional to the duration of their effects. The global impacts of greenhouse gases (as measured by global warming potential) and ozone depleting substances (as measured by ozone depletion potential) have traditionally been calculated using the atmospheric lifetime of the source gas as a quantitative measure of the impact's duration, assuming that the gas quickly reaches a steady-state pattern which decays exponentially according to the lifetime. This assumed behavior obviously does not match the true rise and fall of impacts, particularly secondary ones like ozone depletion, that can be seen in numerical integrations or chemical mode decomposition. Here, the modes decomposition is used to prove that: (a) the steady-state pattern of impacts caused by specified emissions, multiplied by (b) the steady-state lifetime of the source gas for that emission pattern, is exactly equal to (c) the integral of all impacts -independent of the number and atmospheric residence times of secondary impacts.
    Geophysical Research Letters 01/2063; 29. DOI:10.1029/2002GL016299
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    ABSTRACT: 1] In the interior western United States, increased demand for water coupled with the uncertain nature of anthropogenic and natural hydroclimatic variations add challenges to the task of assessing the adequacy of the existing regional water resources systems. Current availability of relatively short instrumental streamflow records further limits the diagnosis of multidecadal and longer time variations. Here we develop a long-term perspective of streamflow variations using a 285-year long tree-ring reconstruction at Middle Boulder Creek, Colorado. Analysis of the reconstructed streamflow provides useful insights for assessing vulnerability: (a) a wider range of hydrologic variations on multidecadal time scales, not seen in the instrumental record, (b) wet/dry regimes show disparate fluctuations across various flow thresholds, and (c) temporal changes in the flow probabilities have varied ''flavors'' corresponding to wet and dry regimes and their spatial extent. Based on these results, we discuss implications for the climate-related vulnerability of regional water resources.
    Geophysical Research Letters 01/2036; 29. DOI:10.1029/2001GL014278
  • Max R. McGillen, François Bernard, Eric L. Fleming, James B. Burkholder
    Geophysical Research Letters 07/2015; DOI:10.1002/2015GL064939
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    ABSTRACT: To what extent can we treat topographic metrics such as river long profiles as a long-term record of multiple extreme geomorphic events, and hence use them for hazard prediction? We demonstrate that in an area of rapid mountain erosion where the landscape is highly reactive to extreme events, channel steepness measured by integrating area over upstream distance (chi-analysis) can be used as an indicator of geomorphic change during flash-floods. We compare normalised channel steepness to the impact of devastating floods in the upper Ganga Basin in Uttarakhand, northern India in June 2013. The pattern of sediment accumulation and erosion is broadly predictable from the distribution of normalised channel steepness; in reaches of high steepness, channel lowering up to 5 m undercut buildings causing collapse; in low steepness reaches, channels aggraded up to 30 m and widened causing flooding and burial by sediment. Normalised channel steepness provides a first-order prediction of the signal of geomorphic change during extreme flood events. Sediment aggradation in lower gradient reaches is a predictable characteristic of floods with a proportion of discharge fed by point sources such as glacial lakes.
    Geophysical Research Letters 07/2015; DOI:10.1002/2015GL063784