Global Warming on Neptune(GRL)

[White_Male_Canada]

Those damn Neptunians ! When will they learn to give up those SUVs !!!!

---------------------------------------------------------------------------------------------------------

The Space Science Institute in Colorado and the Lowell Observatory, note that measurements of visible light from Neptune have been taken at the Lowell Observatory in Flagstaff, Arizona since 1950. Obviously, light from Neptune can be related to seasons on the planet, small variations in Neptune’s orbit, the apparent tilt of the axis as viewed from the Earth, the varying distance from Neptune to Earth, and of course, changes in the atmosphere near the Lowell Observatory. Astronomers are clever, they are fully aware of these complications, and they adjust the measurements accordingly.

As seen in Figure 1, Neptune has been getting brighter since around 1980; furthermore, infrared measurements of the planet since 1980 show that the planet has been warming steadily from 1980 to 2004. As they say on Neptune, global warming has become an inconvenient truth. But with no one to blame, Hammel and Lockwood explored how variations in the output of the Sun might control variations in the brightness of Neptune.

What would seem so simple statistically is complicated by the degrees of freedom in the various time series which is related to the serial correlation in the data (e.g., next year’s value is highly dependent on this year’s value). Nonetheless, they find that the correlation coefficient between solar irradiance and Neptune’s brightness is near 0.90 (1.00 is perfect). The same relationship is found between the Earth’s temperature anomalies and the solar output. Hammel and Lockwood note “In other words, the Earth temperature values are as well correlated with solar irradiance (r = 0.89) as they are with Neptune’s blue brightness (|r| > 0.90), assuming a 10-year lag of the Neptune values.” The temporal lag is needed to account for the large mass of Neptune that would require years to adjust to any changes in solar output.

Hammel and Lockwood conclude that “In summary, if Neptune’s atmosphere is indeed responding to some variation in solar activity in a manner similar to that of the Earth albeit with a temporal lag” then “Neptune may provide an independent (and extraterrestrial) locale for studies of solar effects on planetary atmospheres.”

Hammel, H. B., and G. W. Lockwood, 2007. Suggestive correlations between the brightness of Neptune, solar variability, and Earth’s temperature, Geophysical Research Letters

[trish]

For those of you who may be interested:

The AGU publishes quickly reviewed letters to expedite research. The results published in Geophysical Research Letters are understood to be of a tenuous nature. Here is a quote from the website of the AGU:

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.
GRL is a Letters journal; limiting manuscript size expedites the review and publication process. A magazine-sized GRL can reach and be of interest to the largest AGU audience. With this goal, the Editorial Board evaluates manuscripts submitted to GRL according to the following criteria:
• Is it a short, concise research letter?
• Does it contain important scientific advances?
• Would it have immediate impact on the research of others?
GRL has been in publication since 1974. The Editors are adapting GRL to the evolving needs of the Earth science community. GRL Editors are now topical: the subject of the paper determines which Editor handles the review.

Notice that the letters are reviewed, NOT REFEREED. Just to get an idea sheer number of letters published I post a list below of what appears in the May issue so far. Notice few of these titles suggest Earth’s current climate change is driven solely by variations in the Sun’s energy flux. (Indeed evidence from the Solar Heliospheric Observatory indicates there are no variations that would account for Earth’s recent “warming”)

Here is the abstract from Hammel and Lockwoods letter:

H. B. Hammel
Space Science Institute, Boulder, Colorado, USA

G. W. Lockwood
Lowell Observatory, Flagstaff, Arizona, USA

Abstract
Long-term photometric measurements of Neptune show variations of brightness over half a century. Seasonal change in Neptune's atmosphere may partially explain a general rise in the long-term light curve, but cannot explain its detailed variations. This leads us to consider the possibility of solar-driven changes, i.e., changes incurred by innate solar variability perhaps coupled with changing seasonal insolation. Although correlations between Neptune's brightness and Earth's temperature anomaly—and between Neptune and two models of solar variability—are visually compelling, at this time they are not statistically significant due to the limited degrees of freedom of the various time series. Nevertheless, the striking similarity of the temporal patterns of variation should not be ignored simply because of low formal statistical significance. If changing brightnesses and temperatures of two different planets are correlated, then some planetary climate changes may be due to variations in the solar system environment.
Received 14 November 2006; accepted 15 March 2007; published 19 April 2007.
Keywords: Neptune; solar variability; photometric.
Index Terms: 6255 Planetary Sciences: Solar System Objects: Neptune; 5704 Planetary Sciences: Fluid Planets: Atmospheres (0343, 1060); 1616 Global Change: Climate variability (1635, 3305, 3309, 4215, 4513); 1650 Global Change: Solar variability (7537).

Please note how tentative they are about their own conclusions. They caution that the correlation they find is not “statistically significant”. Of course any tidbit will arouse the needy, and those whose claim solar activity alone accounts for the Earth’s climate change are in dire need of any evidence they can get.





Geophysical Research Letters
published in April 2007:

Liu, H.-L.
On the large wind shear and fast meridional transport above the mesopause
Geophys. Res. Lett., Vol. 34, No. 8, L08815
10.1029/2006GL028789
28 April 2007 [Full Article] [Print Version] [Abstract]
Wang, Yuxuan; McElroy, Michael B.; Boersma, K. Folkert; Eskes, Henk J.; Veefkind, J. Pepijn
Traffic restrictions associated with the Sino-African summit: Reductions of NOx detected from space
Geophys. Res. Lett., Vol. 34, No. 8, L08814
10.1029/2007GL029326
28 April 2007 [Full Article] [Print Version] [Abstract]
Ebinghaus, R.; Slemr, F.; Brenninkmeijer, C. A. M.; van Velthoven, P.; Zahn, A.; Hermann, M.; O'Sullivan, D. A.; Oram, D. E.
Emissions of gaseous mercury from biomass burning in South America in 2005 observed during CARIBIC flights
Geophys. Res. Lett., Vol. 34, No. 8, L08813
10.1029/2006GL028866
28 April 2007 [Full Article] [Print Version] [Abstract]
Chase, Zanna; Strutton, Peter G.; Hales, Burke
Correction to “Iron links river runoff and shelf width to phytoplankton biomass along the U.S. West Coast”
Geophys. Res. Lett., Vol. 34, No. 8, L08606
10.1029/2007GL029924
28 April 2007 [Full Article] [Print Version] [Abstract]
Hinkley, Todd
Lead (Pb) in old Antarctic ice: Some from dust, some from other sources
Geophys. Res. Lett., Vol. 34, No. 8, L08502
10.1029/2006GL028736
28 April 2007 [Full Article] [Print Version] [Abstract]
Crow, W. T.; Bolten, J. D.
Estimating precipitation errors using spaceborne surface soil moisture retrievals
Geophys. Res. Lett., Vol. 34, No. 8, L08403
10.1029/2007GL029450
28 April 2007 [Full Article] [Print Version] [Abstract]
Abatzoglou, John T.; Magnusdottir, Gudrun
Wave breaking along the stratospheric polar vortex as seen in ERA-40 data
Geophys. Res. Lett., Vol. 34, No. 8, L08812
10.1029/2007GL029509
27 April 2007 [Full Article] [Print Version] [Abstract]
Tao, Zhining; Williams, Allen; Huang, Ho-Chun; Caughey, Michael; Liang, Xin-Zhong
Sensitivity of U.S. surface ozone to future emissions and climate changes
Geophys. Res. Lett., Vol. 34, No. 8, L08811
10.1029/2007GL029455
27 April 2007 [Full Article] [Print Version] [Abstract]
Montési, Laurent G. J.
A constitutive model for layer development in shear zones near the brittle-ductile transition
Geophys. Res. Lett., Vol. 34, No. 8, L08307
10.1029/2007GL029250
27 April 2007 [Full Article] [Print Version] [Abstract]
Walte, Nicolas; Heidelbach, Florian; Miyajima, Nobuyoshi; Frost, Daniel
Texture development and TEM analysis of deformed CaIrO3: Implications for the D″ layer at the core-mantle boundary
Geophys. Res. Lett., Vol. 34, No. 8, L08306
10.1029/2007GL029407
27 April 2007 [Full Article] [Print Version] [Abstract]
Wing, A. A.; Sobel, A. H.; Camargo, S. J.
Relationship between the potential and actual intensities of tropical cyclones on interannual time scales
Geophys. Res. Lett., Vol. 34, No. 8, L08810
10.1029/2006GL028581
26 April 2007 [Full Article] [Print Version] [Abstract]
Bindi, D.; Parolai, S.; Grosser, H.; Milkereit, C.; Durukal, E.
Empirical ground-motion prediction equations for northwestern Turkey using the aftershocks of the 1999 Kocaeli earthquake
Geophys. Res. Lett., Vol. 34, No. 8, L08305
10.1029/2007GL029222
26 April 2007 [Full Article] [Print Version] [Abstract]
Bollinger, L.; Perrier, F.; Avouac, J.-P.; Sapkota, S.; Gautam, U.; Tiwari, D. R.
Seasonal modulation of seismicity in the Himalaya of Nepal
Geophys. Res. Lett., Vol. 34, No. 8, L08304
10.1029/2006GL029192
26 April 2007 [Full Article] [Print Version] [Abstract]
Carlson, B. E.; Lehtinen, N. G.; Inan, U. S.
Constraints on terrestrial gamma ray flash production from satellite observation
Geophys. Res. Lett., Vol. 34, No. 8, L08809
10.1029/2006GL029229
25 April 2007 [Full Article] [Print Version] [Abstract]
Williams, Paul D.; Guilyardi, Eric; Sutton, Rowan; Gregory, Jonathan; Madec, Gurvan
A new feedback on climate change from the hydrological cycle
Geophys. Res. Lett., Vol. 34, No. 8, L08706
10.1029/2007GL029275
25 April 2007 [Full Article] [Print Version] [Abstract]
Ohashi, Mizue; Kume, Tomonori; Yamane, Seiki; Suzuki, Masakazu
Hot spots of soil respiration in an Asian tropical rainforest
Geophys. Res. Lett., Vol. 34, No. 8, L08705
10.1029/2007GL029587
25 April 2007 [Full Article] [Print Version] [Abstract]
Sonnerup, Rolf E.; Bullister, John L.; Mecking, Sabine
Circulation rate changes in the eastern subtropical North Pacific based on chlorofluorocarbon ages
Geophys. Res. Lett., Vol. 34, No. 8, L08605
10.1029/2006GL028813
25 April 2007 [Full Article] [Print Version] [Abstract]
Cao, A.; Romanowicz, B.
Test of the innermost inner core models using broadband PKIKP travel time residuals
Geophys. Res. Lett., Vol. 34, No. 8, L08303
10.1029/2007GL029384
25 April 2007 [Full Article] [Print Version] [Abstract]
Sun, Fanglin; Ma, Yaoming; Li, Maoshan; Ma, Weiqiang; Tian, Hui; Metzger, Stefan
Boundary layer effects above a Himalayan valley near Mount Everest
Geophys. Res. Lett., Vol. 34, No. 8, L08808
10.1029/2007GL029484
24 April 2007 [Full Article] [Print Version] [Abstract]
Pozdnyakov, Dmitry V.; Johannessen, Ola M.; Korosov, Anton A.; Pettersson, Lasse H.; Grassl, Hartmut; Miles, Martin W.
Satellite evidence of ecosystem changes in the White Sea: A semi-enclosed arctic marginal shelf sea
Geophys. Res. Lett., Vol. 34, No. 8, L08604
10.1029/2006GL028947
24 April 2007 [Full Article] [Print Version] [Abstract]
Morley, S. K.; Freeman, M. P.
On the association between northward turnings of the interplanetary magnetic field and substorm onsets
Geophys. Res. Lett., Vol. 34, No. 8, L08104
10.1029/2006GL028891
24 April 2007 [Full Article] [Print Version] [Abstract]
Tian, B.; Yung, Y. L.; Waliser, D. E.; Tyranowski, T.; Kuai, L.; Fetzer, E. J.; Irion, F. W.
Intraseasonal variations of the tropical total ozone and their connection to the Madden-Julian Oscillation
Geophys. Res. Lett., Vol. 34, No. 8, L08704
10.1029/2007GL029451
21 April 2007 [Full Article] [Print Version] [Abstract]
Itoh, Motoyo; Carmack, Eddy; Shimada, Koji; McLaughlin, Fiona; Nishino, Shigeto; Zimmermann, Sarah
Formation and spreading of Eurasian source oxygen-rich halocline water into the Canadian Basin in the Arctic Ocean
Geophys. Res. Lett., Vol. 34, No. 8, L08603
10.1029/2007GL029482
21 April 2007 [Full Article] [Print Version] [Abstract]
Inan, U. S.; Lehtinen, N. G.; Moore, R. C.; Hurley, K.; Boggs, S.; Smith, D. M.; Fishman, G. J.
Massive disturbance of the daytime lower ionosphere by the giant γ-ray flare from magnetar SGR 1806–20
Geophys. Res. Lett., Vol. 34, No. 8, L08103
10.1029/2006GL029145
21 April 2007 [Full Article] [Print Version] [Abstract]
Mendrok, J.; Schreier, F.; Höpfner, M.
Estimating cirrus cloud properties from MIPAS data
Geophys. Res. Lett., Vol. 34, No. 8, L08807
10.1029/2006GL028246
20 April 2007 [Full Article] [Print Version] [Abstract]
Jurac, S.; Richardson, J. D.
Neutral cloud interaction with Saturn's main rings
Geophys. Res. Lett., Vol. 34, No. 8, L08102
10.1029/2007GL029567
20 April 2007 [Full Article] [Print Version] [Abstract]
Wu, Qigang; Karoly, David J.
Implications of changes in the atmospheric circulation on the detection of regional surface air temperature trends
Geophys. Res. Lett., Vol. 34, No. 8, L08703
10.1029/2006GL028502
19 April 2007 [Full Article] [Print Version] [Abstract]
Alsdorf, Doug; Bates, Paul; Melack, John; Wilson, Matt; Dunne, Thomas
Spatial and temporal complexity of the Amazon flood measured from space
Geophys. Res. Lett., Vol. 34, No. 8, L08402
10.1029/2007GL029447
19 April 2007 [Full Article] [Print Version] [Abstract]
Hammel, H. B.; Lockwood, G. W.
Suggestive correlations between the brightness of Neptune, solar variability, and Earth's temperature
Geophys. Res. Lett., Vol. 34, No. 8, L08203
10.1029/2006GL028764
19 April 2007 [Full Article] [Print Version] [Abstract]
Yumimoto, K.; Uno, I.; Sugimoto, N.; Shimizu, A.; Satake, S.
Adjoint inverse modeling of dust emission and transport over East Asia
Geophys. Res. Lett., Vol. 34, No. 8, L08806
10.1029/2006GL028551
18 April 2007 [Full Article] [Print Version] [Abstract]
Koren, Ilan; Remer, Lorraine A.; Kaufman, Yoram J.; Rudich, Yinon; Martins, J. Vanderlei
On the twilight zone between clouds and aerosols
Geophys. Res. Lett., Vol. 34, No. 8, L08805
10.1029/2007GL029253
18 April 2007 [Full Article] [Print Version] [Abstract]
Lehtinen, Nikolai G.; Inan, Umran S.
Possible persistent ionization caused by giant blue jets
Geophys. Res. Lett., Vol. 34, No. 8, L08804
10.1029/2006GL029051
18 April 2007 [Full Article] [Print Version] [Abstract]
Vecchi, Gabriel A.; Soden, Brian J.
Increased tropical Atlantic wind shear in model projections of global warming
Geophys. Res. Lett., Vol. 34, No. 8, L08702
10.1029/2006GL028905
18 April 2007 [Full Article] [Print Version] [Abstract]
Jackson, Jennifer M.; Myers, Paul G.; Ianson, Debby
Correction to “An examination of advection in the northeast Pacific Ocean, 2001–2005”
Geophys. Res. Lett., Vol. 34, No. 8, L08602
10.1029/2007GL029374
18 April 2007 [Full Article] [Print Version] [Abstract]
Nicolsky, D. J.; Romanovsky, V. E.; Alexeev, V. A.; Lawrence, D. M.
Improved modeling of permafrost dynamics in a GCM land-surface scheme
Geophys. Res. Lett., Vol. 34, No. 8, L08501
10.1029/2007GL029525
18 April 2007 [Full Article] [Print Version] [Abstract]
Guanter, L.; Alonso, L.; Gómez-Chova, L.; Amorós-López, J.; Vila, J.; Moreno, J.
Estimation of solar-induced vegetation fluorescence from space measurements
Geophys. Res. Lett., Vol. 34, No. 8, L08401
10.1029/2007GL029289
18 April 2007 [Full Article] [Print Version] [Abstract]
Sassen, Kenneth; Zhu, Jiang; Webley, Peter; Dean, Ken; Cobb, Patrick
Volcanic ash plume identification using polarization lidar: Augustine eruption, Alaska
Geophys. Res. Lett., Vol. 34, No. 8, L08803
10.1029/2006GL027237
17 April 2007 [Full Article] [Print Version] [Abstract]
Moorthy, K. Krishna; Babu, S. Suresh; Badarinath, K. V. S.; Sunilkumar, S. V.; Kiranchand, T. R.; Ahmed, Y. Nazeer
Latitudinal distribution of aerosol black carbon and its mass fraction to composite aerosols over peninsular India during winter season
Geophys. Res. Lett., Vol. 34, No. 8, L08802
10.1029/2006GL029150
17 April 2007 [Full Article] [Print Version] [Abstract]
Hudson, James G.
Variability of the relationship between particle size and cloud-nucleating ability
Geophys. Res. Lett., Vol. 34, No. 8, L08801
10.1029/2006GL028850
17 April 2007 [Full Article] [Print Version] [Abstract]
Li, J.-L.; Jiang, J. H.; Waliser, D. E.; Tompkins, A. M.
Assessing consistency between EOS MLS and ECMWF analyzed and forecast estimates of cloud ice
Geophys. Res. Lett., Vol. 34, No. 8, L08701
10.1029/2006GL029022
17 April 2007 [Full Article] [Print Version] [Abstract]
Umlauf, L.; Arneborg, L.; Burchard, H.; Fiekas, V.; Lass, H. U.; Mohrholz, V.; Prandke, H.
Transverse structure of turbulence in a rotating gravity current
Geophys. Res. Lett., Vol. 34, No. 8, L08601
10.1029/2007GL029521
17 April 2007 [Full Article] [Print Version] [Abstract]
Arai, S.; Takemoto, Y.
Mantle wehrlite from Hess Deep as a crystal cumulate from an ultra-depleted primary melt in East Pacific Rise
Geophys. Res. Lett., Vol. 34, No. 8, L08302
10.1029/2006GL029198
17 April 2007 [Full Article] [Print Version] [Abstract]
De Gregorio, Sofia; Madonia, Paolo; Gurrieri, Sergio; Giudice, Gaetano; Inguaggiato, Salvatore
Contemporary total dissolved gas pressure and soil temperature anomalies recorded at Stromboli volcano (Italy)
Geophys. Res. Lett., Vol. 34, No. 8, L08301
10.1029/2007GL029578
17 April 2007 [Full Article] [Print Version] [Abstract]
Forbes, J. M.; Konopliv, A.
Oscillation of Venus' upper atmosphere
Geophys. Res. Lett., Vol. 34, No. 8, L08202
10.1029/2007GL029252
17 April 2007 [Full Article] [Print Version] [Abstract]
Ma, Ying-Juan; Nagy, Andrew F.
Ion escape fluxes from Mars
Geophys. Res. Lett., Vol. 34, No. 8, L08201
10.1029/2006GL029208
17 April 2007 [Full Article] [Print Version] [Abstract]
Pradipta, R.; Labno, A.; Lee, M. C.; Burke, W. J.; Sulzer, M. P.; Cohen, J. A.; Burton, L. M.; Kuo, S. P.; Rokusek, D. L.
Electron precipitation from the inner radiation belt above Arecibo
Geophys. Res. Lett., Vol. 34, No. 8, L08101
10.1029/2007GL029807
17 April 2007 [Full Article] [Print Version] [Abstract]
Renard, Jean-Baptiste; Blelly, Pierre-Louis; Berthet, Gwenaël
Reply to comment by B. Funke et al. on “Origin of the January–April 2004 increase in stratospheric NO2 observed in the northern polar latitudes”
Geophys. Res. Lett., Vol. 34, No. 7, L07814
10.1029/2006GL028839
14 April 2007 [Full Article] [Print Version] [Abstract]
Funke, B.; López-Puertas, M.; Fischer, H.; Stiller, G. P.; von Clarmann, T.; Wetzel, G.; Carli, B.; Belotti, C.
Comment on “Origin of the January–April 2004 increase in stratospheric NO2 observed in northern polar latitudes” by Jean-Baptiste Renard et al.
Geophys. Res. Lett., Vol. 34, No. 7, L07813
10.1029/2006GL027518
14 April 2007 [Full Article] [Print Version] [Abstract]
Bouet, Christel; Cautenet, Guy; Washington, Richard; Todd, Martin C.; Laurent, Benoit; Marticorena, Béatrice; Bergametti, Gilles
Mesoscale modeling of aeolian dust emission during the BoDEx 2005 experiment
Geophys. Res. Lett., Vol. 34, No. 7, L07812
10.1029/2006GL029184
14 April 2007 [Full Article] [Print Version] [Abstract]
Holliday, N. Penny; Meyer, Amélie; Bacon, Sheldon; Alderson, Steven G.; de Cuevas, Beverly
Retroflection of part of the east Greenland current at Cape Farewell
Geophys. Res. Lett., Vol. 34, No. 7, L07609
10.1029/2006GL029085
14 April 2007 [Full Article] [Print Version] [Abstract]
Song, Jinxi; Chen, Xunhong; Cheng, Cheng; Summerside, Scott; Wen, Fujiang
Effects of hyporheic processes on streambed vertical hydraulic conductivity in three rivers of Nebraska
Geophys. Res. Lett., Vol. 34, No. 7, L07409
10.1029/2007GL029254
14 April 2007 [Full Article] [Print Version] [Abstract]
Dai, Zhenxue; Wolfsberg, Andrew; Lu, Zhiming; Reimus, Paul
Upscaling matrix diffusion coefficients for heterogeneous fractured rocks
Geophys. Res. Lett., Vol. 34, No. 7, L07408
10.1029/2007GL029332
14 April 2007 [Full Article] [Print Version] [Abstract]
Salimbeni, S.; Pondrelli, S.; Margheriti, L.; Levin, V.; Park, J.; Plomerova, J.; Babuska, V.
Abrupt change in mantle fabric across northern Apennines detected using seismic anisotropy
Geophys. Res. Lett., Vol. 34, No. 7, L07308
10.1029/2007GL029302
14 April 2007 [Full Article] [Print Version] [Abstract]
Williams, Margaret B.; Aydin, Murat; Tatum, Cheryl; Saltzman, Eric S.
A 2000 year atmospheric history of methyl chloride from a South Pole ice core: Evidence for climate-controlled variability
Geophys. Res. Lett., Vol. 34, No. 7, L07811
10.1029/2006GL029142
13 April 2007 [Full Article] [Print Version] [Abstract]
Kanmae, T.; Stenbaek-Nielsen, H. C.; McHarg, M. G.
Altitude resolved sprite spectra with 3 ms temporal resolution
Geophys. Res. Lett., Vol. 34, No. 7, L07810
10.1029/2006GL028608
13 April 2007 [Full Article] [Print Version] [Abstract]
Smith, Anne K.; Pancheva, Dora V.; Mitchell, Nicholas J.; Marsh, Daniel R.; Russell, James M., III; Mlynczak, Martin G.
A link between variability of the semidiurnal tide and planetary waves in the opposite hemisphere
Geophys. Res. Lett., Vol. 34, No. 7, L07809
10.1029/2006GL028929
13 April 2007 [Full Article] [Print Version] [Abstract]
Hu, Ming; Xue, Ming
Implementation and evaluation of cloud analysis with WSR-88D reflectivity data for GSI and WRF-ARW
Geophys. Res. Lett., Vol. 34, No. 7, L07808
10.1029/2006GL028847
13 April 2007 [Full Article] [Print Version] [Abstract]
Vautard, R.; Yiou, P.; D'Andrea, F.; de Noblet, N.; Viovy, N.; Cassou, C.; Polcher, J.; Ciais, P.; Kageyama, M.; Fan, Y.
Summertime European heat and drought waves induced by wintertime Mediterranean rainfall deficit
Geophys. Res. Lett., Vol. 34, No. 7, L07711
10.1029/2006GL028001
13 April 2007 [Full Article] [Print Version] [Abstract]
Küttel, M.; Luterbacher, J.; Zorita, E.; Xoplaki, E.; Riedwyl, N.; Wanner, H.
Testing a European winter surface temperature reconstruction in a surrogate climate
Geophys. Res. Lett., Vol. 34, No. 7, L07710
10.1029/2006GL027907
13 April 2007 [Full Article] [Print Version] [Abstract]
Evans, Chris D.; Freeman, Chris; Cork, Lorna G.; Thomas, David N.; Reynolds, Brian; Billett, Michael F.; Garnett, Mark H.; Norris, David
Evidence against recent climate-induced destabilisation of soil carbon from 14C analysis of riverine dissolved organic matter
Geophys. Res. Lett., Vol. 34, No. 7, L07407
10.1029/2007GL029431
13 April 2007 [Full Article] [Print Version] [Abstract]
Gottsmann, Joachim; Carniel, Roberto; Coppo, Nicolas; Wooller, Luke; Hautmann, Stefanie; Rymer, Hazel
Oscillations in hydrothermal systems as a source of periodic unrest at caldera volcanoes: Multiparameter insights from Nisyros, Greece
Geophys. Res. Lett., Vol. 34, No. 7, L07307
10.1029/2007GL029594
13 April 2007 [Full Article] [Print Version] [Abstract]
González-Dávila, Melchor; Santana-Casiano, J. Magdalena; González-Dávila, Enrique F.
Interannual variability of the upper ocean carbon cycle in the northeast Atlantic Ocean
Geophys. Res. Lett., Vol. 34, No. 7, L07608
10.1029/2006GL028145
12 April 2007 [Full Article] [Print Version] [Abstract]
McArdell, Brian W.; Bartelt, Perry; Kowalski, Julia
Field observations of basal forces and fluid pore pressure in a debris flow
Geophys. Res. Lett., Vol. 34, No. 7, L07406
10.1029/2006GL029183
12 April 2007 [Full Article] [Print Version] [Abstract]
Yang, Shaw-Yang; Yeh, Hund-Der
A closed-form solution for a confined flow into a tunnel during progressive drilling in a multi-layer groundwater flow system
Geophys. Res. Lett., Vol. 34, No. 7, L07405
10.1029/2007GL029285
12 April 2007 [Full Article] [Print Version] [Abstract]
Frandsen, C.; Mørup, S.; McEnroe, S. A.; Robinson, P.; Langenhorst, F.
Magnetic phases in hemo-ilmenite: Insight from low-velocity and high-field Mössbauer spectroscopy
Geophys. Res. Lett., Vol. 34, No. 7, L07306
10.1029/2006GL029063
12 April 2007 [Full Article] [Print Version] [Abstract]
Lorenz, R. D.; Wood, C. A.; Lunine, J. I.; Wall, S. D.; Lopes, R. M.; Mitchell, K. L.; Paganelli, F.; Anderson, Y. Z.; Wye, L.; Tsai, C.; Zebker, H.; Stofan, E. R.
Titan's young surface: Initial impact crater survey by Cassini RADAR and model comparison
Geophys. Res. Lett., Vol. 34, No. 7, L07204
10.1029/2006GL028971
12 April 2007 [Full Article] [Print Version] [Abstract]
Vimont, Daniel J.; Kossin, James P.
The Atlantic Meridional Mode and hurricane activity
Geophys. Res. Lett., Vol. 34, No. 7, L07709
10.1029/2007GL029683
11 April 2007 [Full Article] [Print Version] [Abstract]
Bitz, C. M.; Chiang, J. C. H.; Cheng, W.; Barsugli, J. J.
Rates of thermohaline recovery from freshwater pulses in modern, Last Glacial Maximum, and greenhouse warming climates
Geophys. Res. Lett., Vol. 34, No. 7, L07708
10.1029/2006GL029237
11 April 2007 [Full Article] [Print Version] [Abstract]
Stegmann, Sylvia; Strasser, Michael; Anselmetti, Flavio; Kopf, Achim
Geotechnical in situ characterization of subaquatic slopes: The role of pore pressure transients versus frictional strength in landslide initiation
Geophys. Res. Lett., Vol. 34, No. 7, L07607
10.1029/2006GL029122
11 April 2007 [Full Article] [Print Version] [Abstract]
Hu, Chuanmin; Muller-Karger, Frank E.
Response of sea surface properties to Hurricane Dennis in the eastern Gulf of Mexico
Geophys. Res. Lett., Vol. 34, No. 7, L07606
10.1029/2006GL028935
11 April 2007 [Full Article] [Print Version] [Abstract]
Ajo-Franklin, J. B.; Geller, J. T.; Harris, J. M.
Ultrasonic properties of granular media saturated with DNAPL/water mixtures
Geophys. Res. Lett., Vol. 34, No. 7, L07404
10.1029/2006GL029200
11 April 2007 [Full Article] [Print Version] [Abstract]
Berne, A.; Uijlenhoet, R.
Path-averaged rainfall estimation using microwave links: Uncertainty due to spatial rainfall variability
Geophys. Res. Lett., Vol. 34, No. 7, L07403
10.1029/2007GL029409
11 April 2007 [Full Article] [Print Version] [Abstract]
Watanabe, Tomoko; Hiramatsu, Yoshihiro; Obara, Kazushige
Scaling relationship between the duration and the amplitude of non-volcanic deep low-frequency tremors
Geophys. Res. Lett., Vol. 34, No. 7, L07305
10.1029/2007GL029391
11 April 2007 [Full Article] [Print Version] [Abstract]
Chaput, J. A.; Bostock, M. G.
Seismic interferometry using non-volcanic tremor in Cascadia
Geophys. Res. Lett., Vol. 34, No. 7, L07304
10.1029/2007GL028987
11 April 2007 [Full Article] [Print Version] [Abstract]
Palo, S. E.; Forbes, J. M.; Zhang, X.; Russell, J. M., III; Mlynczak, M. G.
An eastward propagating two-day wave: Evidence for nonlinear planetary wave and tidal coupling in the mesosphere and lower thermosphere
Geophys. Res. Lett., Vol. 34, No. 7, L07807
10.1029/2006GL027728
10 April 2007 [Full Article] [Print Version] [Abstract]
Ren, Ji; Liu, Hongyan; Yin, Yi; He, Siyuan
Drivers of greening trend across vertically distributed biomes in temperate arid Asia
Geophys. Res. Lett., Vol. 34, No. 7, L07707
10.1029/2007GL029435
10 April 2007 [Full Article] [Print Version] [Abstract]
Costa, Marcos H.; Yanagi, Silvia N. M.; Souza, Paulo J. O. P.; Ribeiro, Aristides; Rocha, Edson J. P.
Climate change in Amazonia caused by soybean cropland expansion, as compared to caused by pastureland expansion
Geophys. Res. Lett., Vol. 34, No. 7, L07706
10.1029/2007GL029271
10 April 2007 [Full Article] [Print Version] [Abstract]
Babanin, Alexander; Chalikov, Dmitry; Young, Ian; Savelyev, Ivan
Predicting the breaking onset of surface water waves
Geophys. Res. Lett., Vol. 34, No. 7, L07605
10.1029/2006GL029135
10 April 2007 [Full Article] [Print Version] [Abstract]
Wesson, Robert L.; Boyd, Oliver S.
Stress before and after the 2002 Denali fault earthquake
Geophys. Res. Lett., Vol. 34, No. 7, L07303
10.1029/2007GL029189
10 April 2007 [Full Article] [Print Version] [Abstract]
Huba, J. D.; Joyce, G.
Equatorial spread F modeling: Multiple bifurcated structures, secondary instabilities, large density ‘bite-outs,’ and supersonic flows
Geophys. Res. Lett., Vol. 34, No. 7, L07105
10.1029/2006GL028519
10 April 2007 [Full Article] [Print Version] [Abstract]
Papayannis, A.; Zhang, H. Q.; Amiridis, V.; Ju, H. B.; Chourdakis, G.; Georgoussis, G.; Pérez, C.; Chen, H. B.; Goloub, P.; Mamouri, R. E.; Kazadzis, S.; Paronis, D.; Tsaknakis, G.; Baldasano, J. M.
Extraordinary dust event over Beijing, China, during April 2006: Lidar, Sun photometric, satellite observations and model validation
Geophys. Res. Lett., Vol. 34, No. 7, L07806
10.1029/2006GL029125
07 April 2007 [Full Article] [Print Version] [Abstract]
Ordóñez, C.; Brunner, D.; Staehelin, J.; Hadjinicolaou, P.; Pyle, J. A.; Jonas, M.; Wernli, H.; Prévôt, A. S. H.
Strong influence of lowermost stratospheric ozone on lower tropospheric background ozone changes over Europe
Geophys. Res. Lett., Vol. 34, No. 7, L07805
10.1029/2006GL029113
07 April 2007 [Full Article] [Print Version] [Abstract]
Chen, Xi; Lin, Guangxing; Fu, Zuntao
Long-range correlations in daily relative humidity fluctuations: A new index to characterize the climate regions over China
Geophys. Res. Lett., Vol. 34, No. 7, L07804
10.1029/2006GL027755
07 April 2007 [Full Article] [Print Version] [Abstract]
Greatbatch, Richard J.; Zhai, Xiaoming; Eden, Carsten; Olbers, Dirk
The possible role in the ocean heat budget of eddy-induced mixing due to air-sea interaction
Geophys. Res. Lett., Vol. 34, No. 7, L07604
10.1029/2007GL029533
07 April 2007 [Full Article] [Print Version] [Abstract]
Böse, M.; Ionescu, C.; Wenzel, F.
Earthquake early warning for Bucharest, Romania: Novel and revised scaling relations
Geophys. Res. Lett., Vol. 34, No. 7, L07302
10.1029/2007GL029396
07 April 2007 [Full Article] [Print Version] [Abstract]
Goren, L.; Aharonov, E.
Long runout landslides: The role of frictional heating and hydraulic diffusivity
Geophys. Res. Lett., Vol. 34, No. 7, L07301
10.1029/2006GL028895
07 April 2007 [Full Article] [Print Version] [Abstract]
Wang, H.; Lühr, H.
Seasonal-longitudinal variation of substorm occurrence frequency: Evidence for ionospheric control
Geophys. Res. Lett., Vol. 34, No. 7, L07104
10.1029/2007GL029423
07 April 2007 [Full Article] [Print Version] [Abstract]
Wang, Faming
Investigating ENSO sensitivity to mean climate in an intermediate model using a novel statistical technique
Geophys. Res. Lett., Vol. 34, No. 7, L07705
10.1029/2007GL029348
06 April 2007 [Full Article] [Print Version] [Abstract]
Gazeau, Frédéric; Quiblier, Christophe; Jansen, Jeroen M.; Gattuso, Jean-Pierre; Middelburg, Jack J.; Heip, Carlo H. R.
Impact of elevated CO2 on shellfish calcification
Geophys. Res. Lett., Vol. 34, No. 7, L07603
10.1029/2006GL028554
06 April 2007 [Full Article] [Print Version] [Abstract]
Bart, Gwendolyn D.; Melosh, H. J.
Using lunar boulders to distinguish primary from distant secondary impact craters
Geophys. Res. Lett., Vol. 34, No. 7, L07203
10.1029/2007GL029306
06 April 2007 [Full Article] [Print Version] [Abstract]
Manga, M.; Wang, C.-Y.
Pressurized oceans and the eruption of liquid water on Europa and Enceladus
Geophys. Res. Lett., Vol. 34, No. 7, L07202
10.1029/2007GL029297
06 April 2007 [Full Article] [Print Version] [Abstract]
Kiss, P.; Jánosi, I. M.; Torres, O.
Early calibration problems detected in TOMS Earth-Probe aerosol signal
Geophys. Res. Lett., Vol. 34, No. 7, L07803
10.1029/2006GL028108
05 April 2007 [Full Article] [Print Version] [Abstract]
Ren, R.-C.; Cai, Ming
Meridional and vertical out-of-phase relationships of temperature anomalies associated with the Northern Annular Mode variability
Geophys. Res. Lett., Vol. 34, No. 7, L07704
10.1029/2006GL028729
05 April 2007 [Full Article] [Print Version] [Abstract]
Coleman, Neil M.; Dinwiddie, Cynthia L.; Baker, Victor R.
Evidence that floodwaters filled and overflowed Capri Chasma, Mars
Geophys. Res. Lett., Vol. 34, No. 7, L07201
10.1029/2006GL028872
05 April 2007 [Full Article] [Print Version] [Abstract]
Inan, U. S.; Piddyachiy, D.; Peter, W. B.; Sauvaud, J. A.; Parrot, M.
DEMETER satellite observations of lightning-induced electron precipitation
Geophys. Res. Lett., Vol. 34, No. 7, L07103
10.1029/2006GL029238
05 April 2007 [Full Article] [Print Version] [Abstract]
von Savigny, C.; Burrows, J. P.; Rapp, M.
UV limb-scatter spectra of noctilucent clouds consistent with mono-modal particle size distribution
Geophys. Res. Lett., Vol. 34, No. 7, L07802
10.1029/2006GL028846
04 April 2007 [Full Article] [Print Version] [Abstract]
Gultepe, I.; Isaac, G. A.
Cloud fraction parameterization as a function of mean cloud water content and its variance using in-situ observations
Geophys. Res. Lett., Vol. 34, No. 7, L07801
10.1029/2006GL028223
04 April 2007 [Full Article] [Print Version] [Abstract]
Raible, C. C.
On the relation between extremes of midlatitude cyclones and the atmospheric circulation using ERA40
Geophys. Res. Lett., Vol. 34, No. 7, L07703
10.1029/2006GL029084
04 April 2007 [Full Article] [Print Version] [Abstract]
Morison, James; Wahr, John; Kwok, Ron; Peralta-Ferriz, Cecilia
Recent trends in Arctic Ocean mass distribution revealed by GRACE
Geophys. Res. Lett., Vol. 34, No. 7, L07602
10.1029/2006GL029016
04 April 2007 [Full Article] [Print Version] [Abstract]
Wörman, Anders; Packman, Aaron I.; Marklund, Lars; Harvey, Judson W.; Stone, Susa H.
Fractal topography and subsurface water flows from fluvial bedforms to the continental shield
Geophys. Res. Lett., Vol. 34, No. 7, L07402
10.1029/2007GL029426
04 April 2007 [Full Article] [Print Version] [Abstract]
Halfar, Jochen; Steneck, Robert; Schöne, Bernd; Moore, G. W. K.; Joachimski, Michael; Kronz, Andreas; Fietzke, Jan; Estes, James
Coralline alga reveals first marine record of subarctic North Pacific climate change
Geophys. Res. Lett., Vol. 34, No. 7, L07702
10.1029/2006GL028811
03 April 2007 [Full Article] [Print Version] [Abstract]
Aragão, Luiz Eduardo O. C.; Malhi, Yadvinder; Roman-Cuesta, Rosa Maria; Saatchi, Sassan; Anderson, Liana O.; Shimabukuro, Yosio Edemir
Spatial patterns and fire response of recent Amazonian droughts
Geophys. Res. Lett., Vol. 34, No. 7, L07701
10.1029/2006GL028946
03 April 2007 [Full Article] [Print Version] [Abstract]
Noh, Yign; Yim, Bo Young; You, Sung Hyup; Yoon, Jong Hwan; Qiu, Bo
Seasonal variation of eddy kinetic energy of the North Pacific Subtropical Countercurrent simulated by an eddy-resolving OGCM
Geophys. Res. Lett., Vol. 34, No. 7, L07601
10.1029/2006GL029130
03 April 2007 [Full Article] [Print Version] [Abstract]
Platzer, K.; Bartelt, P.; Kern, M.
Measurements of dense snow avalanche basal shear to normal stress ratios (S/N)
Geophys. Res. Lett., Vol. 34, No. 7, L07501
10.1029/2006GL028670
03 April 2007 [Full Article] [Print Version] [Abstract]
Emanuel, Ryan E.; D'Odorico, Paolo; Epstein, Howard E.
Evidence of optimal water use by vegetation across a range of North American ecosystems
Geophys. Res. Lett., Vol. 34, No. 7, L07401
10.1029/2006GL028909
03 April 2007 [Full Article] [Print Version] [Abstract]
Lui, A. T. Y.; Dunlop, M. W.; Rème, H.; Kistler, L. M.; Gustafsson, G.; Zong, Q.-G.
Internal structure of a magnetic flux rope from Cluster observations
Geophys. Res. Lett., Vol. 34, No. 7, L07102
10.1029/2007GL029263
03 April 2007 [Full Article] [Print Version] [Abstract]
Chaston, C. C.; Carlson, C. W.; McFadden, J. P.; Ergun, R. E.; Strangeway, R. J.
How important are dispersive Alfvén waves for auroral particle acceleration?
Geophys. Res. Lett., Vol. 34, No. 7, L07101
10.1029/2006GL029144
03 April 2007 [Full Article] [Print Version] [Abstract]

2007
________________________________________
Jan • Feb • Mar
Apr • May • Jun
Jul • Aug • Sep
Oct • Nov • Dec
________________________________________
To report broken links email links-help@agu.org.



________________________________________
© 2007 American Geophysical Union

[trish]

that list was April's, not May's.

[guyone]

Regardless the Neptunians should not be driving around in SUV's or letting their cows fart so much.

[trish]

they shouldn't power their SUV's. nor their cows, with fossil fuels.

[qeuqheeg222]

solar might be a little hard out in them parts....

[classydtwngrl]

Those damn Neptunians ! When will they learn to give up those SUVs !!!!

---------------------------------------------------------------------------------------------------------

The Space Science Institute in Colorado and the Lowell Observatory, note that measurements of visible light from Neptune have been taken at the Lowell Observatory in Flagstaff, Arizona since 1950. Obviously, light from Neptune can be related to seasons on the planet, small variations in Neptune’s orbit, the apparent tilt of the axis as viewed from the Earth, the varying distance from Neptune to Earth, and of course, changes in the atmosphere near the Lowell Observatory. Astronomers are clever, they are fully aware of these complications, and they adjust the measurements accordingly.

As seen in Figure 1, Neptune has been getting brighter since around 1980; furthermore, infrared measurements of the planet since 1980 show that the planet has been warming steadily from 1980 to 2004. As they say on Neptune, global warming has become an inconvenient truth. But with no one to blame, Hammel and Lockwood explored how variations in the output of the Sun might control variations in the brightness of Neptune.

What would seem so simple statistically is complicated by the degrees of freedom in the various time series which is related to the serial correlation in the data (e.g., next year’s value is highly dependent on this year’s value). Nonetheless, they find that the correlation coefficient between solar irradiance and Neptune’s brightness is near 0.90 (1.00 is perfect). The same relationship is found between the Earth’s temperature anomalies and the solar output. Hammel and Lockwood note “In other words, the Earth temperature values are as well correlated with solar irradiance (r = 0.89) as they are with Neptune’s blue brightness (|r| > 0.90), assuming a 10-year lag of the Neptune values.” The temporal lag is needed to account for the large mass of Neptune that would require years to adjust to any changes in solar output.

Hammel and Lockwood conclude that “In summary, if Neptune’s atmosphere is indeed responding to some variation in solar activity in a manner similar to that of the Earth albeit with a temporal lag” then “Neptune may provide an independent (and extraterrestrial) locale for studies of solar effects on planetary atmospheres.”

Hammel, H. B., and G. W. Lockwood, 2007. Suggestive correlations between the brightness of Neptune, solar variability, and Earth’s temperature, Geophysical Research Letters

FINALLY!!!!!! SOMEONE WITH A BRAIN!!............ its the suns gravitational field flipping, fucks things up and solar flares go insane. and well you know the rest.