NOTES ON SOME TROPICAL NOCTUIDS IN NORTH AMERICA

1937 ◽  
Vol 69 (10) ◽  
pp. 218-219
Author(s):  
A. Glenn Richards
Keyword(s):  
United States ◽  
North America ◽  
North American ◽  
Southern United States ◽  
Tropical Species ◽  
The North

The following notes are written to place on record certain authentic records of tropical species taken in the southern United States. Most of these species are not at present recorded in the North American lists. Unless otherwise stated all specimens are in the author's collection.

scholarly journals Verification of Extratropical Cyclones within the NCEP Operational Models. Part I: Analysis Errors and Short-Term NAM and GFS Forecasts

2009 ◽  
Vol 24 (5) ◽  
pp. 1173-1190 ◽  
Author(s):  
Michael E. Charles ◽  
Brian A. Colle
Keyword(s):  
United States ◽  
North America ◽  
North American ◽  
Eastern Pacific ◽  
Extratropical Cyclones ◽  
Global Forecast System ◽  
Eastern United States ◽  
Forecast System ◽  
Short Term ◽  
The North

Abstract This paper verifies extratropical cyclones around North America and the adjacent oceans within the National Centers for Environmental Prediction (NCEP) Global Forecast System (GFS) and North American Mesoscale (NAM) models during the 2002–07 cool seasons (October–March). The analyzed cyclones in the Global Forecast System (GFS) model, North American Mesoscale (NAM) model, and the North American Regional Reanalysis (NARR) were also compared against sea level pressure (SLP) observations around extratropical cyclones. The GFS analysis of SLP was clearly superior to the NAM and NARR analyses. The analyzed cyclone pressures in the NAM improved in 2006–07 when its data assimilation was switched to the Gridpoint Statistical Interpolation (GSI). The NCEP GFS has more skillful cyclone intensity and position forecasts than the NAM over the continental United States and adjacent oceans, especially over the eastern Pacific, where the NAM has a large positive (underdeepening) bias in cyclone central pressure. For the short-term (0–60 h) forecasts, the GFS and NAM cyclone errors over the eastern Pacific are larger than the other regions to the east. There are relatively large biases in cyclone position for both models, which vary spatially around North America. The eastern Pacific has four to eight cyclone events per year on average, with errors >10 mb at hour 48 in the GFS; this number has not decreased in recent years. There has been little improvement in the 0–2-day cyclone forecasts during the past 5 yr over the eastern United States, while there has been a relatively large improvement in the cyclone pressure predictions over the eastern Pacific in the NAM.

scholarly journals The North American Lightning Detection Network (NALDN)—Analysis of Flash Data: 2001–09

2011 ◽  
Vol 139 (5) ◽  
pp. 1305-1322 ◽  
Author(s):  
Richard E. Orville ◽  
Gary R. Huffines ◽  
William R. Burrows ◽  
Kenneth L. Cummins
Keyword(s):  
United States ◽  
North America ◽  
North American ◽  
The United States ◽  
The North ◽  
Lightning Detection ◽  
Geographical Regions ◽  
Positive Peak ◽  
The U.S ◽  
Cg Lightning

Cloud-to-ground (CG) lightning data have been analyzed for the years 2001–09 for North America, which includes Alaska, Canada, and the lower 48 U.S. states. Flashes recorded within the North American Lightning Detection Network (NALDN) are examined. No corrections for detection efficiency variability are made over the 9 yr of the dataset or over the large geographical area comprising North America. There were network changes in the NALDN during the 9 yr, but these changes have not been corrected for nor have the recorded data been altered in any way with the exception that all positive lightning reports with peak currents less than 15 kA have been deleted. Thus, the reader should be aware that secular changes are not just climatological in nature. All data were analyzed with a spatial resolution of 20 km. The analyses presented in this work provide a synoptic view of the interannual variability of lightning observations in North America, including the impacts of physical changes in the network during the 9 yr of study. These data complement and extend previous analyses that evaluate the U.S. NLDN during periods of upgrade. The total (negative and positive) flashes for ground flash density, the percentage of positive lightning, and the positive flash density have been analyzed. Furthermore, the negative and positive first stroke peak currents and the flash multiplicity have been examined. The highest flash densities in Canada are along the U.S.–Canadian border (1–2 flashes per square kilometer) and in the United States along the Gulf of Mexico coast from Texas through Florida (exceeding 14 flashes per square kilometer in Florida). The Gulf Stream is “outlined” by higher flash densities off the east coast of the United States. Maximum annual positive flash densities in Canada range primarily from 0.01 to 0.3 flashes per square kilometer, and in the United States to over 0.5 flashes per square kilometer in the Midwest and in the states of Louisiana and Mississippi. The annual percentage of positive lightning to ground varies from less than 2% over Florida to values exceeding 25% off the West Coast, Alaska, and the Yukon. A localized maximum in the percentage of positive lightning in the NALDN occurs in Manitoba and western Ontario, just north of North Dakota and Minnesota. When averaged over North America, first stroke negative median peak currents range from 19.8 kA in 2001 to 16.0 kA in 2009 and for all years, average 16.1 kA. First stroke positive median peak currents range from a high of 29.0 kA in 2008 and 2009 to a low of 23.3 kA in 2003 with a median of 25.7 kA for all years. There is a relatively sharp transition from low to high median negative peak currents along the Gulf and Atlantic coasts of the United States. No sharp transitions are observed for the median positive peak currents. Relatively lower positive peak currents occur throughout the southeastern United States. The highest values of mean negative multiplicity exceed 3.0 strokes per flash in the NALDN with some variation over the 9 yr. Lower values of mean negative multiplicity occur in the western United States. Positive flash mean multiplicity is slightly higher than 1.1, with the highest values of 1.7 observed in the southwestern states. As has been noted in prior research, CG lightning has significant variations from storm to storm as well as between geographical regions and/or seasons and, consequently, a single distribution for any lightning parameter, such as multiplicity or peak current, may not be sufficient to represent or describe the parameter.

scholarly journals A Surface Wind Extremes (“Wind Lulls” and “Wind Blows”) Climatology for Central North America and Adjoining Oceans (1979–2012)

2015 ◽  
Vol 54 (3) ◽  
pp. 643-657 ◽  
Author(s):  
Jonny W. Malloy ◽  
Daniel S. Krahenbuhl ◽  
Chad E. Bush ◽  
Robert C. Balling ◽  
Michael M. Santoro ◽  
...  
Keyword(s):  
United States ◽  
North America ◽  
North American ◽  
North Atlantic Ocean ◽  
Grid Point ◽  
Surface Wind ◽  
Wind Speeds ◽  
The North ◽  
Anomalous Wind

AbstractThis study explores long-term deviations from wind averages, specifically near the surface across central North America and adjoining oceans (25°–50°N, 60°–130°W) for 1979–2012 (408 months) by utilizing the North American Regional Reanalysis 10-m wind climate datasets. Regions where periods of anomalous wind speeds were observed (i.e., 1 standard deviation below/above both the long-term mean annual and mean monthly wind speeds at each grid point) were identified. These two climatic extremes were classified as wind lulls (WLs; below) or wind blows (WBs; above). Major findings for the North American study domain indicate that 1) mean annual wind speeds range from 1–3 m s−1 (Intermountain West) to over 7 m s−1 (offshore the East and West Coasts), 2) mean durations for WLs and WBs are high for much of the southeastern United States and for the open waters of the North Atlantic Ocean, respectively, 3) the longest WL/WB episodes for the majority of locations have historically not exceeded 5 months, 4) WLs and WBs are most common during June and October, respectively, for the upper Midwest, 5) WLs are least frequent over the southwestern United States during the North American monsoon, and 6) no significant anomalous wind trends exist over land or sea.

Trametes gibbosa (Basidiomycetes, Polyporales) in the USA and Canada

2007 ◽  
Vol 85 (3) ◽  
pp. 342-346 ◽  
Author(s):  
J. Kout ◽  
J. Vlasák
Keyword(s):  
United States ◽  
Czech Republic ◽  
North America ◽  
Mating Type ◽  
North American ◽  
Eastern North America ◽  
The Czech Republic ◽  
The North ◽  
The Usa ◽  
First Time

The polypore Trametes gibbosa (Pers.) Fries, common in Europe and Asia, is reported from eastern North America for the first time. Single basidiospore cultures from Pennsylvania, United States, and Quebec, Canada, were paired with each other and with cultures from the Czech Republic. The North American intercollection crosses were 60% compatible and 100% compatible with the Czech cultures. All the crosses among the Czech cultures were 100% compatible. The recent introduction of T. gibbosa to North America is suggested as a possible explanation for the limited number of mating-type alleles and subsequent incompatibility among the North American cultures.

scholarly journals Impacts of the Atlantic Multidecadal Variability on North American Summer Climate and Heat Waves

2018 ◽  
Vol 31 (9) ◽  
pp. 3679-3700 ◽  
Author(s):  
Yohan Ruprich-Robert ◽  
Thomas Delworth ◽  
Rym Msadek ◽  
Frederic Castruccio ◽  
Stephen Yeager ◽  
...  
Keyword(s):  
United States ◽  
North Atlantic ◽  
North American ◽  
Heat Waves ◽  
Southern United States ◽  
Atlantic Multidecadal Variability ◽  
Multidecadal Variability ◽  
Northern Mexico ◽  
The North ◽  
North American Climate

The impacts of the Atlantic multidecadal variability (AMV) on summertime North American climate are investigated using three coupled global climate models (CGCMs) in which North Atlantic sea surface temperatures (SSTs) are restored to observed AMV anomalies. Large ensemble simulations are performed to estimate how AMV can modulate the occurrence of extreme weather such as heat waves. It is shown that, in response to an AMV warming, all models simulate a precipitation deficit and a warming over northern Mexico and the southern United States that lead to an increased number of heat wave days by about 30% compared to an AMV cooling. The physical mechanisms associated with these impacts are discussed. The positive tropical Atlantic SST anomalies associated with the warm AMV drive a Matsuno–Gill-like atmospheric response that favors subsidence over northern Mexico and the southern United States. This leads to a warming of the whole tropospheric column, and to a decrease in relative humidity, cloud cover, and precipitation. Soil moisture response to AMV also plays a role in the modulation of heat wave occurrence. An AMV warming favors dry soil conditions over northern Mexico and the southern United States by driving a year-round precipitation deficit through atmospheric teleconnections coming both directly from the North Atlantic SST forcing and indirectly from the Pacific. The indirect AMV teleconnections highlight the importance of using CGCMs to fully assess the AMV impacts on North America. Given the potential predictability of the AMV, the teleconnections discussed here suggest a source of predictability for the North American climate variability and in particular for the occurrence of heat waves at multiyear time scales.

scholarly journals THE EFFECT OF THE GLACIAL EPOCH UPON THE DISTRIBUTION OF INSECTS IN NORTH AMERICA

1875 ◽  
Vol 7 (9) ◽  
pp. 164-167
Author(s):  
Aug. R. Grote
Keyword(s):  
United States ◽  
North America ◽  
North American ◽  
The United States ◽  
American Continent ◽  
North American Continent ◽  
The North ◽  
Glacial Epoch

From the condition of an hypothesis the glacial epoch has been elevated into that of a theory by the explanations it has afforded to a certain class of geological phenomena. The present paper endeavors to show that certain zoological facts are consistent with the presence, during past times, of a vast progressive field of ice, which, in its movement from north to south, gradually extended over large portions of the North American continent. These facts, in the present instance, are furnished by a study of our Lepidoptera, or certain kinds of butterflies and moths now inhabiting the United States and adjacent territories.

Observed Local and Remote Influences of Vegetation on the Atmosphere across North America Using a Model-Validated Statistical Technique That First Excludes Oceanic Forcings*

2014 ◽  
Vol 27 (1) ◽  
pp. 362-382 ◽  
Author(s):  
Fuyao Wang ◽  
Michael Notaro ◽  
Zhengyu Liu ◽  
Guangshan Chen
Keyword(s):  
United States ◽  
North America ◽  
Statistical Method ◽  
North American ◽  
Climate Model ◽  
Statistical Technique ◽  
Eastern United States ◽  
Climate System Model ◽  
The North ◽  
Vegetation Impact

Abstract The observed local and nonlocal influences of vegetation on the atmosphere across North America are quantified after first removing the oceanic impact. The interaction between vegetation and the atmosphere is dominated by forcing from the atmosphere, making it difficult to extract the forcing from vegetation. Furthermore, the atmosphere is not only influenced by vegetation but also the oceans, so in order to extract the vegetation impact, the oceanic forcing must first be excluded. This study identified significant vegetation impact in two climatically and ecologically unique regions: the North American monsoon region (NAMR) and the North American boreal forest (NABF). A multivariate statistical method, a generalized equilibrium feedback assessment, is applied to extract vegetation influence on the atmosphere. The statistical method is validated using a dynamical experiment for the NAMR in a fully coupled climate model, the Community Climate System Model, version 3.5 (CCSM3.5). The observed influence of NAMR vegetation on the atmosphere peaks in June–August and is primarily attributed to both roughness and hydrological feedbacks. Elevated vegetation amount increases evapotranspiration and surface roughness, which leads to a local decline in sea level pressure and generates an atmospheric teleconnection response. This atmospheric response leads to moister and cooler (drier and warmer) conditions over the western and central United States (Gulf states). The observed influence of the NABF on the atmosphere peaks in March–May, related to a thermal feedback. Enhanced vegetation greenness increases the air temperature locally. The atmosphere tends to form a positive Pacific–North American (PNA)-like pattern, and this anomalous atmospheric circulation and associated moisture advection lead to moister (drier) conditions in the western (eastern) United States.

scholarly journals North American Xyleborini north of Mexico: a review and key to genera and species (Coleoptera, Curculionidae, Scolytinae)

ZooKeys ◽  
2018 ◽  
Vol 768 ◽  
pp. 19-68 ◽  
Author(s):  
Demian F. Gomez ◽  
Robert J. Rabaglia ◽  
Katherine E. O. Fairbanks ◽  
Jiri Hulcr
Keyword(s):  
United States ◽  
New Species ◽  
North America ◽  
North American ◽  
Native Species ◽  
Ambrosia Beetles ◽  
The North ◽  
Successful Group ◽  
Bark And Ambrosia Beetles

Bark and ambrosia beetles (Scolytinae) are the most successful group of invasive wood borers worldwide, and the most invasive among them are species in the tribe Xyleborini. This haplodiploid, highly inbred, fungus-farming group is represented by 30 non-native species in North America, of which at least five are serious pests. The few identification resources for Xyleborini that exist are becoming outdated due to new species arrivals and nomenclatural changes. Here we present a new comprehensive key to Xyleborini currently known from the continental United States. Compared to the previous key, the following species have been added to the North American fauna:Ambrosiodmusminor(Stebbing),Ambrosiophilusnodulosus(Eggers),AnisandrusmaicheKurentsov,Coptoboruspseudotenuis(Schedl),Cyclorhipidionfukiense(Eggers),DryocoetoidesreticulatusAtkinson,Dryoxylononoharaense(Murayama),Euwallaceainterjectus(Blandford),Xyleborinusandrewesi(Blandford),Xyleborinusartestriatus(Eichhoff),Xyleborinusoctiesdentatus(Murayama),XyleborusbispinatusEichhoff,XyleborusseriatusBlandford,XyleborusspinulosusBlandford, andXylosandrusamputatus(Blandford).

Checklist of the Arctiidae (Lepidoptera: Insecta) of the continental United States and Canada

Zootaxa ◽  
2006 ◽  
Vol 1299 (1) ◽  
pp. 1 ◽  
Author(s):  
DOUGLAS C. FERGUSON ◽  
PAUL A. OPLER
Keyword(s):  
United States ◽  
North America ◽  
North American ◽  
New Combinations ◽  
The North ◽  
Arctia Caja ◽  
First Time ◽  
North America North

A checklist of the 282 species of Arctiidae of North America north of Mexico is presented. The list reflects changes in taxonomy and additions to the fauna since publication of the Checklist of the Moths of America North of Mexico in 1983. Pagara Walker, 1856 and Neoplynes Hampson, 1900 are transferred from Lithosiinae to Arctiinae. Lectotypes are designated for Arctia incorrupta Henry Edwards, 1881, and Arctia incorrupta Henry Edwards, 1881. Two new combinations are proposed: Cisthene tenuifascia schwarziorum Dyar, 1899, and Trocodima fuscipes (Grote, 1883). Arachnis citra verna Barnes & McDunnough, 1918 is proposed as a revised status. “Afrida” exegens Dyar, 1922 is reported for North America for the first time, but its subfamily and generic placement are uncertain. Clemensia patella (Druce, 1885) is raised from synonymy with Clemensia albata Packard, 1864. Seventeen taxa are designated as new or revised synonyms: Arctia oithona Strecker, 1878 (= Grammia phyllira (Drury, 1773)); Arctia rectilinea French, 1879 (= Grammia phyllira (Drury, 1773)); Arctia conspicua Stretch, 1906 (= Grammia phyllira (Drury, 1773)); Arctia quadranotata Strecker, 1880 (= Grammia f-pallida (Strecker, 1878)); Apantesis sociata Barnes & McDunnough, 1910 (= Grammia f-pallida Strecker, 1878); Apantesis moierra Dyar, 1914 (= Grammia f-pallida (Strecker, 1878)); Apantesis mormonica Neumoegen, 1885 (= Notarctia arizoniensis (Stretch)); Arctia caja parva Rothschild, 1910 (= Arctia opulenta (Henry Edwards, 1881)); Kodiosoma otero Barnes, 1907 (= Kodiosoma fulva Stretch, 1872); Estigmene arizonensis Rothschild, 1910 (= Estigmene albida Stretch, 1874); Ecpantheria denudata Slosson, 1888 (= Hypercompe scribonia (Stoll, [1790])); Arachnis hampsoni Dyar, 1903 (= Arachnis picta maia Ottolengui, 1896); Arachnis midas Barnes & Lindsey, 1921 (= Arachnis citra verna Barnes & McDunnough, 1918); Arachnis apachea Clarke, 1941 (= Arachnis citra verna Barnes & McDunnough, 1918); Euchaetes pudens (Henry Edwards, 1882) (= Cycnia collaris (Fitch, 1856)); Arctia sciurus Boisduval, 1869 (= Cycnia tenera Hübner, 1827); Pygarctia albistrigata Barnes & McDunnough, 1913 (= Pygarctia pterygostigma Dyar, 1909); and Microdota hemiceras Forbes, 1931 (= Trocodima fuscipes (Grote, 1883)). Halysidota underwoodi Rothschild and H. fuliginosa Rothschild are removed from the North American list because their inclusion was based on

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