Seismotectonic study of the Fergana region (Southern Kyrgyzstan): distribution and kinematics of local seismicity

We present new seismicity and focal-mechanism data for the Fergana basin and surrounding mountain belts in western Kyrgyzstan from a temporary local seismic network. A total of 210 crustal earthquakes with hypocentral depths shallower than 25 km were observed during a 12-month period in 2009/2010. The hypocenter distribution indicates a complex net of seismically active structures. The seismicity derived in this study is mainly concentrated at the edges of the Fergana basin, whereas the observed rate of seismicity within the basin is low. The seismicity at the dominant tectonic feature of the region, the Talas-Fergana fault, is likewise low, so the fault seems to be inactive or locked. To estimate the uncertainties of earthquake locations derived in this study, a strong explosion with known origin time and location is used as a ground truth calibration event which suggests a horizontal and vertical accuracy of about 1 km for our relocations. We derived 35 focal mechanisms using first motion polarities and retrieved a set of nine moment tensor solutions for earthquakes with moment magnitude (Mw) ranging from 3.3 to 4.9 by waveform inversion. The solutions reveal both thrust and strike-slip mechanisms compatible with a NW-SE direction of compression for the Fergana region. Two previously unknown tectonic structures in the Fergana region could be identified, both featuring strike-slip kinematics. The combined analysis of the results derived in this study allowed a detailed insight into the currently active tectonic structures and their kinematics where little information had previously been available

Chapter 9: Aquatic Macroinvertebrates, Section A: Aquatic Macroinvertebrates (Exclusive of Mosquitoes)

Final Report. Excerpt (Chapter 9, Section A) from The Des Plaines River Wetlands Demonstration Project, Volume II, Baseline Survey, edited by Donald L. Hey and Nancy S. PhilippiReport issued on: October 1985INHS Technical Report prepared for Wetlands Research, Inc

The Ursinus Weekly, October 30, 1950

Four fraternities institute rushing in first semester • Dr. Miller speaks to IRC on value of United Nations • Forum to present English economist next Monday night • Junior class to sponsor Shipwreck Ball Friday • Omwake goes to Virginia • Sportsmen meet in gym • Masquerade postponed • MSGA takes steps toward setting up dorm government • Discussion of domestic and political problems features rally • Sororities on campus open annual week of rushing • IRC to sponsor John C. Kunkel at open forum • Red Cross unit sets up five groups on campus • Philadelphia doctor presents program at pre-med meeting • Yost to present reading • Bud Buchanan is official doughnut-maker • Antiques are prime hobby of Mrs. Donald Helfferich • Outstanding Ursinus graduate honored at recent Pennsylvania week luncheon • Committee heads further work for Dusty Halo • Canterbury Club sponsors series of talks on marriage • Chesterfield announces contest for campus photographers • Y to present series of speakers in lieu of Emphasis Week • Alumnus awarded doctorate by Drew on Founders Day • MSGA fills two posts; Kern, Rearick selected • French Club to present program November 1 at Studio Cottage • Hockey team falls to Bryn Mawr, 2-1; JV Belles tie, 2-2 • F & M to provide strong opposition for Bruin eleven • Bears beat Seahawks 25-6 to continue surge: Fischer paces Grizzlies with long scoring runs • Soccer squad drops pair of decisions to Lincoln and Swarthmore booters • Belles get 5-0 win at William and Mary • Albright registers big 17-40 victory over Bear Harriers • Philadelphia Orchestra to give concerts at Academy of Music • Bachman talks at vespershttps://digitalcommons.ursinus.edu/weekly/1550/thumbnail.jp

Observation of mesospheric air inside the arctic stratospheric polar vortex in early 2003

During several balloon flights inside the Arctic polar vortex in early 2003, unusual trace gas distributions were observed, which indicate a strong influence of mesospheric air in the stratosphere. The tuneable diode laser (TDL) instrument SPIRALE (Spectroscopie InFrarouge par Absorption de Lasers Embarqués) measured unusually high CO values (up to 600 ppb) on 27 January at about 30 km altitude. The cryosampler BONBON sampled air masses with very high molecular Hydrogen, extremely low SF6 and enhanced CO values on 6 March at about 25 km altitude. Finally, the MIPAS (Michelson Interferometer for Passive Atmospheric Sounding) Fourier Transform Infra-Red (FTIR) spectrometer showed NOy values which are significantly higher than NOy* (the NOy derived from a correlation between N2O and NOy under undisturbed conditions), on 21 and 22 March in a layer centred at 22 km altitude. Thus, the mesospheric air seems to have been present in a layer descending from about 30 km in late January to 25 km altitude in early March and about 22 km altitude on 20 March. We present corroborating evidence from a model study using the KASIMA (KArlsruhe Simulation model of the Middle Atmosphere) model that also shows a layer of mesospheric air, which descended into the stratosphere in November and early December 2002, before the minor warming which occurred in late December 2002 lead to a descent of upper stratospheric air, cutting of a layer in which mesospheric air is present. This layer then descended inside the vortex over the course of the winter. The same feature is found in trajectory calculations, based on a large number of trajectories started in the vicinity of the observations on 6 March. Based on the difference between the mean age derived from SF6 (which has an irreversible mesospheric loss) and from CO2 (whose mesospheric loss is much smaller and reversible) we estimate that the fraction of mesospheric air in the layer observed on 6 March, must have been somewhere between 35% and 100%

The Ursinus Weekly, December 4, 1950

Gillespie to play at Friday night senior formal • Men students cast 107-71 vote against dorm amendment • Music organizations to present Messiah in Bomberger chapel Thursday night • Y Commissions to meet; PAC plans Xmas party • Response to WSSF is disappointing; Receipts total $350 • Critic hails Angel Street as vehicle for superb thespian dramatic acting • Hungarian to address Tuesday night Forum • Twelve to become Rosicrucians • Yule traditions dominate ensuing campus activities • Bloodmobile to be at Trinity church Thursday morning • 26 are accepted by local chapter of Pi Gamma Mu • Cafe Pigalle to return to gym Saturday night • Mary MacPherson chosen May Queen; Marge Paynter named pageant manager • Editorial: Dynamic force • WSGA notes • Delta Pi Sigma welcomes ten off-campus men • English Club admits members • Revived rec center attracts many • 45 future teachers approach termination of tribulation • IRC hears attorney speak on problems of western nations • Ruby schedules photos, pushes subscriptions • Pigskin parade • Bears top textile 64-50 in court season inaugural • Six close careers on soccer squad • Derr deadlocks Albright 6-6 • Four senior girls play hockey finale • Grid player scans all-state selections • Ursinus grid aggregation suffers loss of twelve graduating upper classmen • Penn triumphs 3-1 over Ursinus girls • Reid Watson became football manager when injury benched former grid star • Messiah reputation stems from mastery of simple techniques • Eight teams compete in debate tournament • Chess team loses • Kershner does dialect in fourth lit readinghttps://digitalcommons.ursinus.edu/weekly/1554/thumbnail.jp

The Ursinus Weekly, November 13, 1950

Fraternities fete, bid men during week of rushing • First movies of year, Little Men, Great Guns, to be shown on Friday • Debaters to oppose Swarthmore varsity • Lantern asks students for Fall issue material • Herbsleb to address IRC Tuesday on international law topic • Chi Alpha to meet Tuesday • 51\u27ers assume commercial name • Smith tells Forum of status of Britain in trade, economy • Ruby launches campaigns for photography and selling • Student authored, produced Dusty Halo receives plaudits • YM-YW conducts WSSF and toy-clothing drives • Harris stresses need of developing maturity in religious matters • Dorm at 724 Main wins spirit trophy • Sophs to send gift to injured classmate • Big Sisters hold party • Editorials: Case against apathy; Challenge to our intellect • Class idiosyncrasies bared • Scribe pens WSGA notes • Drum majorettes use many maneuvers, combine long experience and ingenuity • Committee heads announced for Curtain Club Fall production • MSGA to cut mealtime announcements, substitute rebuilt outdoor bulletin board • Newman Club holds banquet • Beaver falls 3-2 to hockey squad; Boyd paces team • Jay-Vees triumph 6-1 over Beaver JV squad • Bruins to oppose Crusaders eleven at Selinsgrove • Grizzlies bow 3-0 to Lehigh booters • Undefeated Derr cops intramural grid title • Panthers build early lead to conquer Bruins 13-6 • St. Joseph\u27s takes cross-country meet • Cheer and comfort for the weary, tale of mid-semester\u27s evil birth • Weekly sports poll reveals majority wants powerhouse intercollegiate teamhttps://digitalcommons.ursinus.edu/weekly/1552/thumbnail.jp