Seminars for Scientists
Spring 2013 Schedule:
1/17/2013 Seminar – TBD
Speaker: | Scott McIntosh | |||
Date & Time: | 1/17/2013 , 4:00 PM | Location: | SPSC N100 (Note alternate room) | |
Abstract: |
TBD |
1/24/2013 Seminar – TBD
Speaker: | Dr. Xinlin Li | |||
Date & Time: | 1/24/2013 , 4:00 PM | Location: | SPSC W120 | |
Abstract: |
TBD |
1/25/2013 – SORCE Seminar
Speaker: | SORCE Scientists | |||
Date & Time: | 1/25/2013 , 4:00 PM | Location: | SPSC W120 | |
Abstract: |
Review of the SORCE mission accomplishments. |
Coronal Mass Ejections and Space Weather
Speaker: | David Webb (Boston College) | |||
Date & Time: | 1/31/2013 , 4:00 PM | Location: | SPSC W120 | |
Abstract: |
What are Coronal Mass Ejections (CMEs) and why are they important? CMEs have typically been observed in white light near the Sun by coronagraphs, recently those on the SOHO LASCO and STEREO missions. I will review our current knowledge of CMEs including their coronal and heliospheric properties. I will discuss their importance for space weather,… Read more » |
The Zodiacal Dust Cloud Populations at Saturn: an inventory from the Cassini-CDA point of view
Speaker: | Nicolas Altobelli (ESA) | |||
Date & Time: | 2/7/2013 , 4:00 PM | Location: | SPSC N100 (note alternate room) | |
Abstract: |
The analysis of different CDA subsystems data, acquired since SOI, reveals that the Saturnian system is permanently crossed by dust grains originating from the Interplanetary medium, as well as from the neighboring interstellar medium surrounding the Solar System. We observe two main types of particles: on the one hand, those with low injection velocity with… Read more » |
Thermosphere-Ionosphere Climate during the 2008-2009 Solar Cycle Minimum
Speaker: | Stan Solomon (NCAR) | |||
Date & Time: | 2/14/2013 , 4:00 PM | Location: | SPSC W120 | |
Abstract: |
Observations of the neutral thermosphere during the extended 2008-2009 solar minimum period found anomalously low density, implying that thermospheric temperature was also lower than usual for solar minimum. A variety of solar measurements and proxies indicated commensurately lower levels of solar extreme-ultraviolet (EUV) irradiance, although there remains considerable uncertainty concerning the magnitude of the reduction…. Read more » |
The Revolution in Planetary Science
Speaker: | James L. Green (NASA-HQ) | |||
Date & Time: | 2/21/2013 , 4:00 PM | Location: | SPSC W120 | |
Abstract: |
It has now been 50 years since NASA had launched its first successful planetary spacecraft. Virtually everything we knew about the solar system, up to that time, came from ground-based telescope observations or the analysis of meteorites. NASA has literally invented planetary science that has allowed us to reveal many of the wonders of the… Read more » |
2/28/2013 No Seminar
Speaker: | no seminar | |||
Date & Time: | 2/28/2013 , no seminar | Location: | no seminar | |
Abstract: |
no seminar |
3/7/2013 No Seminar
Speaker: | no seminar | |||
Date & Time: | 3/7/2013 , no seminar | Location: | no seminar | |
Abstract: |
no seminar |
Two Levels of Self-Organization in the Earth’s Climate System
Speaker: | Lev Maslov (Aims College) | |||
Date & Time: | March 14, 2013 , 4:00 PM | Location: | SPSC w120 | |
Abstract: |
The global, long-term temperature variations curve constructed from Antarctica ice-core project data is decomposed into two parts: the “auto-oscillation” part and the “convective” part. These two parts represent two different but tightly interconnected processes and, correspondingly, two different types of self-organization of the Earth’s climate system. The self-organization in the “auto-oscillation” component is the non-linear reaction of the Earth’s… Read more » |
3/14/2013 Seminar
Speaker: | Lev Maslov | |||
Date & Time: | 3/14/2013 , 4:00 PM | Location: | SPSC W120 | |
Abstract: |
The global, long-term temperature variations curve constructed from Antarctica ice-core project data is decomposed into two parts: the “auto-oscillation” part and the “convective” part. These two parts represent two different but tightly interconnected processes and, correspondingly, two different types of self-organization of the Earth’s climate system. The self-organization in the “auto-oscillation” component is the non-linear reaction of the Earth’s… Read more » |
3/21/2013 Seminar
Speaker: | TBD | |||
Date & Time: | 3/21/2013 , 4:00 PM | Location: | SPSC W120 | |
Abstract: |
TBD |
3/28/2013 SPRING BREAK – NO SEMINAR
Speaker: | no seminar | |||
Date & Time: | 3/28/2013 , no seminar | Location: | no seminar | |
Abstract: |
Spring Break – No Seminar |
4/4/2013 MESSENGER Observations of Mercury’s Magnetosphere
Speaker: | Catherine Johnson | |||
Date & Time: | 4/4/2013 , 4:00 PM | Location: | SPSC N100 | |
Abstract: |
The MESSENGER spacecraft has been in orbit around Mercury since March 2011. Magnetic field measurements taken by MESSENGER have yielded definitive evidence for a weak dipolar internal field, generated by dynamo action in Mercury’s core. The weak field, together with Mercury’s proximity to the sun, mean that Mercury’s magnetosphere is small and highly dynamic, responding… Read more » |
4/11/2013 Seminar
Speaker: | Keith Julien (CU) (Cancelled) | |||
Date & Time: | 4/11/2013 , 4:00 PM | Location: | SPSC W120 | |
Abstract: |
TBD |
4/18 seminar ARTEMIS Pick-up Ion Observations in the Terrestrial Magnetotail: Implications for the Lunar Neutral Exosphere
Speaker: | Andrew Poppe (UC-Berkeley) | |||
Date & Time: | 4/18/2013 , 4:00 PM | Location: | SPSC W120 | |
Abstract: |
The Acceleration, Reconnection, Turbulence, and Electrodynamics of Moon’s Interaction with the Sun (ARTEMIS) mission is a dual-probe plasma and fields mission currently in orbit around the Moon. Among its many scientific objectives is to study pick-up ions at the Moon, with the goal of understanding both pick-up ion production mechanisms, such as photo-ionization, sputtering and… Read more » |
4/25/2013 Migration of Saturn’s small moons and implications for theories of planet formation
Speaker: | Benjamin Bromley (University of Utah) | |||
Date & Time: | 4/25/2013 , 4:00 PM | Location: | SPSC W120 | |
Abstract: |
The radial motions of small moons in Saturn’s rings can provide excellent tests of satellite migration models. In theory, radial drifts arise from a torque exchange between these moons and ring particles. We predict that moons of radius 2–20 km in the A ring are massive enough to clear a gap in the ring, yet… Read more » |
5/2/2013 The Radiation Environment on Mars measured by RAD on MSL
Speaker: | Don Hassler (SwRI) | |||
Date & Time: | 5/2/2013 , 4:00 PM | Location: | SPSC W120 | |
Abstract: |
An important part of assessing present and past habitability of Mars is to understand and characterize “life limiting factors” on the surface, such as the radiation environment. Radiation exposure is also a major concern for future human missions and characterizing the radiation environment, both on the surface of Mars and inside the spacecraft during the… Read more » |
5/16/2013 Experimental Study of Vapor Released in Micrometeoroid Bombardment
Speaker: | Andrew Collette | |||
Date & Time: | May 16 , 4:00pm | Location: | SPSC N100 | |
Abstract: |
We present laboratory measurement of vapor produced by simulated micrometeoroid bombardment, with direct relevance to the study of surface-bounded exospheres around the Moon, Mercury and other solar system bodies. Exciting new in-situ observations from MESSENGER at Mercury, and the anticipation of results from LADEE at the Moon, have highlighted the uncertainty surrounding the role of… Read more » |
5/23/2013 What’s the big deal about Comet ISON?
Speaker: | Matthew Knight (Lowell Observatory) | |||
Date & Time: | May 23 , 4:00 pm | Location: | SPSC W120 | |
Abstract: |
Comet ISON (C/2012 S1) is a recently discovered sungrazing comet that will reach perihelion in November 2013 less than 2 solar radii from the Sun’s photosphere. While it is still more than 3.5 AU from the Sun and is currently relatively faint, it is predicted to become very bright near perihelion and has therefore gained… Read more » |