Seminars for Scientists

Our Fall seminar series began on August 31th.

We are actively seeking speakers for our Fall 2017 seminar series, if you or a colleague would like to give a seminar please contact the Seminar Organizers Justin Deighan or Maria Usanova (firstname.lastname at lasp.colorado.edu). LASP seminars are held every Thursday at 4:00 PM in the SPSC building, generally in room W120. Refreshments are served at 3:45. All LASP science seminars are open to visitors and our colleagues in other departments.

Current Schedule:

Thursday, Nov 30, 2017
Thursday, Nov 09, 2017
Thursday, Nov 02, 2017
Thursday, Oct 26, 2017
Thursday, Oct 19, 2017
Thursday, Oct 12, 2017

Current Schedule (expanded):

December
Dec
7

GIC research in New Zealand: Modeling plus analysis of 17 years of observations

Speaker:  Tim Divett and Daniel H. Mac Manus (University of Otago, New Zealand)
Date & Time:  Thursday, Dec 07, 2017 ,  4:00 PM
Location:  SPSC W120
Abstract:

This joint New Zealand-United Kingdom project aims to investigate the risk posed by Geomagnetically Induced Currents (GIC) to New Zealand’s South Island electrical transmission network. GIC in New Zealand’s electrical network are caused by space weather storms. During very large space weather storms GIC can cause significant damage to electrical transformers. As an example, after… Read more »

November
Nov
30

TBD

Speaker:  Lars Kalnajs (LASP)
Date & Time:  Thursday, Nov 30, 2017 ,  4:00 PM
Location:  SPSC W120
Abstract:

TBD

November
Nov
16

Large-scale ionospheric and magnetospheric effects by Mars crustal magnetic anomalies

Speaker:  Xiaohua Fang (LASP)
Date & Time:  Thursday, Nov 16, 2017 ,  4:00 PM
Location:  SPSC W120
Abstract:

TBD

November
Nov
9

TBD

Speaker:  Ed Thiemann (LASP)
Date & Time:  Thursday, Nov 09, 2017 ,  4:00 PM
Location:  SPSC W120
Abstract:

TBD

November
Nov
2

TBD

Speaker:  Odele Coddington (LASP)
Date & Time:  Thursday, Nov 02, 2017 ,  4:00 PM
Location:  SPSC W120
Abstract:

TBD

October
Oct
26

TBD

Speaker:  Jan Deca (LASP)
Date & Time:  Thursday, Oct 26, 2017 ,  4:00 PM
Location:  SPSC W120
Abstract:
October
Oct
19

TBD

Speaker:  Xiangning Chu (LASP)
Date & Time:  Thursday, Oct 19, 2017 ,  4:00 PM
Location:  SPSC W120
Abstract:

TBD

October
Oct
12

TBD

Speaker:  Xu Wang (LASP)
Date & Time:  Thursday, Oct 12, 2017 ,  4:00 PM
Location:  SPSC W120
Abstract:

TBD

October
Oct
5

Cloud, Dust and Ozone Retrieval Using SPICAM/UV Nadir

Speaker:  Yannick Williame (Belgian Institute for Space Aeronomy)
Date & Time:  Thursday, Oct 05, 2017 ,  4:00 PM
Location:  SPSC W120
Abstract:

We have developed a retrieval method in order to analyse nadir measurements of the SPICAM/UV instrument on board the Mars-Express orbiter. The UV spectrometer has provided measurements during 11 years with a near pole-to-pole orbit that allows to cover latitudes up to 86°. We have used the 220-290 nm range to deduce the quantities of… Read more »

September
Sep
28

The Martian Upper Atmosphere as Seen by Imaging Ultraviolet Spectrograph (IUVS) Onboard MAVEN

Speaker:  Sonal Jain (LASP)
Date & Time:  Thursday, Sep 28, 2017 ,  4:00 PM
Location:  SPSC W120
Abstract:

The Imaging Ultraviolet Spectrograph (IUVS) on board MAVEN observes Mars in far and mid ultraviolet (110-340 nm) with unique scanning and pointing capabilities, which are optimized for airglow studies. The ultraviolet airglow emissions observed on Mars are a perfect tracer for the processes occurring in the emitting region of the atmosphere (100-200 km) and provide basic information about atmospheric composition (and its structure), and give insight into the dynamics, energetics, and physics and chemistry of the thermosphere. In this presentation, I will talk about an overview of scientific results obtained by IUVS dayglow measurements, including (1) spatial/temporal distribution of major MUV and FUV emissions and their seasonal variability; (2) the seasonal variation of thermosphere temperatures inferred from dayglow measurements; (3) the effect of solar EUV flux (including the ~27-day solar rotation) and heliocentric distance on upper atmosphere temperature structure (4) Effect of transient events (e.g., flares and dust storms) on the Martian thermosphere.

September
Sep
14

Building the GOES-R Series Satellites and Images from GOES-16 On-Orbit Operations

Speaker:  Sue Linch (Lockheed Martin Space Systems)
Date & Time:  Thursday, Sep 14, 2017 ,  4:00 PM
Location:  SPSC W120
Abstract:

The GOES-R series of satellites is a giant leap forward in our nation’s weather prediction capabilities.  With GOES-16 in orbit for almost a year, GOES-S launch coming in spring of 2018, and GOES-T almost built and ready for environments, we reflect on the difficulties in building a large, complex communications bird cleverly disguised as a science satellite.  While the capabilities of this spacecraft were well advertised, the imagery has stunned us all.  Please join us to see how GOES-16 was built and launched and images from the first 9 months in orbit.

September
Sep
7

Akatsuki Rises from the Dead to Explore the Depths of Hell

Speaker:  Kevin McGouldrick (LASP)
Date & Time:  Thursday, Sep 07, 2017 ,  4:00 PM
Location:  SPSC W120
Abstract:

In a first for robotic planetary exploration, the Akatsuki spacecraft successfully achieved Venus Orbit Insertion on its second attempt on 7 December 2015, using only its attitude control thrusters. The Akatsuki spacecraft was designed and built by the Japanese Aerospace Exploration Agency and Institute for Space and Astrophysical Science to answer key questions about the Venusian atmosphere. In this talk, I will present some of the early results from the Akatsuki mission, as well as provide my own personal view of what the success of this mission means for the future of planetary astronomy.

August
Aug
17

Martian Mesospheric Clouds Observed by MAVEN/IUVS: Thermal Tides Coupled to the Upper Atmosphere

Speaker:  Michael H. Stevens (Naval Research Laboratory)
Date & Time:  Thursday, Aug 17, 2017 ,  4:00 PM
Location:  SPSC W120
Abstract:

The Martian mesospheric cloud season typically extends for about one Earth year (about half a Martian year) centered around Martian aphelion. Although designed to measure the Martian dayglow, the MAVEN IUVS instrument also scans the limb down to 60 km where solar scattered light indicates the presence of detached mesospheric clouds. Over 100 scans containing mesospheric clouds are identified from October to December 2015, near the middle of the mesospheric cloud season. The clouds are preferentially distributed to the equator and their longitudinal distribution shows a strong wave three component suggesting forcing from a non-migrating tide. Preliminary observations from the current (2017) cloud season complementing the 2015 results will also be shown.

August
Aug
17

Flux Transfer Events and Kelvin-Helmholtz Waves at Earth’s Magnetopause

Speaker:  Jimmy Raeder (University of New Hampshire)
Date & Time:  Thursday, Aug 17, 2017 ,  4:00 PM
Location:  SPSC W120
Abstract:

Flux Transfer Events (FTEs) occur as the result of transient reconnection at the magnetopause. Numerous models have been proposed to explain the formation and subsequent motion of FTEs. Here, we use OpenGGCM simulations of the magnetosphere to show that (a) FTEs form by sequential multiple X-line reconnection, i.e., as a FTE forms, a new X-line… Read more »