Open ARTS Community Workshop 2010

Presentations and pictures from the Open ARTS Community Workshop are now available on the workshop website. Thanks to all participants for their contributions.

2010-06-24 Oliver Lemke

Visiting scientist

We're glad to welcome back Viju John for his traditional yearly visit to Kiruna. He's joining us for the next two weeks. Great to have you here, Viju!

2010-06-23 Oliver Lemke

Collocations Paper Published

The collocations paper has been published in AMT. (Collocating satellite-based radar and radiometer measurements – methodology and usage examples).

2010-06-21 Gerrit Holl

CloudIce Proposal for ESA Earth Explorer 8

On June 1 I submitted the CloudIce mission proposal. Thanks to all who helped with this!

2010-06-03 Stefan Buehler

Atmlab 1.0.0 Release

Today we released Atmlab version 1.0.0, a collection of Matlab functions for interaction with the latest ARTS. The download is available on the ARTS Tools page.
For ARTS 1.0 users, a new Qpack maintenance release is available on the same page.

2010-06-03 Oliver Lemke

Collocations Paper Accepted

The collocations paper has been accepted for AMT and is now in press. (Collocating satellite-based radar and radiometer measurements – methodology and usage examples).

2010-06-02 Gerrit Holl

Ice Water Path paper in ACPD

2010-05-12 Salomon Eliasson

New Paper Published

The paper Variability of Indian summer monsoon in a new upper tropospheric humidity data set has been published in GRL.

2010-03-10 Oliver Lemke

Ice Water Path Paper is Submitted

The paper has been submitted to ACPD and is now under peer review. (Assessing Modelled Spatial Distributions of Ice Water Path using Satellite Data).

2010-03-09 Salomon Eliasson

Collocations Paper Published

The collocations paper has been published by AMTD and is now under peer review. (Collocating satellite-based radar and radiometer measurements – methodology and usage examples).

2010-02-27 Gerrit Holl

Master Thesis Defence

Simon Östman successfully defended his Master thesis last week. Congratulations, Simon!

2010-02-23 Oliver Lemke

Sundogs near Kiruna

This morning, the sunrise seen from Kiruna was accompanied by spectacular sun dogs.

2010-02-10 Gerrit Holl

SAT News RSS Feed

The news on our frontpage are now availabe as an RSS2 feed. You can subscribe to the feed by clicking the RSS icon in the location bar of your web browser or the link in the top right of this page.

2010-02-08 Oliver Lemke

Visiting Lecturer this Week

Hugh C. Pumphrey from the School of Geosciences at the University of Edinburgh is visiting us this week to hold a course on Inverse Theory.

2010-02-04 Oliver Lemke

ARTS Workshop

The Open ARTS Community Workshop will be held in Kristineberg, Sweden from June 7 to 10, 2010. For details, see the workshop homepage.

2010-01-29 Oliver Lemke

New Article Submitted to AMTD

We submitted a new manuscript to AMTD: "Collocating satellite-based radar and radiometer measurements – methodology and usage examples". Thanks to all co-authors and to all that have helped in other ways.

2010-01-29 Gerrit Holl

New Article Submitted to JGR

We submitted a new manuscript to JGR: " Comparing upper tropospheric humidity data from microwave satellite instruments and tropical radiosondes". Thanks to all co-authors and to all that have helped in other ways.

2010-01-29 Isaac Moradi

Annealing Paper Published

The annealing paper has been published by JQSRT. (Efficient Radiative Transfer Simulations for a Broadband Infrared Radiometer --- Combining a Weighted Mean of Representative Frequencies Approach with Frequency Selection by Simulated Annealing).

2010-01-12 Stefan Buehler

Automated ARTS Build

ARTS has now an automated build system which provides up-to-the-minute builds as well as an archive of previous versions.

2010-01-12 Oliver Lemke

PSCs

The PSC season is in full swing.

2010-01-11 Oliver Lemke

New Group Member

As of yesterday, we have a new group member, Jana Mendrok. She is going to work on ARTS and SMILES, specifically with ice clouds and their radiative effects. Welcome Jana!

2010-01-05 Stefan Buehler

LTU CloudIce Press Release

Nytt satellitprojekt leds av LTU i Kiruna

2009-12-07 Oliver Lemke

CloudIce Letter of Intent Submitted

I submitted the CloudIce LoI today. The pdf file can be found in Projects/CloudIce.

2009-11-30 Stefan Buehler

You can now find course material for the lecture "Clouds and Cloud Particles" here on the web.

2009-09-11 Stefan Buehler

I have just submitted a new manuscript to JQSRT: " Efficient Radiative Transfer Simulations for a Broadband Infrared Radiometer --- Combining a Weighted Mean of Representative Frequencies Approach with Frequency Selection by Simulated Annealing". Thanks to all co-authors and to all that have helped in other ways.

2009-08-27 Stefan Buehler

The AMT paper on
Validation of water vapour profiles (version 13) retrieved by the IMK/IAA scientific retrieval processor based on
full resolution spectra measured by MIPAS on board Envisat
has been published.

2009-07-27 Mathias Milz

A new revision of the UTH data set is available. It was extended to April 2009.

2009-06-26 Oliver Lemke

The GRL paper on Comparison of AIRS and AMSU-B monthly mean estimates of upper tropopsheric humidity has been published.

2009-06-16 Mathias Milz

Assistant Professor Position --- DEADLINE CLOSED ---

We are looking for a new assistant professor. For details, see the official job ad on the LTU homepage.

2009-04-07 Stefan Buehler

PhD Positions --- DEADLINE CLOSED ---

We are looking for new PhD students. For details, see the official job ad on the LTU homepage.

2009-03-31 Stefan Buehler

This morning the sun was greeting Kiruna with a beautiful Halo around it.

2009-03-25 Oliver Lemke

Hong's paper on a Scattering Database in the Millimeter and Submillimeter Wave Range of 100-1000 GHz for Nonspherical Ice Particles has been published in JGR.

2009-03-18 Oliver Lemke

Vetenskapsrådet Interview

An interview with Stefan is available on the Vetenskapsrådet webpage. [PDF file]

2009-02-25 Oliver Lemke

Radiosonde Dataset

The Seebor diverse radiosonde dataset with infrared emissivity and surface skin temperature is available here.

2009-02-23 Ajil Kottayil

CloudSat Collocations Dataset

A new dataset is available containing collocations between CloudSat and the AMSU, MHS and HIRS sensors on NOAA and MetOp satellites (documentation).

2009-02-23 Gerrit Holl

Having Fun in Kiruna at -33°C

If you find yourself in a place with a temperature below -30°C, grab a cup of hot water and throw it up in the air! Then see what happens...

2009-02-17 Oliver Lemke

ARTS 1.0.214 released

Resolved issues:

• AMI: Some matlab files were missing from the package. (P. Eriksson)
• Fix compilation with gcc 4.3. (O. Lemke)

2009-02-04 Oliver Lemke

New Group Members

We have a new assistant professor, who will work on in-situ measurements of ice particles. Welcome Thomas!

We also welcome Simon, who has joined the group as a master thesis student!

2009-01-20 Stefan Buehler

Visiting Scholar in January

Ken Libbrecht from Caltech is visiting us this month to teach about ice crystal growth and to hunt for snowflake pictures.

2009-01-08 Oliver Lemke

A new revision of the UTH data set is available. It was extended to December 2008 and contains a bug fix for deep convective clouds.

2009-01-07 Oliver Lemke

The Sun is going to rise very soon. Kiruna, 25 December 2008.

2008-12-25 Isaac Moradi

This season's first Polar Stratospheric Clouds arrived over Kiruna.

2008-12-19 Oliver Lemke

Events next Week

• Ajil K. S., our new PhD student will arrive in Kiruna.
• William Lahoz from NILU is visiting us, and will give a seminar talk on Thursday.

2008-11-21 Stefan Buehler

If you're looking for something specific, try our new site search.

2008-11-21 Oliver Lemke

Remote Sensing Course

The course "Environmental Monitoring from Space --- R7006R" is starting tomorrow.

2008-11-03 Stefan Buehler

A new revision of the UTH data set is available. It now includes NOAA-18 and MetOp-A.

2008-11-03 Oliver Lemke

New Group Members

We have three new group members: Isaac Moradi (PhD student) Erik Johansson (Master student) Gerrit Holl (Master student) Welcome to the club!

2008-10-29 Stefan Buehler

Documentation on the AMSU Level-1 data is now available.

2008-09-26 Gerrit Holl

Hong's paper on Interannual to Diurnal Variations in Tropical and Subtropical Deep Convective Clouds and Convective Overshooting from Seven Years of AMSU-B Measurements has been published in Journal of Climate.

2008-07-28 Oliver Lemke

The JGR paper on An Upper Tropospheric Humidity Data Set From Operational Satellite Microwave Data is published.

2008-07-28 Stefan Buehler

Summer can be nice in north Sweden.

2008-07-17 Stefan Buehler

Wanted: Assistant Professor (Forskarassistent) --- DEADLINE CLOSED ---

We have another open assistant professor position. This position is initially for four years (2+2). It is part of LTU's PhD School of Space Technology, with at present 15 PhD students and plans for 10 new PhD students. Although there is a 20% teaching duty, the emphasis is on research in satellite atmospheric science.

• Reference number: 1519-08
• Application deadline: August 20, 2008
• Job description
• Application template
• Appointment procedure
• Email application: Single pdf file to registrator(at)ltu.se with Cc to sbuehler(at)ltu.se
• Or traditional application to: Luleå University of Technology, The Registry Secretary, SE-971 87 Luleå, Sweden
• Contact: Until July 4: mathias.milz(at)ltu.se; from July 14: sbuehler(at)ltu.se

2008-06-18 Stefan Buehler

Summer Visitors

We are getting more exciting visiting scientists in summer:

• Patrick Eriksson (early August)
• Carlos Jimenez (early August)
• Viju Oommen John (late August)

2008-06-18 Stefan Buehler

Job Opportunities --- DEADLINE CLOSED ---

1. Assistant Professor (Forskarassistent) in Experimental Cloud Microphysics

   We want to start a new research group on in-situ measurements of cloud ice microphysics. The goal is to develop and use cloud particle imaging instruments to study the size and shape distributions of cloud ice particles. The focus should be on experiments with balloons, aircraft, or unmanned drones. This position is initially for four years (2+2). For details and application procedure see job ad 1032-08 on the LTU homepage.

2. Postdoc Position in Satellite Cloud Remote Sensing

   The goal is to develop a cloud ice water path data product from AMSU-B measurements. You will also be co-advisor of a PhD student in the same area. This position is initially for 2 years (with possibility of extension). For details and application procedure see job ad 1029-08 on the LTU homepage.

3. PhD Student Position in Millimeter/Sub-Millimeter Wave Observations of Ice Clouds

   The goal of the PhD project is to develop retrieval algorithms for cloud ice parameters from satellite measurements in the millimeter/sub-millimeter wave spectral range. This position is for 5 years. For details and application procedure see job ad 1031-08 on the LTU homepage.

4. PhD Student Position in Parameterizations of Cloud Ice Microphysics in Climate Models

   The goal of the PhD project is to investigate the impact of different parameterizations of cloud ice microphysics on climate predictions. This position is for 5 years. For details and application procedure see job ad 1030-08 on the LTU homepage.

2008-04-21 Stefan Buehler

Cory Davis from the New Zealand Meteorological Service is joining us as Visiting Fellow from May 25 to June 23. See you in May, Cory!

2008-04-11 Stefan Buehler

Good news: Our paper An Upper Tropospheric Humidity Data Set From Operational Satellite Microwave Data has been accepted by JGR.

2008-02-04 Stefan Buehler

Postdoc wanted! Click here to go to the job ad. --- DEADLINE CLOSED ---

2008-01-28 Stefan Buehler

Hong's paper on Interannual to Diurnal Variations in Tropical and Subtropical Deep Convective Clouds and Convective Overshooting from Seven Years of AMSU-B Measurements has been accepted by Journal of Climate.

2008-01-28 Stefan Buehler

The NWP case study paper has been accepted by JQSRT, thanks to the efforts of Viju.

2008-01-07 Stefan Buehler

We wish you all a Merry Christmas and a Happy New Year!

2007-12-24 Oliver Lemke

I have submitted the revised version of the paper on An Upper Tropospheric Humidity Data Set From Operational Satellite Microwave Data to JGR. Thanks to all co-authors!

2007-12-21 Stefan Buehler

Polar Stratospheric Clouds sighted over Kiruna.

2007-12-17 Oliver Lemke

PhD student wanted! --- DEADLINE CLOSED ---

2007-11-30 Stefan Buehler

First good snow. The skiing season has started!

2007-11-10 Stefan Buehler

The COST 723 special issue of QJRMS is now published online. We have four papers in the special issue, you can find them here on our publications page.

2007-11-09 Stefan Buehler

The ACP AMSU cloud filter paper is now published.

2007-11-08 Stefan Buehler

Our frontpage has been updated. Additionally to the latest news, you can now see images related to the work of our group.

2007-09-20 Oliver Lemke

On Thursday September 6, Mashrab successfully defended his PhD thesis in Bremen. Congratulations Dr. Kuvatov!

2007-09-10 Stefan Buehler

2007-08-23 Stefan Buehler

The final report of the ESA sub-mm cloud sensor study is now available for download here.

2007-08-15 Stefan Buehler

Cory's ACP paper on 3-D polarised simulations of space-borne passive mm/sub-mm midlatitude cirrus observations has been published.

2007-08-08 Stefan Buehler

Bengt's paper "Prediction of cloud ice signatures in sub-mm emission spectra by means of ground-based radar and in-situ microphysical data" has been accepted by QJRMS.

2007-08-07 Stefan Buehler

We have a new group member since August 1. Welcome Salomon!

2007-08-02 Stefan Buehler

The CIWSIR mission concept paper has been accepted by QJRMS.

2007-07-26 Stefan Buehler

Mathias has co-authored an ACP paper on HDO measurements with MIPAS.

2007-07-25 Stefan Buehler

Cory's cirrus 3D-impact paper has been accepted by ACP.

2007-07-24 Stefan Buehler

Viju has joined us in Kiruna for a couple of weeks as a visiting scientist.

2007-07-17 Stefan Buehler

Carlos' cloud ice retrieval paper has been accepted by QJ.

2007-06-01 Stefan Buehler

Cory has submitted a revised version of the cirrus 3D-impact paper to ACP.

2007-06-01 Stefan Buehler

The AMSU cloud filter paper has just appeared in ACPD.

2007-05-30 Stefan Buehler

We have a new group member since May 1: Mathias Milz. Welcome!

2007-05-21 Stefan Buehler

Sweden has decided to join the new COST action WaVaCS. Read more in today's press release of the Ministry of Enterprise, Energy and Communications.

2007-04-11 Stefan Buehler

Our paper on Observing CMB polarisation through ice clouds (bibtex key pietranera07:_cmb_polarization_mnras) will appear in the April issue of MNRAS.

2007-03-27 Stefan Buehler

I have just submitted a paper on the CIWSIR mission concept to QJRMS. As always, the manuscript can be found on our publications page.

2007-03-15 Stefan Buehler

The paper pipeline is filling up rapidly these days. I have just added another newly submitted paper to the publications page: A summary on COST 723 by Lahoz, Buehler, and Legras.

2007-03-09 Stefan Buehler

The AMSU cloud filter paper has finally been submitted to ACPD. You can find the pdf file on our publications page. Comments welcome.

2007-03-09 Mashrab Kuvatov

A paper by Bengt on the retrieval simulations in the ESA study on a sub-millimeter cloud ice mission has just been submitted to QJRMS. You can find the pdf file on our publications page. Comments welcome.

2007-02-27 Stefan Buehler

A paper by Carlos on the retrieval simulations in the ESA study on a sub-millimeter cloud ice mission has just been submitted to QJRMS. You can find the pdf file on our publications page. Comments welcome.

2007-02-26 Stefan Buehler

The ESA_SUBMM study had its final presentation in December in Noordwijk. (See also the press release about this.)

2007-01-17 Stefan Buehler

What you are now looking at is the group's shiny new website in Kiruna, Sweden. Beware: There is still some last minute construction going on, not everything may be working correctly.

2007-01-16 Oliver Lemke

The final report for the AFO 2000 Project UTH-MOS can now be found on the UTH-MOS project page and in our list of publications.

2006-10-30 Stefan Buehler

The group is currently moving to Sweden (Lulea Technical University, Department of Space Science, in Kiruna). This website will be moved to a Swedish Server when the time is ready.

2006-09-01 Stefan Buehler