Speaker
Description
GSAW is a new web portal conceived for quick visualization of various satellite observations relevant for the stratospheric aerosols with a specific focus on extreme events, such as wildfires/pyroCb and volcanic eruptions reaching the stratosphere. GSAW provides visualization of Near-Real Time (NRT) data (delivered with a latency of 1-3 hours) as well as historical data dating back to 1979 for some data sets.
The portal includes several modules offering various ways of data visualization for the following purposes:
1) NRT detection of extreme events: wildfire outbreaks and explosive volcanic eruptions
2) Spatiotemporal tracking of aerosol plumes in NRT mode
3) Source attribution of aerosol plumes in the UTLS
4) Multi-scale analysis of stratospheric aerosol perturbations, their evolution and longevity
Post-KUMAR is the most advanced interactive GSAW module enabling NRT visualization of global nadir mapping and along-orbit vertical sections. The geographic maps of UV absorbing Aerosol Index (AAI) and SO2 total column are overlayed by satellite orbit ground tracks, realized as clickable objects. Clicking on the orbital track in a region of interest displays the respective vertical curtain of aerosol/clouds. Post-KUMAR comprises the following objects:
Daily maps of AAI and SO2 total column (zoomable and color-scalable)
o TROPOMI AAI 2019/01 – present (operational)
o OMPS-NM AAI 2012/02 – 2018/12
o AAI merged satellite record ESA CCI 2000/01 – 2012/01
Satellite ground tracks (clickable) and along-orbit cross sections
o EarthCARE ATLID 2024/08 – present (operational)
o SNPP OMPS-LP 2012/02 – present (operational)
o NOAA-21 OMPS-LP 2023/02 – present (operational)
o CALIPSO CALIOP 2006/06 – 2023/06
Aerosol layer detections (color-coded by layer top altitude)
o SNPP OMPS-LP (stratospheric aerosol layer detection – SALD) 2012/02 - present
o NOAA-21 OMPS-LP (SALD) 2023/02 - present
o CALIOP (upper tropospheric smoke and SALD) 2006/06 – 2023/06
Solar occultations (clickable) and vertical profiles of aerosol and gases
o SAGE II (1984/10 – 2005/08) and ISS SAGE III (2017/05 – present) extinction ratio profiles
o ACE-FTS extinction, temperature, CO, H2O, O3, HCN vertical profiles (2004/02 – 2023/11)
Animated GFS wind fields at 12 UT at different pressure levels (2000/01 – present)
| Topic | Applications (e.g., data assimilation, gridded products, spacecraft re-entry plumes) |
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