# Presentation: 232725

## The EOS AURA Tropospheric Emission Spectrometer (TES)

**The EOS AURA Tropospheric Emission Spectrometer (TES)**

**Reinhard Beer**
**Science Division**
**The Jet Propulsion Laboratory**
**California Institute of Technology**
**Pasadena, CA**
**Reinhard.Beer@jpl.nasa.gov**

## Slide 2

## The State of TES

**TES is in excellent health and operating normally**** **
**The only significant instrument event to be completed is a warm-up (by ~ 5K) of the optical bench. This should improve our CO product substantially (x2)**
**We have begun delivering L1B products to the Langley ASDC**
**(with some caveats about the calibration – currently ~2%)**
**L2 products are expected this summer**
**The Science Team is focused on the detailed characterization of the instrument**

## TES Operating Modes

***Global Survey:*** **16 orbits of nadir & limb observations repeated every other day. This is the source of ****Standard Products****.**
***Stare:*** **Point at a specific latitude & longitude for up to ~4 minutes.**
***Transect:*** **Point at a set of contiguous latitudes & longitudes to cover ~850 km.**
***Step-&-Stare:*** **Point at nadir for 4 seconds (5.2 seconds with necessary reset). Spacecraft has moved ~35 km. Point at nadir again. Repeat indefinitely.**
***Limb Drag:***** Point at the trailing limb (16 second scans). Repeat indefinitely.**
**These last 4 modes constitute ****Special Products**** that are obtained *****only***** when no ****Global Survey**** is scheduled.**

## Slide 5

## TES Step & Stare, Stare and Transect Modes

**TES Step & Stare, Stare and Transect Modes**

**STEP & STARE: ****A set of nadir footprints spaced about 35 km apart. Can be indefinite.**
**STARE: ****Point at a specific latitude & longitude for up to 210 seconds.**
**TRANSECT: ****A set of exactly contiguous latitudes & longitudes in a line up to 885 km long.**

## Slide 7

## Slide 8

## AVE

**AVE**

**PAVE**

**TES Aircraft Validation Activities:**
**AVE & PAVE**

**We are currently comparing TES retrievals with both aircraft**
**and balloon measurements**

## TES Radiance comparison with S-HIS (AVE campaign)

- Tb (K)

- _TES scan 0_
- SHIS LW
- SHIS MW
- TES 2A1

- _TES scan 5_
- SHIS LW
- SHIS MW
- TES 2A1

- Tb (K)

**TES Radiance comparison with S-HIS (AVE campaign)**

**Frequency, cm****-1**

## Ozone

**TES Special Observation:  Nadir Step & Stare for Nov 3, 2004 (150 observations from 1N to 65N)**

*B ***(Oklahoma)**

*A ***(Yucatan)**

*D ***(Northwest Territories)**

*C ***(South Dakota)**

**Ozone**

**Water**

- The AIRS-visible images (left) show the TES footprint locations (blue) over a variety of cloud and surface conditions.
- The TES retrievals for this Step & Stare are shown for ozone and water with the TES retrieved cloud effective optical depth and height shown with gray circles.

## TES Ozone retrievals & vertical resolution

**TES Ozone retrievals & vertical resolution**

## CO Column from TES, 9-20-04

**CO Column from TES, 9-20-04**

## CO Column from MOPITT, 9-20-04

**CO Column from MOPITT, 9-20-04**

## Interpolated CO column from TES, 9/20/04

**Interpolated CO column from TES, 9/20/04**

## CONCLUSIONS

**CONCLUSIONS**

**TES is fulfilling its promise to provide the first-ever global overview of the key constituents of tropospheric chemistry and their inter-regional transport**

**For more information:**
**http://tes.jpl.nasa.gov**