# Presentation: 844382

## BRIDGING BETWEEN                   EOS AND NPOESS

**R. Taylor****1****, S. Neeck****1****, M. Crison****2**** and      **
**F. Bordi****3**
- 1 **Goddard Space Flight Center, Greenbelt, MD  20771  USA**
**2**** NPOESS Integrated Program Office, Silver Spring, MD 20910  USA**
**3**** Computer Sciences Corporation, Seabrook, MD  20706  USA**
**Presented at the**
**European Symposium on Remote Sensing**
**Florence, Italy**
**September 20 – 24, 1999**

## Contents

**Why NPP?**
**EOS-2 climate variability and trend**
**EOS-3 global terrestrial and oceanic productivity**
**Integrated Schedule**
**Mission Concept**
**Mission Partners**
**Contributions to NASA Earth Science**
**Contributions to NPOESS**
**Mission Architecture Concept**
**Instruments**
**Conclusion**

## WHY NPP?

***WHY NPP?***

**Report of Post-2002 Mission Studies, Easton, MD, USA:**
**EOS-1: Land Cover / Land Use Inventory**
**EOS-2:  Climate Variability and Trend**
**EOS-3:  Global Terrestrial and Oceanic Productivity**
**EOS-4:  Total Solar Irradiance Monitoring**
**EOS-5:  Ocean Surface Wind Measurement**
**EOS-6:  Ocean Surface Topography**
**EOS-7:  Stratospheric Composition Measurement**
**EOS-8:  Topography and Surface Change**
**EOS-9:  Global Precipitation**
**EOS-10:  Polar Altimetry**
**OP-1:  Advanced Sounding**

**= NPP**

## Integrated Schedule

***Integrated Schedule***

**FY**

**0530**

**DMSP**

**NPOESS**

**Windsat/Coriolis**

**0730-1030**

**DMSP**

**POES**

**METOP**

**Terra**

**1330**

**POES**

**NPOESS**

**EOS-PM**

**10**

**01**

**02**

**09**

**NPP**

**99**

**00**

**07**

**08**

**03**

**04**

**05**

**06**

**18**

**11**

**12**

**13**

**14**

**16**

**17**

**15**

- Nodal Crossing Time

## Mission Concept

**EOS = Earth Observing System**
**NPOESS = National Polar-orbiting Environmental Satellite System**

## Mission Partners

_**IPO**_
**Joint Program Management **
**Augmented VIIRS**
**CrIS**
**Command, Communications, Control Segment (C3S)**
**Interface Data Processor Segment (IDPS)**
**Mission Operations**

_**NASA**_
**Joint Program Management **
**Mission systems engineering, integration, and test**
**ATMS**
**Spacecraft and integration**
**Launch**
**Science data capability**

## Contributions to NASA Earth Science

**LAND SURFACE**
- Vegetation Dynamics
- Fire Occurrence
- Surface Temperature
- Volcanic Effects
**CRYOSPHERE**
- Sea Ice (secondary)
- Snow Cover (secondary)

**ATMOSPHERE**
- Cloud Properties
- Atmospheric Temperature
- Atmospheric Humidity
- Aerosol Properties
**OCEANS**
- Surface Temperature
- Phytoplankton and  Dissolved Organic Matter

## Contributions to NPOESS

**Instrument Risk Reduction**
**Ground System Risk Reduction**
**Early User Evaluation of NPOESS data products**

## Mission Architecture Concept

***Mission Architecture Concept***

- Launch Support Segment

- I/F Data Processing Segment

- Comnd, Ctrl and Comm Segment

- Archive and Distribution Segment

- Science Data Segment

- RDRs

- RDRs, SDRs, EDRs

- Raw SMD
- Telemetry

- IPO

- NOAA (TBR)

- NASA

- User Community

- Space Segment

## Advanced Technology Microwave Sounder (ATMS)

**In conjunction with CrIS, daily global observation of atmospheric temperature and humidity profiles**
**Multi-channel scanning microwave total power radiometer**
**2300 km swath, 66 Kg, 0.3 Kbps avg****.**

## Cross-Track Infrared Sounder (CrIS)

**In conjunction with ATMS, daily global observation of atmospheric temperature and humidity profiles**
**Michelson interferometer infrared sounder covering 3.5 – 16 ********m**
**2300 km swath, 81 Kg, 1.5 Mbps avg.**

## Visible/Infrared Imager/Radiometer Suite (VIIRS)

**Daily global observation of land, oceans, and atmosphere for climate research and weather forecasting**
**Multispectral (visible through thermal infrared) scanning radiometer**
**3000 km swath, 200 Kg, 8 Mbps avg****.**

## Conclusion

**Proceeding with Mission Formulation**
**Offers benefits to research and operational communities**
**Calibrated, geo-located, global observations for research after EOS Terra and PM**
**Incorporate lessons-learned from EOS Terra and PM into NPP in the areas of instruments, calibration, validation, spacecraft, and ground processing**
**A key benefit to operational community is early evaluation of NPOESS-like data**
**Allows for the calibration/validation of sensors & algorithms**
**Facilitates the transition to using NPOESS data**
**Website:  http://jointmission.gsfc.nasa.gov**

## Backup

## Mission Objectives

**Provide NASA with continuation of global change observations after Earth Observing System (EOS) TERRA and EOS PM**
**Provide National Polar-orbiting Operational Environmental Satellite System (NPOESS) with risk reduction demonstration and validation for 3 of the 4 critical NPOESS sensors, algorithms, and processing**

## Spacecraft

**Estimated Mass:  1400 Kg**
**Estimated Power:  1000W**

## Launch Vehicle

_**Med-Lite Class**_
**Delta 7320 – 9.5**

## Environmental Data Records and Science Data Products

**VIIRS**
**Imagery****	**
**Sea Surface Temperature**
**Soil Moisture**
**Aerosol Optical Thickness**
**Aerosol Particle Size **
**Suspended Matter**
**Precipitable Water (secondary)**
**Cloud Base Height**
**Cloud Cover / Layers**
**Cloud Effective Particle Size**
**Cloud Optical Thickness**
**Cloud Top Height**
**Cloud Top Pressure**
**Cloud Top Temperature**

**VIIRS (cont’d)**
**Albedo (Surface)**
**Land Surface Temperature**
**Normalized Differential Vegetation Index**
**Snow Cover / Depth**
**Vegetation Index / Surface Type**
**Currents**
**Fresh Water Ice**
**Ice Surface Temperature**
**Littoral Sediment Transport**
**Net Heat Flux**
**Ocean Color / ChlorophyII**
**Sea Ice Age / Edge Motion**
**Mass Loading / Turbidity**
**Active Fire Products**

## Environmental Data Records and Science Data Products (cont’d)

**CrIS / ATMS**
**Atmospheric Temperature Profile**
**Atmospheric Humidity Profile**

## Web Sites

- NPP Web Site
- _[http://jointmission.gsfc.nasa.gov](http://jointmission.gsfc.nasa.gov/)_
- EOS-G Program Web Site
- _http://eos.gsfc.nasa.gov_
- EOS Science Web Site
- _http://eospso.gsfc.nasa.gov_
- NPOESS Web Site
- _http://www.ipo.noaa.gov_