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THE GOES-R SERIES ADVANCED BASELINE IMAGER (ABI). Timothy J. Schmit NOAA/NESDIS/ORA Advanced Satellite Products Team (ASPT) James J Gurka NOAA/NESDIS/OSD Mathew M. Gunshor, Jun Li, etc. Cooperative Institute for Meteorological Satellite Studies (CIMSS) Madison, WI.

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THE GOES-R SERIES ADVANCED BASELINE IMAGER (ABI)


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slide1

THE GOES-R SERIES ADVANCED BASELINE IMAGER (ABI)

Timothy J. Schmit

NOAA/NESDIS/ORA Advanced Satellite Products Team (ASPT)

James J Gurka

NOAA/NESDIS/OSD

Mathew M. Gunshor, Jun Li, etc.

Cooperative Institute for Meteorological Satellite Studies (CIMSS)

Madison, WI

GOES-R Users Conference

May 2004

UW-Madison

limitations of current goes imagers
Limitations of Current GOES Imagers
  • Missing spectral bands
  • Low spatial resolution
  • Regional/Hemispheric scan conflicts
  • Eclipse and related outages

The ABI (Advanced Baseline Imager) is the next generation operational geostationary imager.

The GOES-R/ABI era will begin in 2012.

the advanced baseline imager

ABI Current

Spectral Coverage

16 bands 5 bands

Spatial resolution

0.64 mm Visible 0.5 km Approx. 1 km

Other Visible/nearIR 1.0 km n/a

Bands (>2 mm) 2 km Approx. 4 km

Spatial coverage

Full disk 4 per hour Every 3 hours

CONUS 12 per hour ~4 per hour

Visible

On-orbit calibrationYes No

Low-light imaging Yes No

The Advanced Baseline Imager:

slide4

ABI spatial coverage rate versus the current GOES Imager

ABI coverage in ~5 minutes

Current GOES coverage in 5 minutes

  • There are two anticipated scan modes for the ABI:
  • full disk images every 15 minutes + CONUS images every 5 minutes + mesoscale.
  • Full disk every 5 minutes.
slide5

AVIRIS spectra

Snow, Phase

Cirrus

Part. size

Veg.

Haze

Clouds

Visible and near-IR channels on the ABI

Radiance

The current GOES has only one visible band.

slide6

While there are differences, there are also many similarities for the spectral bands on MET-8 and the Advanced Baseline Imager (ABI). Both the MET-8 and ABI have many more bands than the current operational imagers.

slide7

Weighting Functions for the IR channels on the ABI

Weighting functions for the standard atmosphere at a local zenith angle of 40 degrees.

slide8

ABI Bands

Based on experience from:

Current GOES Imagers

slide9

ABI Bands

Based on experience from:

MSG/AVHRR/Sounder(s)

Current GOES Imagers

slide10

ABI Bands

Based on experience from:

MSG/AVHRR/Sounder(s)

MODIS, Aircraft, etc

Current GOES Imagers

slide11

Select Products

clouds/fog solar insolation

aerosol products hurricane intensity

cloud phase, cloud particle size

snow, ice volcanic ash/ SO2

land/sea surface temperature

atmospheric motion

fires

cloud height/emissivity

haze/dust

NDVI (Normalized Difference Vegetation Index)

severe weather signatures

turbulence

ozone

radiances, cloud mask

rainfall

Products that are highlighted are included in this talk

slide13

Three-color composite (0.64, 1.6 and 11 µm) shows the low cloud over the snow and the water versus ice clouds.

Snow

Low

cloud

slide14

Visible and near-IR channels on the ABI

The ABI visible and near-IR bands have many uses.

slide15

Volcanic Ash Plume: 11-12 and 8.5-11 μm images

UW/CIMSS

One day after the Mt. Cleveland eruption

20 February 2001, 0845 UTC

Simulated

ABI

(11-12 μm)

Simulated

ABI

(8.5-11 μm)

Poster…Ellrod

slide16

SO2 calculations from F. Prata

Slightly shift, toward larger wavenumbers, the two narrow ABI water vapor bands to better discriminate the SO2 peak.

slide17

Simulated GOES-R ABI

Image Difference

TOMS

Carn

Upper-level SO2 poster…Schreiner et al.

Plume

Simulated IR spectrums for “normal” and “SO2 enriched” atmosphere and spectral response functions

Differenceand GOES-R ABI SRF

slide18

GOES-R ABI will improve fire detection and characterization useful for air quality monitoring and forecasting

GOES-8 Wildfire ABBA fire product

for the Pacific Northwest

Date: August 17, 2001

Time: 2200 UTC

FIRES

Smoke

NAAPS Model Aerosol Analysis

for the continental U.S.

Date: August 18, 2001

Time: 1200 UTC

Poster…Schmidt et al. and S. Kondragunta et al.

slide19

Poster…Schmidt; Miller

ABI “Natural Color” Image (from MODIS)

This represents a “best case” for generating an “natural color” Red-Green-Blue” composite image, given the MODIS 550 nm data from this image was used to build the Look Up Table (LUT) to simulate the “green” component from the other spectral bands. The HES-Coastal Water will have a 550 nm band.

Hurricane Isabel on September 18, 2003 from MODIS

slide21

Mountain Waves in WV channel (6.7 µm)

7 April 2000, 1815 UTC

Simulated ABI

Actual GOES-8

Mountain waves over Colorado and New Mexico were induced by strong northwesterly flow associated with a pair of upper-tropospheric jet streaks moving across the elevated terrain of the southern and central Rocky Mountains. The mountain waves appear more well-defined over Colorado; in fact, several aircraft reported moderate to severe turbulence over that region.

Both images are shown in GOES projection.

UW/CIMSS

slide22

GOES-10 4 minus 11 μm Difference

ABI 4 minus 11 μm Difference

Fog -- Based on GOES Imager 3.9 µm

5 March 2001 - Nocturnal Fog/Stratus Over the Northern Plains

Both images are shown in

the GOES projection.

Fog

UW/CIMSS

ABI image (from MODIS) shows greater detail in structure of fog.

slide23

Higher Spatial Resolution GOES Channels

Simulated ABI

(from MODIS)

concentric anvil-layer waves

Enhanced “V”:

IR windows

May 25, 2000

Enhanced “V”

Actual GOES

http://cimss.ssec.wisc.edu/goes/misc/000525.html

slide24

Satellite-derived rainfall estimates

Satellite-derived precipitation estimates will be improved for GOES-R:

- higher spatial resolution (better depiction of cold cores)

- more frequent images (offers cell growth information)

- improved cloud height (with multiple bands and HES)

- new ABI bands (phase information, better cloud detection)

- better NEdT’s

- better navigation/registration

Poster…Kuligowski

slide25

Radiances and Cloud Mask

This includes both the navigated, calibrated pixels, as well as a clear-sky mask.

For example, MODIS uses 17 of the 36 MODIS bands to identify the presence of clouds.

For the ABI: Potentially all bands would be used, depending on the location and time of day.

Plus, both clear and cloudy radiances can be used for Numerical Weather Prediction (NWP) – along with a host of products (winds, cloud-top information, snow cover, etc.)

Poster…Frey et al.

slide26

Combined GOES-8 & -10 Imager

Long Wave Band (11.0 m)

Sample:

Combined GOES-8 & -10 Imager

Water Vapor Band (6.7 m)

Clear-Sky Brightness Temperature

(CSBT Image)

slide27

Poster…Wimmers

Current routine GOES and ABI temporal sampling

Regional View

ABI

This simulated GOES-R ABI loop was created by morphing between two actual GOES images."Morphing" describes a broad category of digital image algorithms used to create smooth, seamless transitions between two or more images.

slide28

MET-8

  • The advanced multi-spectral geostationary operational imager, Met-8, can be used to prepare for the ABI.
slide29

Spatial

Temporal

resolution

resolution

Cloud

clearing

Improved products will be realized from combinations of ABI and HES (Hyperspectral Environmental Suite) data

(IR and Visible/near IR on the HES-Coastal Water)!

ABI

HES

Spectral coverage

Surface

emissivity

Spectral resolution

slide30

CIMSS

Much improved spatial coverage with the HES Sounder

Current GOES Sounder coverage in one hour

GOES-R HES Sounder coverage in one hour

Cloud Top Pressure

goes r observational requirements preliminary instrument allocation
GOES R Observational Requirements*Preliminary Instrument Allocation

ABI – Advanced Baseline Imager

SEM – Space Environment Monitor

HES – Hyperspectral Environmental Suite

SXI – Solar X-Ray Imager

GLM – GOES Lightning Mapper

* Does not reflect individual geographic coverage requirements.

Prepared By: L.O’Connor 04/23/2004

slide32

“0.47m”

“0.64m”

“0.86m”

“1.38m”

“1.61m”

“2.26m”

“3.9m”

“6.19m”

“6.95m”

“7.34m”

“8.5m”

“9.61m”

“10.35m”

“11.2m”

“12.3m”

“13.3m”

Using MODIS, MET-8 and AIRS to simulate the spectral bands on the Advanced Baseline Imager (ABI)

slide33

“0.47m”

“0.64m”

“0.86m”

“1.38m”

“1.61m”

“2.26m”

“3.9m”

“6.19m”

“6.95m”

“7.34m”

“8.5m”

“9.61m”

“10.35m”

“11.2m”

“12.3m”

“13.3m”

Similar bands on the GOES-12 Imager

slide34

Summary -- ABI

  • ABI addresses Imager concerns by:
    • increasing spatial resolution
    • - closer to NWS goal of 0.5 km IR
    • scanning faster
    • - temporal sampling improved
    • - more regions scanned
    • adding bands
    • - new and/or improved products enabled
  • Simulations (from MODIS, AIRS, NAST-I, MSG and AVIRIS) show that the ABI addresses needs for cloud, moisture, air quality and surface products.
  • Every product from the current GOES imager will be improved!
  • Every band on the ABI will be used for a number of products.
  • ABI will allow exciting new products from geostationary orbit, especially when combined with data from the HES.
slide35

More information -- ABI

  • ABI Research Home page (with a link to all these links):
    • http://cimss.ssec.wisc.edu/goes/abi/
  • ABI Simulated images from NASA AIRS Direct Broadcast:
    • http://cimss.ssec.wisc.edu/goes/abi/airs_broadcast/aniairs.html
  • GOES and MODIS Galleries:
    • http://cimss.ssec.wisc.edu/goes/misc/interesting_images.html
    • http://terra.ssec.wisc.edu/~gumley/images.html
  • ABI Documentation from NASA:
    • http://goes2.gsfc.nasa.gov/abihome.htm
  • ABI Simulated Spectral Response functions:
    • ftp://ftp.ssec.wisc.edu/ABI/SRF