GOES15 Imager and Sounder a preliminary look Timothy

GOES-15 Imager and Sounder a preliminary look Timothy J. Schmit NOAA/NESDIS/Satellite Applications and Research Advanced Satellite Products Branch (ASPB) Mathew M. Gunshor, Tony Schreiner, Scott Bachmeier, Joleen Feltz, Steve Wanzong, SSEC Data Center, etc. CIMSS/SSEC, Madison, WI Don Hillger and Tim Schmit co-lead the NOAA Science Test 1

Outline • Introduction • First imager and sounder images – Comparisons • Improved imager band 6 (13. 3 um) spatial resolution • Improved INR and Operation thru eclipse • Initial products • Web links 2

GOES-15 GOES-13/14/15 have similar instruments to GOES-8 -12, but on a different spacecraft bus. Spring and fall eclipse outages will be avoided by larger onboard batteries. GOES-8/12 Improved navigation Improved radiometrics Similar stray light to GOES 13/14 GOES-13/14/15 3

First visible image from the GOES-15 Imager • GOES-P Science Test web page: http: //rammb. cira. colostate. edu/projects/goes-p/ GOES-14 4

Visible 5

First GOES-15 Images (sub-sampled) Native projection 6 From NOAA ASPB

GOES-13 Images (sub-sampled) Native projection 7 From NOAA ASPB

First GOES-15 Images (sub-sampled) Native projection 8 From NOAA ASPB

GOES-13 Images (sub-sampled) Native projection 9 From NOAA ASPB

GOES-13 Sounder 10

GOES-15 Sounder (preliminary) 11

G 13 -G 15 sounder (daytime case!) Freq Band Min Diff (K) Max Diff (K) Mean Diff (K) 14. 72 1 -0. 1 14. 34 2 0. 3 0. 8 0. 7 14. 08 3 -0. 2 13. 64 4 0. 4 -0. 1 0. 0 13. 36 5 0. 3 1. 0 0. 8 12. 71 6 0. 6 -0. 5 12. 03 7 1. 0 -0. 6 -0. 3 11. 00 8 1. 6 -0. 2 -0. 3 9. 70 9 1. 2 -0. 1 -0. 2 7. 45 10 0. 9 0. 2 -0. 4 7. 02 11 0. 4 -0. 1 -0. 5 6. 52 12 1. 1 -0. 9 -0. 1 4. 57 13 1. 2 -2. 0 -1. 6 4. 53 14 1. 1 0. 2 0. 4 4. 45 15 0. 5 1. 1 1. 2 4. 13 16 0. 6 -0. 2 -1. 1 3. 98 17 2. 5 1. 3 -0. 4 3. 75 18 1. 5 0. 0 -0. 8 13

Sounder Striping (BAND 15) 1525 G-15 SND 1526 G-13 SND 17 JUN 10168 17: 46: 00 34 84 1 -19 35 87 1 -19 GOES-15: LINESTAT 1525 15 15 TYPE=TEMP # 185 2010168 174600 # DECT AVG VAR BAND NLINES MIN 1 2 3 4 241. 67 240. 53 241. 73 240. 01 2. 80 3. 04 2. 61 3. 01 15 15 44. 44. 219. 8 215. 0 221. 5 212. 0 GOES-13: LINESTAT 1526 15 15 TYPE=TEMP # 181 2010168 174600 # DECT AVG VAR BAND NLINES MIN 1 2 3 4 241. 05 240. 99 241. 03 240. 97 3. 12 3. 08 3. 10 3. 11 15 15 49. 49. 217. 3 216. 7 218. 0 213. 5 MAX 260. 1 245. 7 245. 8 245. 1 MAX 247. 3 247. 1 246. 5 247. 2 Both GOES-15 and GOES-13 average to 241 K! (GIR on this issue) 14

Improved spatial resolution of GOES-15 Imager band 6 The 13. 3 um band 6 of the GOES-13 top panel) has an 8 km IGFOV (Instantaneous Geometric Field of View); while the same band on the GOES-15 (lower panel) has a 4 km 17 IGFOV. Note the finer resolution of the cloud edges and the ‘cleaner’ image.

Improved INR 18

Operation through Eclipse (similar to GOES-14) 19

Preliminary – GOES-15 20

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SRF • There will soon be updated imager and sounder GOES-15 spectral response functions (SRF) released (Revision F). • http: //www. oso. noaa. gov/goescalibration/goes-imager-srfs. htm 24

GOES-15 Sounder WF 25

Imager SRF 26

GOES-15 Imager and Sounder http: //rammb. cira. colostate. edu/projects/goes-p/ http: //www. star. nesdis. noaa. gov/star/news 2010_201004_GOES 15. php#GOE S 15 -IR http: //www. ssec. wisc. edu/media/spotlight/goes 15/ir. html http: //cimss. ssec. wisc. edu/goes/blog/archives/5353 http: //cimss. ssec. wisc. edu/goes/rt/sounder-dpi. php 27

NOAA Tech Report • Please consider providing material for a GOES-15 NOAA Science Test technical memorandum • Please consider viewing the GOES-14 NOAA Science Test technical memo (under review). 28