TABLE G.1 Passive Sensor Needs and Current Allocations Between 75 and 275 GHz

Allocated Band (GHz)

Earth Observing System Instruments

Current Allocation

Other Primary Services

Notes

Lower

Upper

86

92

AMSR, AMSR2, AMSU-A, -B, CMHS, CMSU, MIMR, MTZA, MVZA, MZOAS, SSM/IS, TMI

Primary (exclusive passive)

Radio Astronomy, Space Research (passive)

Clouds, oil spills, ice, snow

100

102

IKAR

Primary

Fixed, Mobile, Space Research (passive)

NO line at 100.49 GHz, limb

105

116

ODIN

Primary (exclusive passive)

Radio Astronomy, Space Research (passive)

O3 line at 110.8 GHz, limb;

CO line at 115.221 GHz, limb;

CO line at 115.27 GHz

116

126

Radiometer (ODIN), AMAS, AMSR2, MILES, MLS, ODIN, SMILES, GEM

Primary

Fixed, ISS, Mobile, Space Research (passive)

Need 115.25-122.25 GHz; O2 line for temperature at 118.8 GHz; NO line at 125.61 GHz, limb. Parameters sensed are wind velocity, temperature, oxygen, and magnetic field

150

151

AMSU-B, MHS

Primary

Fixed, Fixed-Satellite (S-E), Mobile, Space Research (passive)

Want 2 GHz, prefer between 140-150 GHz; surface, water vapor, and cloud parameters for water vapor sounding; NO line at 150.74 GHz, limb

156

158

AMSR2, MHS, MVZA

Primary

Fixed, Fixed-Satellite (S-E), Mobile

Want 155.5-158.5 GHz; surface, water vapor, cloud parameters for water vapor sounding

164

168

AMSR2, CMHS, IMAS, GEM, GeoSTAR

Primary (exclusive passive)

Radio Astronomy, Space Research (passive)

Cloud water, rain, ice; ClO line at 164.38 GHz; ClO line at 167.2 GHz

174.5

176.5

AMAS, AMSR2, AMSU-B, CMHS, HSB, MHS, MILES, MLS, MVZA, SMILES, SSM/IS, GEM, GeoSTAR

Primary

Fixed, ISS, Mobile, Space Research (passive)

Want 174.5-191.6 GHz to improve sounding; three-dimensional sounding for water vapor, both LEO and GEO; NO line at 175.86 GHz for limb sounding

176.5

182

GEM, GeoSTAR

None

Fixed, ISS, Mobile

Needed to improve sounding; three-dimensional sounding for water vapor, both LEO and GEO

182

185

AMSU-B, MHS, MLS, GEM, GeoSTAR

Primary (exclusive passive)

Radio Astronomy, Space Research (passive)

Water vapor line at 183.31 GHz; O3 line at 184.75 GHz; want 174.5-191.6 GHz to improve sounding; three-dimensional sounding for water vapor, both LEO and GEO



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