Appendix G
Earth Science Passive Sensor Needs Above 71 GHz

Tables G.1 and G.2 present the panel’s summary of Earth science passive sensor needs and current allocations above 71 GHz.



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Handbook of Frequency Allocations and Spectrum Protection for Scientific Uses Appendix G Earth Science Passive Sensor Needs Above 71 GHz Tables G.1 and G.2 present the panel’s summary of Earth science passive sensor needs and current allocations above 71 GHz.

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Handbook of Frequency Allocations and Spectrum Protection for Scientific Uses 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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Handbook of Frequency Allocations and Spectrum Protection for Scientific Uses Allocated Band (GHz) Earth Observing System Instruments Current Allocation Other Primary Services Notes Lower Upper 185 190   None Fixed, ISS, Mobile Needed to improve sounding; three-dimensional sounding for water vapor, both LEO and GEO; radio astronomy has secondary allocation by footnote from 186.2-186.6 GHz 190 191.6   None Mobile, Mobile Satellite, Radionavigation, Radionavigation-Satellite Needed to improve sounding; three-dimensional sounding for water vapor, both LEO and GEO; S5.554 also allocates a form of FSS service in conjunction with MSS and RDNSS from 190-200 GHz 199 200 AMAS, MLS, MASTER None Mobile, Mobile Satellite, Radionavigation, Radionavigation-Satellite Want 199-207 GHz; S5.554 also allocates a form of FSS service in conjunction with MSS and RDNSS from 190-200 GHz 200 202 AMAS, MLS, MASTER Primary Fixed, Mobile, Space Research (passive) Want 199-207 GHz; NO line at 200.98 GHz, limb 202 207 AMAS, MLS, MASTER None Fixed, Fixed Satellite (E-S), Mobile Want 199-207 GHz; ClO; O3 line, limb; N2O; H2; and H2O2 217 231 MLS, MASTER Primary (exclusive passive) Radio Astronomy, Space Research (passive) 4 GHz needed, best 217-225 GHz; NO line at 226.09 GHz, limb; O3 line at 230 GHz, limb; CO line at 230.54 GHz, limb 235 238   Primary Fixed, FSS (S-E), Mobile, Space Research (passive) O3 line at 235.71 GHz, limb; O3 line at 237.15 GHz, limb 250 252   Primary (exclusive passive) Space Research (passive) NO line at 251.21 GHz, limb

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Handbook of Frequency Allocations and Spectrum Protection for Scientific Uses TABLE G.2 Passive Sensor Needs and Current Allocations Above 275 GHz Allocated Band (GHz) Earth Observing System Instruments Current Allocation Other Primary Services Notes Lower Upper 275 277   5.565   NO line at 276.33 GHz, limb 296 300 MLS, MASTER None   Want 296-306 GHz; window, line wings 300 302 MLS, MASTER 5.565   Want 296-306 GHz; NO line at 301.44 GHz; O3 line, limb; N2O line; O2 line 302 306   None   Want 296-306 GHz 316 324   None   Want ± 9.0 or 9.5 GHz around 325 GHz 324 326 MASTER 5.565   Want ± 9.0 or 9.5 GHz, nadir water vapor from GEO, limb from LEO; H2O, water vapor sounding at 325.1 GHz 326 334   None   Want ± 9.0 or 9.5 GHz around 325 GHz 336 344 GEM None   Need 339-348 GHz for water vapor sounding, precipitation cell imaging, and Cloud Ice Water Path measurement 345 347 MASTER 5.565   Want 339-348 GHz; CO line at 345.8 GHz, limb; HNO3 line at 346 GHz 347 348   None   Want 339-348 GHz 363 365   5.565   O3 line at 364.32 GHz, limb 371.5 379   None   Water vapor line at 380.2 GHz; need 17 GHz for close to nadir sounding from GEO 379 381 GEM 5.565   Water vapor line at 380.2 GHz; need 17 GHz for close to nadir sounding from GEO 381 388.5   None   Water vapor line at 380.2 GHz; need 17 GHz for close to nadir sounding from GEO 409 411 GEM None   Temperature sounding, centered at 410 GHz 416 433 GEM None   Temperature sounding centered at 424.7 or 2 bands above 485 487 ODIN None   O2 line at 486 GHz, limb 498 505 SOPRANO, MASTER None   BrO line at 498.1 GHz, limb; O3 line at 498.2 GHz, limb; N2O line at 498.3 GHz, limb; H2O line at 498.4 GHz, limb; ClO line at 498.5 GHz, limb; CH3Cl line at 498.6 GHz, limb; Water vapor sounding, near nadir GEO at 498-502 GHz

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Handbook of Frequency Allocations and Spectrum Protection for Scientific Uses Allocated Band (GHz) Earth Observing System Instruments Current Allocation Other Primary Services Notes Lower Upper 523 527   None   Water vapor sounding, near nadir GEO 538 542   None   Water vapor sounding, near nadir GEO 541 558   None   Lines of HNO3 and O3, limb 547 584 ODIN   Mesospheric H2O 552 562   None   Water vapor sounding, near nadir GEO 563 580.4 ODIN None   Lines of ClO and O3 624 629 SMILES, SOPRANO None   ClO2 line at 624.271 GHz, limb; SO2 line at 624.344 GHz, limb; BrO line at 624.77 GHz, limb; O3 line at 625.656 GHz, limb; HCl line at 625.9 GHz, limb; CH3Cl line at 627.177 GHz, limb; O2 line at 627.773 GHz, limb; HOCl line at 628.46 GHz, limb 640 653 MLS (new); SMILES None   Lines: CH2CL, ClO, BrO, HCl, HOCl, SO2; H2O line at 647.198 GHz, limb; ClO line at 649.45 GHz, limb; HO2 line at 649.701 GHz, limb; HNO3 line at 650.279 GHz, limb; O3 line at 650.733 GHz, limb; NO line at 651.771 GHz, limb; N2O line at 652.834 GHz, limb 951 956 SOPRANO None   O2 line at 952 GHz, limb; NO line at 953 GHz, limb 1228 1230 MLS (new) None HF line at 1228.95 GHz, limb 2520 2525 MLS (new) None   OH line at 2522.78 GHz, limb