Table 2.2.1 Satellite measurements needed for answering Stratospheric Composition Questions. C = Critical; VI = Very Important; I = Important Rank Q Measurement Rationale Sampling Resolution Precision 2.2.x.x Spatial Temporal Horizontal Vertical (lat. x long.) C 1.1 Total Column a) A crucial factor for determining Global Weekly for 1° x 2° N/A 3 DU C 1.2 Ozone the amount of UV reaching the surface VI 2.3 ground. UV, daily VI 2.4 b) Document spatial coverage of for process polar ozone losses. studies C C 1.1 1.2 Ozone profiles a) Separate photochemical changes Global Weekly for 5° x 10° for km for 0.1 ppmv VI 2.1 due to chlorine change from surface UV, 1° x 2° UV, 0.5 (should be C 2.2 photochemical and transport UV, daily for process km for valid in cases VI 2.3 changes due to climate change for process studies process of high aerosol VI 2.4 b) Separate stratospheric and studies studies loading) I 3.2 tropospheric ozone changes I 3.3 C 1.1 Temperature a) Determine kinetic rates for Global Weekly for 5° x 10° for 2 km for 2K/decade C 1.2 Profiles ozone removal trends, trends, 1° x trends, (Long-term C 2.2 b) Temperature trends (see below). for process 2° for 0.5 km precision VI 2.3 studies process for critical; should VI 2.4 studies process be valid in I 3.2 studies cases of high I 3.3 aerosol loading) C C 1.1 1.2 H2O Quantify processes affecting water Global Weekly for 5° x 10° for 2 km 0.5 ppmv I 1.4 vapor and its impact on climate radiative climate (should be C VI 2.2 2.3 and ozone chemistry forcing, impact, 1° x valid in cases VI 2.4 daily for 2° for of high aerosol C I 3.1 3.2 process process loading) I 3.3 studies studies
Table 2.2.1 Satellite measurements needed for answering Stratospheric Composition Questions. C = Critical; VI = Very Important; I = Important Rank Q 2.2.x.x Measurement Rationale Sampling Resolution Precision Spatial Temporal Horizontal (lat. x long.) Vertical C C VI VI 1.1 1.2 2.3 2.4 Total Column Ozone a) A crucial factor for determining the amount of UV reaching the ground. b) Document spatial coverage of polar ozone losses. Global Weekly for surface UV, daily for process studies 1° x 2° N/A 3 DU C C VI C VI VI I I 1.1 1.2 2.1 2.2 2.3 2.4 3.2 3.3 Ozone profiles a) Separate photochemical changes due to chlorine change from photochemical and transport changes due to climate change b) Separate stratospheric and tropospheric ozone changes Global Weekly for surface UV, daily for process studies 5° x 10° for UV, 1° x 2° for process studies km for UV, 0.5 km for process studies 0.1 ppmv (should be valid in cases of high aerosol loading) C C C VI VI I I 1.1 1.2 2.2 2.3 2.4 3.2 3.3 Temperature Profiles a) Determine kinetic rates for ozone removal b) Temperature trends (see below). Global Weekly for trends, for process studies 5° x 10° for trends, 1° x 2° for process studies 2 km for trends, 0.5 km for process studies 2K/decade (Long-term precision critical; should be valid in cases of high aerosol loading) C C I C VI VI C I I 1.1 1.2 1.4 2.2 2.3 2.4 3.1 3.2 3.3 H2O Quantify processes affecting water vapor and its impact on climate and ozone chemistry Global Weekly for radiative forcing, daily for process studies 5° x 10° for climate impact, 1° x 2° for process studies 2 km 0.5 ppmv (should be valid in cases of high aerosol loading)
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