i
Advancements, measurement uncertainties, and recent comparisons of the NOAA frost point hygrometer
-
2016
Source: Atmospheric Measurement Techniques, 9(9), 4295-4310.
[PDF-3.06 MB]
Details:
-
Journal Title:Atmospheric Measurement Techniques
-
Personal Author:
-
NOAA Program & Office:
-
Description:The NOAA frost point hygrometer (FPH) is a balloon-borne instrument flown monthly at three sites to measure water vapor profiles up to 28 km. The FPH record from Boulder, Colorado, is the longest continuous stratospheric water vapor record. The instrument has an uncertainty in the stratosphere that is <6% and up to 12% in the troposphere. A digital microcontroller version of the instrument improved upon the older versions in 2008 with sunlight filtering, better frost control, and resistance to radio frequency interference (RFI). A new thermistor calibration technique was implemented in 2014, decreasing the uncertainty in the thermistor calibration fit to less than 0.01 degrees C over the full range of frost - or dew point temperatures (-93 to +20 degrees C) measured during a profile. Results from multiple water vapor intercomparisons are presented, including the excellent agreement between the NOAA FPH and the direct tunable diode laser absorption spectrometer (dTDLAS) MC-PicT-1.4 during AquaVIT-2 chamber experiments over 6 days that provides confidence in the accuracy of the FPH measurements. Dual instrument flights with two FPHs or an FPH and a cryogenic frost point hygrometer (CFH) also show good agreement when launched on the same balloon. The results from these comparisons demonstrate the high level of accuracy of the NOAA FPH.
-
Source:Atmospheric Measurement Techniques, 9(9), 4295-4310.
-
Document Type:
-
Rights Information:CC BY
-
Compliance:Submitted
-
Main Document Checksum:urn:sha256:01736a54dc40a261e97adf3c92c32a9330fc47ae49b21f0454a99e60860ff42e
-
File Type:
Supporting Files
-
No Additional Files
More +
Related Documents
-
Personal Author:McDuffie, Erin E. ;Edwards, Peter M....2016 | Journal of Geophysical Research-Atmospheres, 121(14), 8712-8729.Description:Tropospheric O-3 has been decreasing across much of the eastern U.S. but has remained steady or even increased in some western regions. Recent increas...Personal Author:Nisbet, E. G. ;Dlugokencky, E. J....2016 | Global Biogeochemical Cycles, 30(9), 1356-1370.Description:From 2007 to 2013, the globally averaged mole fraction of methane in the atmosphere increased by 5.7 +/- 1.2 ppb yr(-1). Simultaneously, delta C-13(CH...2016 | Atmospheric Chemistry and Physics, 16(8), 5043-5062.Description:This study investigates the constraint provided by greenhouse gas measurements from space on surface fluxes. Imperfect knowledge of the light path thr...2016 | Earth System Science Data, 8(2), 461-490.Description:In this paper, we describe the construction of the Stratospheric Water and Ozone Satellite Homogenized (SWOOSH) database, which includes vertically re...2016 | Atmospheric Measurement Techniques, 9(8), 3893-3910.Description:The multiannual global mean of aerosol optical depth at 550 nm (AOD(550))over land is similar to 0.19, and that over oceans is similar to 0.13. About ...Personal Author:PATRA, Prabir K. ;SAEKI, Tazu...2016 | Journal of the Meteorological Society of Japan, 94(1), 91-113.Description:Methane (CH4) plays important roles in atmospheric chemistry and short-term forcing of climate. A clear understanding of atmospheric CH4's budget of e...2016 | Atmospheric Chemistry and Physics, 16(17), 10899-10910.Description:Extensive undersaturations of carbon tetrachloride (CCl4) in Pacific, Atlantic, and Southern Ocean surface waters indicate that atmospheric CCl4 is co...2016 | Biogeosciences, 13(4), 1329-1339.Description:Existing estimates of methane (CH4) fluxes from North American wetlands vary widely in both magnitude and distribution. In light of these differences,...Personal Author:Feingold, Graham ;McComiskey, Allison...2016 | Proceedings of the National Academy of Sciences of the United States of America, 113(21), 5812-5819.Description:The topic of cloud radiative forcing associated with the atmospheric aerosol has been the focus of intense scrutiny for decades. The enormity of the p...Personal Author:Van Dam, Brie ;Helmig, Detlev...2016 | Journal of Geophysical Research-Atmospheres, 121(13), 8055-8066.Description:Atmospheric turbulence quantities, boundary layer ozone (O-3) levels, and O-3 deposition to the tundra surface were investigated at Toolik Lake, AK, d...2016 | Atmospheric Chemistry and Physics, 16(9), 5665-5683.Description:National annual total CO2 emissions from combustion of fossil fuels are likely known to within 5-10aEuro-% for most developed countries. However, unce...Investigating Alaskan methane and carbon dioxide fluxes using measurements from the CARVE towerCite2016 | Atmospheric Chemistry and Physics, 16(8), 5383-5398.Description:Northern high-latitude carbon sources and sinks, including those resulting from degrading permafrost, are thought to be sensitive to the rapidly warmi...Personal Author:Sweeney, Colm ;Dlugokencky, Edward...2016 | Geophysical Research Letters, 43(12), 6604-6611.Description:Continuous measurements of atmospheric methane (CH4) mole fractions measured by NOAA's Global Greenhouse Gas Reference Network in Barrow, AK (BRW), sh...Personal Author:Alden, Caroline B. ;Miller, John B....2016 | Global Change Biology, 22(10), 3427-3443.Description:Understanding tropical rainforest carbon exchange and its response to heat and drought is critical for quantifying the effects of climate change on tr...Personal Author:Song, Hajoon ;Marshall, John...2016 | Journal of Geophysical Research-Oceans, 121(9), 6635-6649.Description:We investigate the role of mesoscale eddies in modulating air-sea CO2 flux and associated biogeochemical fields in Drake Passage using in situ observa...2016 | Atmospheric Measurement Techniques, 9(11), 5293-5314.Description:Carbonyl sulfide (COS) has been suggested as a useful tracer for gross primary production as it is taken up by plants in a similar way as CO2. To expl...2017 | Journal of Geophysical Research-Atmospheres, 122(2), 1203-1223.Description:A 20 month cloud condensation nucleus concentration (N-CCN) data set from Graciosa Island (39 degrees N, 28 degrees W) in the remote North Atlantic is...2016 | Atmospheric Measurement Techniques, 9(7), 3355-3389.Description:Profiles of CFC-11 (CCl3F) and CFC-12 (CCl2F2) of the Michelson Interferometer for Passive Atmospheric Sounding (MIPAS) aboard the European satellite ...Personal Author:Vollmer, Martin K. ;Mühle, Jens...2016 | Journal of Geophysical Research-Atmospheres, 121(7), 3663-3686.Description:We report ground-based atmospheric measurements and emission estimates for the halons H-1211 (CBrClF2), H-1301 (CBrF3), and H-2402 (CBrF2CBrF2) from t...Controlled weather balloon ascents and descents for atmospheric research and climate monitoringCite2016 | Atmospheric Measurement Techniques, 9(3), 929-938.Description:In situ upper-air measurements are often made with instruments attached to weather balloons launched at the surface and lifted into the stratosphere. ...
More +
You May Also Like
2021 | Journal of Geophysical Research: Atmospheres, 126, e2020JD033803
Description:
Since June 2017, the Stratospheric Aerosol and Gas Experiment III instrument on the International Space Station (SAGE III/ISS) has been providing vert...
2016 | Atmospheric Measurement Techniques, 9(9), 4447-4457.
Description:
Balloon-borne frost point hygrometers (FPs) and the Aura Microwave Limb Sounder (MLS) provide high-quality vertical profile measurements of water vapo...
Checkout today's featured content at repository.library.noaa.gov