[1] Gao K L, Duan A M, Chen D L et al. Surface energy budget diagnosis reveals possible mechanism for the different warming rate among Earth's three poles in recent decades[J]. Science Bulletin, 64, 1140-1143(2019). http://www.sciencedirect.com/science/article/pii/s2095927319303949

[2] Sastri A R, Christian J R, Achterberg E P et al. Perspectives on in situ sensors for ocean acidification research[J]. Frontiers in Marine Science, 6, 653(2019).

[3] Li S, Lucey P G, Milliken R E et al. Direct evidence of surface exposed water ice in the lunar polar regions[J]. Proceedings of the National Academy of Sciences of the United States of America, 115, 8907-8912(2018).

[4] Wandt J, Lee J. Arrigan D W M, et al. Ionophore-assisted electrochemistry of neutral molecules: oxidation of hydrogen in an ionic liquid electrolyte[J]. The Journal of Physical Chemistry Letters, 10, 6910-6914(2019).

[5] Qi J. Preparation of gas sensitive fabrics through in situ polymerization of aniline and its gas sensing property[D]. Shenyang: Northeastern University, 1-12(2013).

[6] Sun J[J]. Review of research progress and pretreatment methods of gas chromatography-mass spectrometry technology Modern Chemical Research, 2017, 4-5.

[7] Song K, Jung E C. Recent developments in modulation spectroscopy for trace gas detection using tunable diode lasers[J]. Applied Spectroscopy Reviews, 38, 395-432(2003). http://www.tandfonline.com/doi/abs/10.1081/ASR-120026329

[8] Tan Y, Wang J, Tao L G et al. Precise parameters of molecular absorption lines from cavity ring-down spectroscopy[J]. Chinese Journal of Lasers, 45, 0911002(2018).

[9] O'Keefe A. Deacon D A G. Cavity ring-down optical spectrometer for absorption measurements using pulsed laser sources[J]. Review of Scientific Instruments, 59, 2544-2551(1988). http://scitation.aip.org/content/aip/journal/rsi/59/12/10.1063/1.1139895

[10] Romanini D, Kachanov A A, Sadeghi N et al. CW cavity ring down spectroscopy[J]. Chemical Physics Letters, 264, 316-322(1997). http://www.sciencedirect.com/science/article/pii/S0009261496013516

[11] Chen H, Winderlich J, Gerbig C et al. High-accuracy continuous airborne measurements of greenhouse gases (CO2 and CH4) using the cavity ring-down spectroscopy (CRDS) technique[J]. Atmospheric Measurement Techniques, 3, 375-386(2010). http://www.oalib.com/paper/1365342

[12] Crosson E R. A cavity ring-down analyzer for measuring atmospheric levels of methane, carbon dioxide, and water vapor[J]. Applied Physics B, 92, 403-408(2008).

[13] Butler T J, Miller J L. Orr-Ewing A J. Cavity ring-down spectroscopy measurements of single aerosol particle extinction. I. The effect of position of a particle within the laser beam on extinction[J]. The Journal of Chemical Physics, 126, 174302(2007).

[14] Butler T J, Mellon D, Kim J et al. Optical-feedback cavity ring-down spectroscopy measurements of extinction by aerosol particles[J]. The Journal of Physical Chemistry A, 113, 3963-3972(2009). http://www.ncbi.nlm.nih.gov/pubmed/19249854/

[15] Long D A, Wójtewicz S, Miller C E et al. Frequency-agile, rapid scanning cavity ring-down spectroscopy (FARS-CRDS) measurements of the (30012)←(00001) near-infrared carbon dioxide band[J]. Journal of Quantitative Spectroscopy and Radiative Transfer, 161, 35-40(2015). http://www.sciencedirect.com/science/article/pii/S0022407315001338

[16] Leshchishina O, Kassi S, Gordon I E et al. High sensitivity CRDS of the a1Δg-X3∑g- band of oxygen near 1.27 μm: extended observations, quadrupole transitions, hot bands and minor isotopologues[J]. Journal of Quantitative Spectroscopy and Radiative Transfer, 111, 2236-2245(2010). http://www.sciencedirect.com/science/article/pii/S0022407310001834

[17] Liu G L. Absorption spectral line parameters of water and nitrous oxide from cavity ring-down spectroscopy[D]. Hefei: University of Science and Technology of China, 1-14(2019).

[18] Sahay P, Scherrer S T, Wang C. Measurements of the weak UV absorptions of isoprene and acetone at 261--275 nm using cavity ringdown spectroscopy for evaluation of a potential portable ringdown breath analyzer[J]. Sensors (Basel), 13, 8170-8187(2013). http://search.ebscohost.com/login.aspx?direct=true&db=aph&AN=89361527&site=ehost-live

[19] Crosson E R, Ricci K N, Richman B A et al. Stable isotope ratios using cavity ring-down spectroscopy: determination of 13C/ 12C for carbon dioxide in human breath[J]. Analytical Chemistry, 74, 2003-2007(2002).

[20] Fritsch T, Hering P, Mürtz M. Infrared laser spectroscopy for online recording of exhaled carbon monoxide: a progress report[J]. Journal of Breath Research, 1, 014002(2007). http://europepmc.org/abstract/MED/21383428

[21] Stamyr K, Vaittinen O, Jaakola J et al. Background levels of hydrogen cyanide in human breath measured by infrared cavity ring down spectroscopy[J]. Biomarkers, 14, 285-291(2009).

[22] Crawford T M. Error sources in the “ring down” optical cavity decay time mirror reflectometer[J]. Proceedings of SPIE, 0540, 295-302(1985). http://spie.org/Publications/Proceedings/Paper/10.1117/12.976129

[23] Rao G N, Karpf A. High sensitivity detection of NO2 employing cavity ringdown spectroscopy and an external cavity continuously tunable quantum cascade laser[J]. Applied Optics, 49, 4906-4914(2010).

[24] Huang K, Cassar N, Jonsson B et al. An ultrahigh precision, high-frequency dissolved inorganic carbon analyzer based on dual isotope dilution and cavity ring-down spectroscopy[J]. Environmental Science & Technology, 49, 8602-8610(2015). http://pubs.acs.org/doi/10.1021/acs.est.5b01036

[25] Dupré P. Photodissociation resonances of jet-cooled NO2 at the dissociation threshold by CW-CRDS[J]. The Journal of Chemical Physics, 142, 174305(2015). http://www.ncbi.nlm.nih.gov/pubmed/25956098

[26] Földes T, Lauzin C, Vanfleteren T et al. High-resolution, near-infrared CW-CRDS, and ab initio investigations of N2O-HDO[J]. Molecular Physics, 113, 473-482(2015). http://www.tandfonline.com/doi/full/10.1080/00268976.2014.953611

[27] Campargue A, Kassi S, Mondelain D et al. Detection and analysis of three highly excited vibrational bands of 16O3 by CW-CRDS near the dissociation threshold[J]. Journal of Quantitative Spectroscopy and Radiative Transfer, 152, 84-93(2015).

[28] Richard L, Mondelain D, Kassi S et al. Collision-induced absorption and electric quadrupole transitions of N2 by OF-CEAS near 4.0 μm and CRDS near 2.1 μm[J]. Journal of Quantitative Spectroscopy and Radiative Transfer, 226, 138-145(2019). http://www.sciencedirect.com/science/article/pii/S0022407318309300

[29] Kassi S, Stoltmann T, Casado M et al. Lamb dip CRDS of highly saturated transitions of water near 1.4 μm[J]. The Journal of Chemical Physics, 148, 054201(2018).

[30] Burkart J, Kassi S. Absorption line metrology by optical feedback frequency-stabilized cavity ring-down spectroscopy[J]. Applied Physics B, 119, 97-109(2015).

[31] Desbois T, Ventrillard I, Romanini D. Simultaneous cavity-enhanced and cavity ringdown absorption spectroscopy using optical feedback[J]. Applied Physics B, 116, 195-201(2014). http://link.springer.com/article/10.1007/s00340-013-5675-z

[32] Levenson M D, Paldus B A, Spence T G et al. Optical heterodyne detection in cavity ring-down spectroscopy[J]. Chemical Physics Letters, 290, 335-340(1998). http://www.sciencedirect.com/science/article/pii/S0009261498005004

[33] Cao L, Wang C M, Chen Y Q et al. Theoretical investigation of optical heterodyne cavity ring down spectroscopy[J]. Acta Physica Sinica, 55, 6354-6359(2006).

[34] Silander I, Hausmaninger T, Axner O. Model for in-coupling of etalons into signal strengths extracted from spectral line shape fitting and methodology for predicting the optimum scanning range: demonstration of Doppler-broadened, noise-immune, cavity-enhanced optical heterodyne molecular spectroscopy down to 9×10 -14 cm -1[J]. Journal of the Optical Society of America B, 32, 2104-2114(2015). http://www.opticsinfobase.org/abstract.cfm?uri=josab-32-10-2104

[35] Curtis E A, Barwood G P, Huang G et al. Ultra-high-finesse NICE-OHMS spectroscopy at 1532 nm for calibrated online ammonia detection[J]. Journal of the Optical Society of America B, 34, 950-958(2017).

[36] Zhao G, Hausmaninger T, Schmidt F M et al. High resolution ultra-sensitive trace gas detection by use of cavity-position-modulated sub-Doppler NICE-OHMS-application to detection of acetylene in human breath[J]. Physics, 99, 779-791(2018). http://arxiv.org/abs/1810.12235v1

[37] Zhou Y T, Zhao G, Liu J X et al. Theoretical analysis of direct measurement of atmospheric samples based on NICE-OHMS technology[J]. Spectroscopy and Spectral Analysis, 40, 706-711(2020).

[38] Morville J, Romanini D, Kachanov A A et al. Two schemes for trace detection using cavity ringdown spectroscopy[J]. Applied Physics B, 78, 465-476(2004). http://link.springer.com/article/10.1007/s00340-003-1363-8

[39] Burkart J, Romanini D, Kassi S. Optical feedback frequency stabilized cavity ring-down spectroscopy[J]. Optics Letters, 39, 4695-4698(2014).

[40] Burkart J, Romanini D, Kassi S. Optical feedback stabilized laser tuned by single-sideband modulation[J]. Optics Letters, 38, 2062-2064(2013).

[41] Cygan A, Lisak D, Masłowski P et al. Pound-Drever-Hall-locked, frequency-stabilized cavity ring-down spectrometer[J]. The Review of Scientific Instruments, 82, 063107(2011).

[42] Ehlers P, Johansson A C, Silander I et al. Use of etalon-immune distances to reduce the influence of background signals in frequency-modulation spectroscopy and noise-immune cavity-enhanced optical heterodyne molecular spectroscopy[J]. Journal of the Optical Society of America B, 31, 2938-2945(2014).

[43] Silander I, Hausmaninger T, Ma W G et al. Doppler-broadened mid-infrared noise-immune cavity-enhanced optical heterodyne molecular spectrometry based on an optical parametric oscillator for trace gas detection[J]. Optics Letters, 40, 439-442(2015).

[44] Fleurbaey H, Yi H M, Adkins E M et al. Cavity ring-down spectroscopy of CO2 near λ=2.06 μm: accurate transition intensities for the Orbiting Carbon Observatory-2 (OCO-2) “strong band”[J]. Journal of Quantitative Spectroscopy and Radiative Transfer, 252, 107104(2020).

[45] Long D, Reed Z, Fleisher A et al. 47(5): e2019GL086344(2020).

[46] Fleisher A J, Adkins E M, Reed Z D et al. Twenty-five-fold reduction in measurement uncertainty for a molecular line intensity[J]. Physical Review Letters, 123, 043001(2019). http://www.researchgate.net/publication/334755155_Twenty-Five-Fold_Reduction_in_Measurement_Uncertainty_for_a_Molecular_Line_Intensity

[47] Yi H M, Liu Q N, Gameson L et al. High-accuracy 12C 16O2 line intensities in the 2 μm wavelength region measured by frequency-stabilized cavity ring-down spectroscopy[J]. Journal of Quantitative Spectroscopy and Radiative Transfer, 206, 367-377(2018).

[48] Fleisher A J, Long D A, Yi H M et al. Accurate optical measurements of stable and radioactive carbon isotopologues of CO2. [C]∥Light, Energy and the Environment 2018 (E2, FTS, HISE, SOLAR, SSL), Singapore. Washington, D.C.: OSA, EW3A, 2(2018).

[49] Ghysels M, Liu Q N, Fleisher A J et al. A variable-temperature cavity ring-down spectrometer with application to line shape analysis of CO2 spectra in the 1600 nm region[J]. Applied Physics B, 123, 1-13(2017). http://dx.doi.org/10.1007/s00340-017-6686-y

[50] Reed Z D, Long D A, Fleurbaey H et al. Comb-locked cavity-ringdown spectroscopy for molecular transition frequency measurements below 1×10 -12 relative uncertainty. [C]∥Conference on Lasers and Electro-Optics, Washington, D.C. Washington, D.C.: OSA, SM1M, 4(2020).

[51] Long D A, Fleisher A J, Liu Q et al. Ultra-sensitive cavity ring-down spectroscopy in the mid-infrared spectral region[J]. Optics Letters, 41, 1612-1615(2016).

[52] Fleisher A J, Long D A, Liu Q N et al. Towards the robust trace detection of radiocarbon via linear absorption spectroscopy. [C]∥Conference on Lasers and Electro-Optics, San Jose, California. Washington, D.C.: OSA, SF1M, 2(2017).

[53] Fleisher A J, Long D A, Liu Q N et al. Optical measurement of radiocarbon below unity fraction modern by linear absorption spectroscopy[J]. The Journal of Physical Chemistry Letters, 8, 4550-4556(2017).

[54] Dai D X, Sun F G, Kang L et al[J]. A cavity ring down spectroscopic setup for high Rep.rate real time measurment Chinese Journal of Chemical Physics, 1997, 481-486.

[55] Zhao D F. Spectroscopy study of several free radicals by cavity ringdown[D]. Hefei: University of Science and Technology of China, 1-21(2009).

[56] Pan H, Cheng C F, Sun Y R et al. Laser-locked, continuously tunable high resolution cavity ring-down spectrometer[J]. The Review of Scientific Instruments, 82, 103110(2011).

[57] Gong Z Y, Sun M X, Wang C et al. Optimization and evaluation of a breath acetone analyzer for diabetes diagnosis using cavity ringdown spectroscopy (CRDS) at 266 nm[J]. Diabetes Technology & Therapeutics, 16, A96-A97(2014). http://www.researchgate.net/publication/278299599_optimization_and_evaluation_of_a_breath_acetone_analyzer_for_diabetes_diagnosis_using_cavity_ringdown_spectroscopy_crds_at_266nm

[58] Guo R M, Teng J H, Cao K et al. Comb-assisted, Pound-Drever-Hall locked cavity ring-down spectrometer for high-performance retrieval of transition parameters[J]. Optics Express, 27, 31850-31863(2019).

[59] Wu H, Chen J, Liu A W et al. Cavity ring-down spectroscopy measurements of ambient NO3 and N2O5[J]. Chinese Journal of Chemical Physics, 33, 1-7(2020). http://www.researchgate.net/publication/339969772_Cavity_ring-down_spectroscopy_measurements_of_ambient_NO_3_and_N_2_O_5

[60] Wu H, Stolarczyk N, Stolarczyk N et al. Comb-locked cavity ring-down spectroscopy with variable temperature[J]. Optics Express, 27, 37559-37567(2019). http://www.researchgate.net/publication/337750340_Comb-locked_cavity_ring-down_spectroscopy_with_variable_temperature

[61] Hu C L, Perevalov V I, Cheng C F et al. Optical-optical double-resonance absorption spectroscopy of molecules with kilohertz accuracy[J]. The Journal of Physical Chemistry Letters, 11, 7843-7848(2020). http://www.researchgate.net/publication/344008662_Optical-Optical_Double-Resonance_Absorption_Spectroscopy_of_Molecules_with_kHz_Accuracy

[62] Hua T P, Sun Y R, Wang J et al. Frequency metrology of molecules in the near-infrared by NICE-OHMS[J]. Optics Express, 27, 6106-6115(2019). http://www.researchgate.net/publication/331244746_Frequency_metrology_of_molecules_in_the_near-infrared_by_NICE-OHMS

[63] Zhao G. Design and optimization of ultrasensitive noise-immune cavity enhanced optical heterodyne molecular spectroscopy[D]. Taiyuan: Shanxi University, 91-99(2018).

[64] Ma W G, Zhou Y T, Zhao G et al. Review on noise immune cavity enhanced optical heterodyne molecular spectroscopy[J]. Chinese Journal of Lasers, 45, 0911007(2018).

[65] Jia M Y, Zhao G, Hou J J et al. Research and data processing of double locked cavity ringdown absorption spectroscopy[J]. Acta Physica Sinica, 65, 128701(2016).

[66] Jia M Y. Investigation of trace gas detection based on noise-immune cavity-enhanced optical heterodyne molecular spectroscopy[D]. Taiyuan: Shanxi University, 31-41(2018).

[67] Zhou Y T, Liu J X, Guo S J et al. Laser frequency stabilization based on a universal sub-Doppler NICE-OHMS instrumentation for the potential application in atmospheric lidar[J]. Atmospheric Measurement Techniques, 12, 1807-1814(2019). http://www.researchgate.net/publication/331886566_Laser_frequency_stabilization_based_on_a_universal_sub-Doppler_NICE-OHMS_instrumentation_for_the_potential_application_in_atmospheric_lidar

[68] Yang L, Lin H, Feng X J et al. Saturation cavity ring-down spectrometry using a dynamical relaxation model[J]. Optics Express, 27, 1769-1776(2019). http://www.researchgate.net/publication/330549272_Saturation_cavity_ring-down_spectrometry_using_a_dynamical_relaxation_model

[69] Yang L, Lin H, Plimmer M D et al. Measurement of the spectral line positions in the 2v3 R(6) manifold of methane[J]. Journal of Quantitative Spectroscopy and Radiative Transfer, 245, 106888(2020). http://www.sciencedirect.com/science/article/pii/S0022407319308945

[70] Yang L, Lin H, Feng X J et al. Lineshape parameter measurement of the 2ν3 R1 manifold of methane using cavity ring-down spectroscopy[J]. Spectroscopy and Spectral Analysis, 38, 299-300(2018).

[71] Zhou S, Han Y L, Li B C. Pressure optimization of an EC-QCL based cavity ring-down spectroscopy instrument for exhaled NO detection[J]. Applied Physics B, 124, 1-8(2018).

[72] Zhou S, Han Y L, Li B C. Trace moisture measurement with 5.2 μm quantum cascade laser based continuous-wave cavity ring-down spectroscopy[J]. Spectroscopy and Spectral Analysis, 36, 3848-3852(2016).

[73] Zhou S, Han Y L, Li B C. Calibration method of pressure gauges based on cavity ring-down spectroscopy technique[J]. Spectroscopy and Spectral Analysis, 38, 1031-1035(2018).

[74] Qu Z C, Gao C M, Han Y L et al. Detection of chemical warfare agents based on quantum cascade laser cavity ring-down spectroscopy[J]. Chinese Optics Letters, 10, 050102(2012). http://www.opticsjournal.net/Articles/Abstract?aid=OJ120116000008LhNkQn

[75] Qu Z C, Li B C, Han Y L. Cavity ring-down spectroscopy for trace ammonia detection[J]. Journal of Infrared and Millimeter Waves, 31, 431-436(2012).

[76] Zhao T K, Qu Z C, Han Y L et al. Two optical feedback schemes for cavity ring-down technique for high reflectivity measurements[J]. Chinese Physics Letters, 27, 100701(2010).

[77] Gao L F, Li B C, Xiong S M. Experimental investigation of reflectivity measurement for cavity mirror at middle infrared by cavity ring-down spectroscopy[J]. Chinese Journal of Lasers, 37, 1078-1081(2010).

[78] Gao L F, Xiong S M, Li B C et al. Analysis of reflectivity measurement by cavity ring-down spectroscopy[J]. High Power Laser & Particle Beams, 17, 335-338(2005).

[79] Li Z Y, Hu R Z, Xie P H et al. Simultaneous measurement of NO and NO2 by a dual-channel cavity ring-down spectroscopy technique[J]. Atmospheric Measurement Techniques, 12, 3223-3236(2019).

[80] Wang D, Hu R Z, Xie P H et al. Measurement of nitrogen pentoxide in nocturnal atmospheric based on cavity ring-down spectroscopy[J]. Acta Optica Sinica, 37, 0901001(2017).

[81] Hu R Z, Wang D, Xie P H et al. Diode laser cavity ring-down spectroscopy for atmospheric NO2 measurement[J]. Acta Optica Sinica, 36, 0230006(2016).

[82] Jin H W, Hu R Z, Xie P H et al. Study on the photoacoustic technology to simultaneous in situ detection of the cavity ring-down spectrum for multi-optical parameters[J]. IEEE Photonics Journal, 12, 1-11(2020). http://ieeexplore.ieee.org/document/8968316

[83] Wang D, Hu R Z, Xie P H et al. A novel calibration method for atmospheric NO3 radical via high reflectivity cavity[J]. Measurement Science and Technology, 31, 085801(2020). http://iopscience.iop.org/article/10.1088/1361-6501/ab8833

[84] Jin H W, Hu R Z, Xie P H et al. Photo-acoustic technology applied to ppb level NO2 detection by using low power blue diode laser[J]. Acta Physica Sinica, 68, 070703(2019).

[85] Lin C, Hu R Z, Xie P H et al. Simultaneous measurement of nitrogen dioxide and organic nitrate based on thermal dissociation cavity ring-down spectroscopy[J]. Acta Optica Sinica, 40, 1201003(2020).

[86] Wu S Y, Hu R Z, Xie P H et al. Real-time measurement of NOy (total reactive nitrogen oxide) by cavity ring down spectrometer (CRDS)[J]. Spectroscopy and Spectral Analysis, 40, 1661-1667(2020).

[87] Wang D, Xie P H, Hu R Z et al. Progress of measurement of atmospheric NO3 radicals[J]. Journal of Atmospheric and Environmental Optics, 10, 102-116(2015).

[88] Yuan F, Hu M, He Y B et al. Development of an in situ analysis system for methane dissolved in seawater based on cavity ringdown spectroscopy[J]. Review of Scientific Instruments, 91, 083106(2020). http://www.researchgate.net/publication/343701049_Development_of_an_in_situ_analysis_system_for_methane_dissolved_in_seawater_based_on_cavity_ringdown_spectroscopy

[89] Yuan F, Gao J, Yao L et al. Development of highly sensitive balloon-borne methane measurement system based on cavity ringdown spectroscopy[J]. Optics and Precision Engineering, 28, 1881-1892(2020).

[90] Li Z Y, Xie P H, Hu R Z et al. Observations of N2O5 and NO3 at a suburban environment in Yangtze River Delta in China: estimating heterogeneous N2O5 uptake coefficients[J]. Journal of Environmental Sciences, 95, 248-255(2020). http://www.sciencedirect.com/science/article/pii/S1001074220301893

[91] Li Z Y, Hu R Z, Xie P H et al[J]. CEAS for measurements of atmospheric N₂O₅ in Beijing, China. Science of the Total Environment, 613/614, 131-139(2018).

[92] Chen B, Sun Y R, Zhou Z Y et al. Ultrasensitive, self-calibrated cavity ring-down spectrometer for quantitative trace gas analysis[J]. Applied Optics, 53, 7716-7723(2014).

[93] Chen B, Wang J, Sun Y R et al. Broad-range detection of water vapor using cavity ring-down spectrometer[J]. Chinese Journal of Chemical Physics, 28, 440-444(2015). http://d.wanfangdata.com.cn/Periodical/hxwlxb201504010

[94] Chen B, Kang P, Li J Y et al. Quantitative moisture measurement with a cavity ring-down spectrometer using telecom diode lasers[J]. Chinese Journal of Chemical Physics, 28, 6-10(2015). http://scitation.aip.org/content/cps/journal/cjcp/28/1/10.1063/1674-0068/28/cjcp1410185

[95] Chen B, Zhou Z Y, Kang P et al. Trace carbon monoxide detection with a cavity ring-down spectrometer[J]. Spectroscopy and Spectral Analysis, 35, 971-974(2015).

[96] Sun L Q, Chen B, Kan R F et al. High-sensitivity rapidly swept cavity ringdown spectroscopy for monitoring ambient CH4[J]. Acta Optica Sinica, 35, 0930002(2015).

[97] Astel A, Walna B. Szczepaniak I K K, et al. Application of chemometry to the comparison of atmospheric precipitation pollution profiles in urban and ecologically protected areas[J]. Chemia Analityczna, 51, 377-389(2006).

[98] Yang X, Lan Y, Meng J et al. Effects of maize stover and its derived biochar on greenhouse gases emissions and C-budget of brown earth in Northeast China[J]. Environmental Science and Pollution Research, 24, 8200-8209(2017).

[99] Bi Z, Zhou Z Y, Wang D F et al. Research progress of reference materials for atmospheric background greenhouse gases measurement[J]. Chemical Analysis and Meterage, 23, 97-102(2014).

[100] Zhao X D, Wu L, Wang J et al. Concentration variation and law of greenhouse gases in National Station for Background Atmospheric Monitoring, Menyuan, Qinghai, China and compare with Xining[J]. IOP Conference Series: Earth and Environmental Science, 233, 052044(2019). http://iopscience.iop.org/article/10.1088/1755-1315/233/5/052044

[101] Lee S J, Song S K, Han S B. Influence of greenhouse gases on radiative forcing at urban center and background sites on Jeju Island using the atmospheric radiative transfer model[J]. Atmosphere, 27, 423-433(2017). http://www.dbpia.co.kr/Article/NODE07286509

[102] Nyfeler P, Schanda R, Moret H et al. Measurements of greenhouse gases at Beromunster tall-tower station in Switzerland[J]. Atmospheric Measurement Techniques, 9, 2603-2614(2016). http://smartsearch.nstl.gov.cn/paper_detail.html?id=1b95ecd3ac3b244bfcf8432398d631ee

[103] Gomez-Pelaez A J, Ramos R, Cuevas E et al. Atmospheric CO2, CH4, and CO with the CRDS technique at the Izaña Global GAW station: instrumental tests, developments, and first measurement results[J]. Atmospheric Measurement Techniques, 12, 2043-2066(2019). http://www.researchgate.net/publication/332181680_Atmospheric_CO2_CH4_and_CO_with_the_CRDS_technique_at_the_Izana_Global_GAW_station_instrumental_tests_developments_and_first_measurement_results/download

[104] Morgan E J. Lavri J V, Seifert T, et al. Continuous measurements of greenhouse gases and atmospheric oxygen at the Namib Desert Atmospheric Observatory[J]. Atmospheric Measurement Techniques Discussions, 8, 1511-1558(2015).

[105] Berhanu T A, Satar E, Schanda R et al. Measurements of greenhouse gases at Beromünster tall tower station in Switzerland[J]. Atmospheric Measurement Techniques Discussions, 8, 10793-10822(2015). http://www.researchgate.net/publication/283087401_Measurements_of_greenhouse_gases_at_Beromunster_tall_tower_station_in_Switzerland

[106] Gao J, Yao T, Masson-Delmotte V et al. Collapsing glaciers threaten Asia's water supplies[J]. Nature, 565, 19-21(2019). http://www.ncbi.nlm.nih.gov/pubmed/30602744

[107] Yao T D, Thompson L, Yang W et al. Different glacier status with atmospheric circulations in Tibetan Plateau and surroundings[J]. Nature Climate Change, 2, 663-667(2012). http://www.nature.com/nclimate/journal/v2/n9/abs/nclimate1580.html

[108] Zhang G Q, Yao T D, Piao S L et al. Extensive and drastically different alpine lake changes on Asia's high plateaus during the past four decades[J]. Geophysical Research Letters, 44, 252-260(2017).

[109] Farinotti D, Longuevergne L, Moholdt G et al. Substantial glacier mass loss in the Tien Shan over the past 50 years[J]. Nature Geoscience, 8, 716-722(2015).

[110] Yao T D, Chen F H, Cui P et al. From Tibetan Plateau to third pole and pan-third pole[J]. Bulletin of Chinese Academy of Sciences, 32, 924-931(2017).

[111] Wu X J, Wang X S, Wang Y et al. Origin of water in the Badain Jaran Desert, China: new insight from isotopes[J]. Hydrology and Earth System Sciences, 21, 4419-4431(2017). http://www.researchgate.net/publication/319565654_origin_of_water_in_the_badain_jaran_desert_china_new_insight_from_isotopes

[112] Wang G X, Qian J, Cheng G D. Current situation and prospect of the ecological hydrology[J]. Advance in Earth Sciences, 16, 314-323(2001).

[113] Zhang Y C, Sun H Y, Shen Y J et al. Application of hydrogen and oxygen stable isotopes technique in the water depletion of ecosystems[J]. Scientia Geographica Sinica, 32, 289-293(2012).

[114] Cui J P, Tian L D, Liu Q et al. Signal of Typhoon Phailin from Indian Ocean captured by atmospheric water vapor isotope, central Tibetan Plateau[J]. Chinese Science Bulletin, 59, 3526-3532(2014).

[115] Yao T D, Ding L F, Pu J C et al. The characteristics of δ18O during snowfall in Tanggula Mountain area of Qinghai-Tibet Plateau and its relationship with water vapor source[J]. Chinese Science Bulletin, 36, 1570-1573(1991).

[116] An W L, Hou S G, Zhang W B et al. Corrigendum: possible recent warming hiatus on the northwestern Tibetan Plateau derived from ice core records[J]. Scientific Reports, 7, 46863(2017).

[117] Liu J, Liu W, An Z et al. Different hydrogen isotope fractionations during lipid formation in higher plants: implications for paleohydrology reconstruction at a global scale[J]. Scientific Reports, 6, 19711(2016).

[118] Liu J F, Xiao C D, Ding M H et al. Observing and modeling the atmospheric water vapor isotopes in south hemisphere and their implication of water cycle[J]. Journal of Glaciology and Geocryology, 36, 1440-1449(2014).

[119] Lis G, Wassenaar L I, Hendry M J. High-precision laser spectroscopy D/H and 18O/ 16O measurements of microliter natural water samples[J]. Analytical Chemistry, 80, 287-293(2008). http://pubs.acs.org/doi/10.1021/ac701716q

[120] Gupta P, Noone D, Galewsky J et al. Demonstration of high-precision continuous measurements of water vapor isotopologues in laboratory and remote field deployments using wavelength-scanned cavity ring-down spectroscopy (WS-CRDS) technology[J]. Rapid Communications in Mass Spectrometry, 23, 2534-2542(2009).

[121] Kei Y. Stable water isotopes in climatology, meteorology, and hydrology: a review[J]. Journal of the Meteorological Society of Japan, 93, 513-533(2015). http://ci.nii.ac.jp/naid/130005110008

[122] Reeburgh W S. Oceanic methane biogeochemistry[J]. Chemical Reviews, 107, 486-513(2007).

[123] Valentine D L, Kastner M, Wardlaw G D et al. Biogeochemical investigations of marine methane seeps, Hydrate Ridge, Oregon[J]. Journal of Geophysical Research: Biogeosciences, 110, G02005(2005).

[124] Ruppel C D, Kessler J D. The interaction of climate change and methane hydrates[J]. Reviews of Geophysics, 55, 126-168(2017). http://smartsearch.nstl.gov.cn/paper_detail.html?id=cb1984684066b153986ed2aa5f2605e6

[125] Sun C Y, Zhao H, He H C et al. In-situ detection of ocean floor seawater and gas hydrate exploration in the South China Sea[J]. Earth Science Frontiers, 24, 225-241(2017).

[126] Garcia M L, Masson M. Environmental and geologic application of solid-state methane sensors[J]. Environmental Geology, 46, 1059-1063(2004).

[127] Isern A R. National science foundation's ocean observatory initiative[J]. Sea Technology, 46, 55-59(2005). http://gateway.proquest.com/openurl?res_dat=xri:pqm&ctx_ver=Z39.88-2004&rfr_id=info:xri/sid:baidu&rft_val_fmt=info:ofi/fmt:kev:mtx:article&genre=article&jtitle=Sea%20Technology&atitle=National%20Science%20Foundation%27s%20Ocean%20Observatory%20Initiative

[128] McCartt A D, Ognibene T, Bench G et al. Measurements of carbon-14 with cavity ring-down spectroscopy[J]. Nuclear Instruments and Methods in Physics Research Section B, 361, 277-280(2015).

[129] Genoud G, Lehmuskoski J, Bell S et al. Laser spectroscopy for monitoring of radiocarbon in atmospheric samples[J]. Analytical Chemistry, 91, 12315-12320(2019). http://pubs.acs.org/doi/10.1021/acs.analchem.9b02496

[130] Terabayashi R, Saito K, Sonnenschein V et al. Mid-infrared cavity ring-down spectroscopy using DFB quantum cascade laser with optical feedback for radiocarbon detection[J]. Japanese Journal of Applied Physics, 59, 092007(2020). http://iopscience.iop.org/article/10.35848/1347-4065/abb20e

[131] Chen Y, Mahaffy P, Holmes V et al. Near infrared cavity ring-down spectroscopy for isotopic analyses of CH4 on future Martian surface missions[J]. Planetary and Space Science, 105, 117-122(2015). http://www.sciencedirect.com/science/article/pii/S0032063314003754

[132] Bauska T K, Walters G, Gázquez F et al. Online differential thermal isotope analysis of hydration water in minerals by cavity ringdown laser spectroscopy[J]. Analytical Chemistry, 90, 752-759(2018). http://europepmc.org/abstract/MED/29131947

[133] Chen Y, Lehmann K K, Kessler J et al. Measurement of the 13C/ 12C of atmospheric CH4 using near-infrared (NIR) cavity ring-down spectroscopy[J]. Analytical Chemistry, 85, 11250-11257(2013). http://europepmc.org/abstract/med/24160448