XXII ISPRS Congress 2012: Technical Commission VIII

Shortis, M.; Shimoda, H.; Cho, K.

Bibliographic data

Multivolume work

Persistent identifier:: 1663813779

Title:: XXII ISPRS Congress 2012

Sub title:: Melbourne, Australia, 25 August-1 September 2012

Year of publication:: 2013

Place of publication:: Red Hook, NY

Publisher of the original:: Curran Associates, Inc.

Identifier (digital):: 1663813779

Language:: English

Additional Notes:: Kongress-Thema: Imaging a sustainable future

Corporations:: International Society for Photogrammetry and Remote Sensing, Congress, 22., 2012, Melbourne; International Society for Photogrammetry and Remote Sensing

Adapter:: International Society for Photogrammetry and Remote Sensing, Congress, 22., 2012, Melbourne; International Society for Photogrammetry and Remote Sensing

Founder of work:: International Society for Photogrammetry and Remote Sensing, Congress, 22., 2012, Melbourne; International Society for Photogrammetry and Remote Sensing

Other corporate:: International Society for Photogrammetry and Remote Sensing, Congress, 22., 2012, Melbourne; International Society for Photogrammetry and Remote Sensing

Document type:: Multivolume work

Volume

Persistent identifier:: 1663822514

Title:: Technical Commission VIII

Scope:: 590 Seiten

Year of publication:: 2014

Place of publication:: Red Hook, NY

Publisher of the original:: Curran Associates, Inc.

Identifier (digital):: 1663822514

Illustration:: Illustrationen, Diagramme

Signature of the source:: ZS 312(39,B8)

Language:: English

Additional Notes:: Erscheinungsdatum des Originals ist ermittelt.; Literaturangaben

Usage licence:: Attribution 4.0 International (CC BY 4.0)

Editor:: Shortis, M.; Shimoda, H.; Cho, K.

Corporations:: International Society for Photogrammetry and Remote Sensing, Congress, 22., 2012, Melbourne; International Society for Photogrammetry and Remote Sensing

Adapter:: International Society for Photogrammetry and Remote Sensing, Congress, 22., 2012, Melbourne; International Society for Photogrammetry and Remote Sensing

Founder of work:: International Society for Photogrammetry and Remote Sensing, Congress, 22., 2012, Melbourne; International Society for Photogrammetry and Remote Sensing

Other corporate:: International Society for Photogrammetry and Remote Sensing, Congress, 22., 2012, Melbourne; International Society for Photogrammetry and Remote Sensing

Publisher of the digital copy:: Technische Informationsbibliothek Hannover

Place of publication of the digital copy:: Hannover

Year of publication of the original:: 2019

Document type:: Volume

Collection:: Earth sciences

Chapter

Title:: [VIII/6: Agriculture, Ecosystems and Bio-Diversity]

Document type:: Multivolume work

Structure type:: Chapter

Chapter

Title:: ASSESSMENT OF INDIAN CARBON CYCLE COMPONENTS USING EARTH OBSERVATION SYSTEMS AND GROUND INVENTORY V. K. Dadhwal

Document type:: Multivolume work

Structure type:: Chapter

(IX-B8, 2012 1e study reports n 6.13 t/ha to AGB has been ained by using ha. es have resulted : from 6244.8 to At of the carbon Spatial explicit ted to quantify g data mining the relationship ver 17,500 plots mporal spectral 1 density using ground) from sed on original nented to derive ver cropland of »-continent were ud cover using t fields of time- adiation (PAR) te sensing data. e radiation was and chlorophyll itial distribution y adjusting for h as C3 and C4 usting potential of daily grided surface wetness ). rrestrial carbon O) or sink (CO, n land use and econd national ates of 3.51 Pg y were reported [n order to bring soil sample data lia out of which ] frame work is ILC, topography Carbon Pools. 09). Chhabra et easurements of mn location, soil and forest type | organic carbon h classes (0-50 lensity estimates d from 37.5 t/ha in littoral and ensity estimates 1 in tropical dry ate forest for top International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Volume XXXIX-B8, 2012 XXII ISPRS Congress, 25 August — 01 September 2012, Melbourne, Australia 23 Soil and Vegetation — Atmosphere Fluxes: The tower based flux measurements are reported to provide unbiased regional estimates of CO; fluxes (Baldocchi et al., 2001). Initial efforts were made to identify the needs and approach for developing flux net work over India (Sundareshwar et al., 2007). As part of National Carbon Project (NCP) initiative of ISRO-GBP a nationwide network of carbon towers in major forests, croplands and grasslands for the measurement and modeling of the net carbon flux using eddy covariance techniques, satellite remote sensing data and models is planned. Accordingly the Soil and Vegetation — Atmosphere Carbon Flux study is being conducted with the following objectives: * Analysis of atmospheric CO; patterns to study spatio — temporal Carbon source-sink relations over India. Establishment of flux towers and measurement of ed- dy covariance and meteorological parameters to study the exchanges of carbon dioxide (CO;), water vapour and energy balance between terrestrial ecosystems and the atmosphere. Measurement and spatial modeling of soil CO; fluxes Integration of observations and component — wise modelling for conducting full carbon balance ac- counting of India and estimation of net carbon bal- ©, hd 53 SS SO, ee ance. Figure 2: showing Flux tower in Mangrove with sensors and the approach to the tower Three towers at forest sites of 15-50 m height at Barkot, Uttaranchal; Haldwani, Uttaranchal and Betul, M.P. were established. A new tower in mangrove forests of Sunderabans (Figure2) has also established where methane flux is also being measured in addition to CO, and water. The daily peak CH, flux in the month of March 2012 was around 2 micromol/m/s. Site specific studies was also conducted for measurement and modeling of soil respiration and emission fluxes using automatic soil CO; exchange system at Haldwani tower site. One 3 meter tower at Agriculture site (Meerut) with open Path flux tower has been installed in an agro-ecosystem at Modipuram, Meerut to measure net CO, exchange between atmosphere and crop canopy. The biophysical data thus generated is being analysed to understand diurnal, seasonal and inter annual variation in carbon and water fluxes and NPP modeling using RS based models. The 10 Hz micrometeorological data are processed inclusive of various corrections to derive half-hourly fluxes of carbon, water vapour and heat fluxes by using various softwares. Field measurements such as leaf area index, soil moisture and chlorophyll content index were measured at weekly interval. Half-hourly photosynthetically active radiation above and below wheat canopy was measured on a weekly basis. Daily GPP and ecosystem respiration was computed from half- hourly NEE after applying gap filling, filtering and nocturnal NEE-temperature relationship. Day-time ecosystem respiration was computed by applying temperature response function to half-hourly temperature data. Light-response curves and its parameters were derived at different growth stages of wheat by fitting rectangular hyperbolic functions between measured GPP and absorbed photosynthetically active radiation. Diurnal pattern in Net ecosystem exchange (NEE) reveals negative NEE during day- time representing CO, uptake and positive during night as release of CO;. The amplitude of the diurnal variation in NEE increased with growth of wheat and reached its peak around the pre-anthesis stage. The mid-day uptake during this stage was around 1.15 mg CO, ms” and night-time release was around 0.15 mg CO; m?s'. Large daily GPP above 30 g CO, m?d' continued until mid of anthesis stage (15 march) and decline rapidly during maturity stage. (Patel et al., 2010 and Patel et al. 2011). The Haldwani flux tower is established over mixed plantation and natural forests of Uttaranchal state. The flux tower at Haldwani is equipped with CSAT sonic anemometer, LI-7000 closed path gas analyzer, radiation and soil thermal sensors. Measurements are logged at 10 Hz interval using data logger. Half-hourly CO, flux measurements corresponding to dry period (18-28 Jan, 2009) and flush stage (April, 2009) were processed to study the diurnal variation in net ecosystem exchange and its response to environmental variables. Light- response curves were derived for quantifying quantum photosynthetic efficiency. Efficiency worked out to be 0.021 pmol CO, pmol photon! during flush stage. Respiration- temperature response was also evaluated to derive Qio coefficients. In order to quantify CO; fluxes over large region, initial efforts are made to upscale site-specific data using process based ecosystem models. Figure 3 shows one representative CO, flux with day time CO, removal with a daily peak mean of -3 mg/m//s and night time CO; build up due to respiration alone from the Betul flux tower located in Teak mixed forest from central India. 15 1 0.5 0 -0.5 [Mgl[mol-1][m-2) Figure 3: showing CO; flux results from eddy covariance method from Betul tower, M.P., India.

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