Medium Spatial Resolution Satellite Imagery to Estimate Gross Primary Production in an Urban Area

Remote Sens. 2010, 2, 1495-1506; doi:10.3390/rs2061495
Remote Sensing
ISSN 2072-4292
http://www.mdpi.com/journal/remotesensing

Article

Medium Spatial Resolution Satellite Imagery to Estimate Gross Primary Production in an Urban Area

A. Rahman As-syakur 1,2,*, Takahiro Osawa 2 and I Wayan S. Adnyana 1, 2

Received: 6 April 2010; in revised form: 10 May 2010 / Accepted: 21 May 2010 /
Published: 3 June 2010

Abstract: Remote sensing data with medium spatial resolution can provide useful information about Gross Primary Production (GPP), especially on the scale of urban areas. Most models of ecosystem carbon exchange that are based on remote sensing use some form of the light use efficiency (LUE) model. The aim of this work is to analyze the distribution of annual GPP in the urban area of Denpasar, Bali. Additional analysis using two types of satellite data (ALOS/AVNIR-2 and Aster) addresses the impact of spatial resolution on the detection of various ecosystem processes in Denpasar.

Annual GPP estimated using ALOS/AVNIR-2 varied from 0.13 gC m−2 yr−1 to 2,586.18 gC m−2 yr−1. Meanwhile, the Aster estimate varied from 0.14 gC m−2 yr−1 to 2,595.26 gC m−2 yr−1. GPP as measured by ALOS/AVNIR-2 was lower than that from Aster because ALOS/AVNIR-2 has medium spatial resolution and a smaller spectral range than Aster. Variations in land use may influence the measured value of GPP via differences in vegetation type, distribution, and photosynthetic pathway type. The medium spatial resolution of the remote sensing data is crucial for discriminating different land cover types in heterogeneous urban areas. Given the heterogeneity of land cover over Denpasar, ALOS/AVNIR-2 detects a smaller maximum value of GPP than Aster, but the annual mean GPP from ALOS/AVNIR-2 is higher than that from Aster. Based on comparisons with previous work, we find that ALOS/AVNIR-2 and Aster satellite data provided more accurate estimates of maximum GPP in Denpasar and in the tropical Kalimantan-Indonesia and Amazon forest than estimates derived from the MODIS GPP product (MOD17).

Keywords: ALOS/AVNIR-2; Aster; gross primary production; spatial resolution

More can be read at

As-syakur, A.R.; Osawa, T.; Adnyana, I.W.S. Medium Spatial Resolution Satellite Imagery to Estimate Gross Primary Production in an Urban Area. Remote Sens. 2010, 2, 1496-1507.

4 Tanggapan to “Medium Spatial Resolution Satellite Imagery to Estimate Gross Primary Production in an Urban Area”

  1. Yudha Says:

    Selamat atas publikasinya.
    Ditunggu nih partisipasinya di Meteorama.

  2. La An Says:

    @Yudha
    terimakasih… semoga bermanfaat…

  3. Radian Zikri Says:

    Assalamualaikum, pak saya sangat tertarik membaca tulisan bapak mengenai ilmu. pak boleh ya kapan-kapan kita sharing, oh ia pak saya minta alamat emailnya mohon di kirim ke email saya pak. semoga warisan ilmu dapat dirasakan oleh umat

  4. La An Says:

    @Radian Zikri
    Waalakumussalam…
    boleh bangat… email saya bisa dilihat di halaman “tentang si tukang ketik”


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