Dyah R. Panuju

Bio: Dyah R. Panuju is an academic researcher from Bogor Agricultural University. The author has contributed to research in topics: Normalized Difference Vegetation Index & Synthetic aperture radar. The author has an hindex of 8, co-authored 50 publications receiving 426 citations. Previous affiliations of Dyah R. Panuju include Australian Defence Force Academy.

Perencanaan dan pengembangan wilayah

Abstract: Di Indonesia, berbagi konsep nomenklatur kewilayahan seperti 'wilayah', 'kawasan', 'daerah', 'regional', 'area', 'ruang' dan istilah-istilah sejenis, banyak dipergunakn dan saling dapat di pertukarkan pengertiannya walaupun masing-masing memiliki bobot penekanan pemahaman yang berbeda-beda. Secara teoritik, tidak ada perbedaan nomenklatur antara istilah wilayah, kawasan dan daerah. Semuanya secara umum dapat diistilahkan dengan wilayah (region). Buku ini mencoba mengisi kekosongan -kekosongan bacaan di bidang keilmuan yang terkait dengan kajian perencanaan dan pengembangan wilayah. Domain bahasan buku ini tidak sekadar membahas teori-teori yang dikembangkan bidang ilmu kewilayahan (Regional Science), melainkan juga membahas bidang-bidang ilmu lain yang terkait dan sangat penting untuk menjawab kompleksitas permasalahan pembangunan wilayah di Negara-negara berkembang, terutama di Indonesia, seperti kritik-kritik atas teori-teori pembangunan yang dikembangkan di dunia barat, teori-teori perencanaan dan aspek-aspek kelembagaan hingga masalah-masalah local community development, social capital, hingga ke common property dalam kaitannya dengan perencanaan makro, regional dan lokal.

Identification of Agricultural Drought Extent Based on Vegetation Health Indices of Landsat Data: Case of Subang and Karawang, Indonesia☆

Abstract: Agricultural drought monitoring is paramount in order to maintain food security in Indonesia, particularly in Subang and Karawang as the national rice production centers. In this paper, satellite-borne remote sensing data are tested for monitoring drought extent in about 184.486 ha of both regencies. Vegetation Health Index (VHI), a vegetative drought indices based on remote sensing data, is studied in this case using long term sequence of 2000, 2005, 2010, and 2015 dry season Landsat data. VHI collates overall vegetation health, which in turn suitable to indicate agricultural drought extent. It measures either moisture vegetation/vegetation condition (VCI) or thermal condition of vegetation (TCI). Both indices were derived from Normalized Difference Vegetation Index (NDVI) and land surface temperature (LST) data respectively. The results revealed that VHI decreased more than 50 percent, from 30.86 in 2000 to 14.66 in 2015. This figure indicated drought extent intensified in research area, from mild drought to severe drought. The severity was mainly triggered by the rising LST from 27°C in 2000 to 40°C in 2015. In addition, there was a decreasing tendency of NDVI values in recent years, leading agricultural fields more susceptible to drought.

Change Detection Techniques Based on Multispectral Images for Investigating Land Cover Dynamics

Abstract: Satellite images provide an accurate, continuous, and synoptic view of seamless global extent. Within the fields of remote sensing and image processing, land surface change detection (CD) has been amongst the most discussed topics. This article reviews advances in bitemporal and multitemporal two-dimensional CD with a focus on multispectral images. In addition, it reviews some CD techniques used for synthetic aperture radar (SAR). The importance of data selection and preprocessing for CD provides a starting point for the discussion. CD techniques are, then, grouped based on the change analysis products they can generate to assist users in identifying suitable procedures for their applications. The discussion allows users to estimate the resources needed for analysis and interpretation, while selecting the most suitable technique for generating the desired information such as binary changes, direction or magnitude of changes, “from-to” information of changes, probability of changes, temporal pattern, and prediction of changes. The review shows that essential and innovative improvements are being made in analytical processes for multispectral images. Advantages, limitations, challenges, and opportunities are identified for understanding the context of improvements, and this will guide the future development of bitemporal and multitemporal CD methods and techniques for understanding land cover dynamics.

Remote Sensing And Image Interpretation

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Spectral mixture modeling - A new analysis of rock and soil types at the Viking Lander 1 site. [on Mars]

Abstract: A Viking Lander 1 image was modeled as mixtures of reflectance spectra of palagonite dust, gray andesitelike rock, and a coarse rocklike soil. The rocks are covered to varying degrees by dust but otherwise appear unweathered. Rocklike soil occurs as lag deposits in deflation zones around stones and on top of a drift and as a layer in a trench dug by the lander. This soil probably is derived from the rocks by wind abrasion and/or spallation. Dust is the major component of the soil and covers most of the surface. The dust is unrelated spectrally to the rock but is equivalent to the global-scale dust observed telescopically. A new method was developed to model a multispectral image as mixtures of end-member spectra and to compare image spectra directly with laboratory reference spectra. The method for the first time uses shade and secondary illumination effects as spectral end-members; thus the effects of topography and illumination on all scales can be isolated or removed. The image was calibrated absolutely from the laboratory spectra, in close agreement with direct calibrations. The method has broad applications to interpreting multispectral images, including satellite images.

New Theory of the Earth

Abstract: New Theory of the Earth is an interdisciplinary advanced textbook on all aspects of the interior of the Earth and its origin, composition, and evolution: geophysics, geochemistry, dynamics, convection, mineralogy, volcanism, energetics and thermal history. This is the only book on the whole landscape of deep Earth processes that ties together all the strands of the subdisciplines. This book is a complete update of Anderson’s Theory of the Earth (1989). It includes dozens of new figures and tables. A novel referencing system using Googlets is introduced that allows immediate access to supplementary material via the internet. There are new sections on tomography, self-organization, and new approaches to plate tectonics. The paradigm/paradox approach to developing new theories is developed, and controversies and contradictions have been brought more center-stage. As with the Theory of the Earth, this new edition will prove to be a stimulating textbook for advanced courses in geophysics, geochemistry, and planetary science, and a supplementary textbook on a wide range of other advanced Earth science courses. It will also be an essential reference and resource for all researchers in the solid Earth sciences.