@Pyo10; @Planck14-14]). Subsequent to IRAS, COBE/DIRBE conducted an all-sky survey with a wider wavelength coverage than IRAS [@Hauser98]. Many efforts have been devoted to describing the structure of the zodiacal dust cloud, and a number of models have been developed using IR satellite data, including the IRAS and COBE/DIRBE surveys [@Good86; @RR90; @RR91; @Jones93; @Vrtilek95; @Kelsall98; @Wright98; @RR13]. The most commonly used ZE models are based on the DIRBE data (e.g., [@Kelsall98]: hereafter the Kelsall model; [@Wright98]: hereafter the Wright model). @Gorjian00 investigated the DIRBE ZE model in depth and modified the parameters of the Wright model ([@Wright98]). The Kelsall and the Wright/Gorjian models explain the IPD cloud complex with the following three components: a smooth cloud, asteroidal dust bands and an MMR component. In the Kelsall model, the MMR component is further divided into a circumsolar ring and a blob trailing the Earth [@Kelsall98]. For each of the three components, parameterised functions have been introduced to describe the spatial distribution of the dust number density in heliocentric coordinates.

These models, however, have limitations in their ability to reproduce small-scale structures. The COBE/DIRBE team provided Zodi-Subtracted Mission Average (ZSMA) map data, which were created by subtracting the ZE using the 